NORTH DAKOTA
SLOPE COUNTY
LOCALITY NDGS L3551
HELL CREEK FORMATION
LANCIAN
MAASTRICHTIAN STAGE
UPPER SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATEST CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990
COHORT: CROCODYLOTARSI BENTON & CLARK, 1988
MAGNORDER: SUCHIA KREBS, 1974
SUPERORDER: CROCODYLOMORPHA WALKER, 1968
GRANDORDER: CROCODILIFORMES HAY, 1930
Incertae sedis
Gen. sp indet.
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
SUBORDER: ANKYLOPOLLEXIA SERENO, 1986
INFRAORDER: STYRACOSTERNA SERENO, 1986
SUPERFAMILY: HADROSAUROIDEA COPE, 1869 (SENSU SERENO, 1986)
Family: HADROSAURIDAE COPE, 1869
Subfamily: HADROSAURINAE Cope, 1869 (sensu Lambe, 1918)
Tribe: EDMONTOSAURINI Brett-Surman vide Chapman & Brett-Surman, 1990
Edmontosaurus sp
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
NW OF MARMARTH
1975-BDM-01
HELL CREEK FORMATION
LANCIAN NA LAND MAMMAL AGE
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Subfamliy: PLASTOMENINAE Hay, 1908
CLADE NAME: PLASTOMENINI JASINSKI, HECKERT, SAILAR, LICHTIG, LUCAS & DODSON, 2022
*Hutchemys walkerorum
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
DMNH LOCALITY 5873
HELL CREEK FORMATION
LANCIAN NA LAND MAMMAL AGE
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Subfamliy: PLASTOMENINAE Hay, 1908
CLADE NAME: PLASTOMENINI JASINSKI, HECKERT, SAILAR, LICHTIG, LUCAS & DODSON, 2022
Helopanoplia distincta
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
NORTHWES OF THE TOWN OF MARMARTH
'BIG TURTLE COVE' LOCALITY (DMNH LOCALITY 6303)
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: BAENOIDEA WILLIAMS, 1960
Family: BAENIDAE Cope, 1882
Subfamily: EUBAENINAE Gaffney, 1972
Eubaena cephalica
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Axestemys splendida
*Axestemys infernalis
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUPERCOHORT CHORISTODERA NOVA
ORDER: CHORISTODERA COPE, 1876
Family: CHAMPSOSAURIDAE Cope, 1884
Champsosaurus sp
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: EUORNITHOPODA SERENO, 1986
ORDER: IGUANODONTIA DOLLO, 1888
Family: THESCELOSAURIDAE Sternberg, 1937
Thescelosaurus sp
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
PTRM LOCALITY V86006
HELL CREEK FORMATION
LANCIAN NA LAND MAMMAL AGE
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Helopanoplia distincta
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
NDGS LOCALITY 64
HELL CREEK FORMATION
LANCIAN NA LAND MAMMAL AGE
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Helopanoplia distincta
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
3.54 KM NORTHEAST OF MARMARTH
NDGS LOCALITY 27
HELL CREEK FORMATION
LANCIAN NA LAND MAMMAL AGE
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: MAMMALIA LINNAEUS, 1758
SUBCLASS: PROTOTHERIA GILL, 1872
INFRACLASS: TRECHNOTHERIA McKENNA, 1975
LEGION: CLADOTHERIA McKENNA, 1975
SUBLEGION: ZATHERIA MCKENNA, 1975
INFRALEGION: TRIBOSPHENIDA (McKENNA, 1975) McKENNA & BELL, 1997
SUPERCOHORT: THERIA (PARKER & HASWELL, 1987) McKENNA & BELL, 1997
COHORT: MARSUPIALIA (ILLIGER, 1811) McKENNA & BELL, 1997
ORDER: STAGODONTIA ARCHER, 1984
Family: STAGODONTIDAE Marsh, 1889
Didelphodon vorax
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
TURTLE GRAVEYARD LOCALITY
HELL CREEK FORMATION
LANCIAN
MAASTRICHTIAN STAGE
UPPER SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATEST CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Axestemys infernalis
Gilmoremys lancensis = Aspiderets lancensis
_____________________________________________________________________________________
NORTH
DAKOTA
SLOPE
COUNTY
UNNUMBERD
MRF LOCALITY
HELL CREEK FORMATION
LANCIAN
MAASTRICHTIAN STAGE
UPPER SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATEST CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Gilmoremys lancensis = Aspiderets lancensis
_____________________________________________________________________________________
NORTH DAKOTA
NEAR MARMARTH
SLOPE COUNTY
BUCKLIN TOWNSHIP
NOTE: QUALIFIED RESEARCHERS CAN OBTAIN MORE DETAILED LOCALITY INFORMATION FROM THE NORTH DAKOTA HERITAGE CENTER
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: BAENOIDEA WILLIAMS, 1960
Family: BAENIDAE Cope, 1882
*Gamerabaena sonsalla
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Gen. sp indet.
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990
COHORT: CROCODYLOTARSI BENTON & CLARK, 1988
MAGNORDER: SUCHIA KREBS, 1974
SUPERORDER: CROCODYLOMORPHA WALKER, 1968
GRANDORDER: CROCODILIFORMES HAY, 1930
MICRORDER: MESOEUROCROCODYLIA WHETSTONE & WHYBROW, 1983
ORDER: EUSUCHIA emend HUXLEY, 1875
Incertae sedis
Gen. sp indet.
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
TURTLE BONEBED
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Axestemys infernalis
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
TURTLE RIDGE LOCALITY
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: BAENOIDEA WILLIAMS, 1960
Family: BAENIDAE Cope, 1882
CLADE NAME: BAENODDA BRINKMAN, 2003 (sensu JOYCE & LYSON, 2015
*Saxochely gilberti
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Axestemys splendida
= Aspideretoides splendidusAxestemys infernalis
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
BIG TURTLE COVE
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
_____________________________________________________________________________________SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Axestemys splendida
= Aspideretoides splendidusAxestemys infernalis
NORTH DAKOTA
SLOPE COUNTY
NEAR MARMARTH
BUCKLIN TOWNSHIP
TURTLE GRAVEYARD
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: BAENOIDEA WILLIAMS, 1960
Family: BAENIDAE Cope, 1882
Subfamily: PALATOBAENINAE Gaffney, 1972
*Palatobaena cohen
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: TRIONYCHIDAE Bell, 1828
Axestemys infernalis
____________________________________________________________________________________
SLOPE COUNTY
NEAR MARMARTH
MPM 3956
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: MARGINOCEPHALIA SERENO, 1986
ORDER: PACHYCEPHALOSAURIA MARYANSKA & OSMOLSKA, 1974
SUBORDER: DOMOCEPHALINIA SERENO, 1986
INFRAORDER: PACHYCEPHALOSAURIA (MARYANSKA & OSMOLSKA, 1974) COOPER, 1985
Family: PACHYCEPHALOSAURIDAE Sternberg, 1945
Subfamily: PACHYCEPHALOSAURINAE Sternberg, 1945 (sensu Sereno, 1998)
Stygimoloch spinifer
____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
NEAR CANNONBALL CREEK
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUBLEGION: DINOSAUROMORPHA BENTON & NORMAN IN BENTON, 1985
INFRALEGION: DINOSAURIFORMES NOVAS, 1992
SUPERCOHORT: DINOSAURIA OWEN, 1842
COHORT: ORNITHISCHIFORMES COOPER, 1985
MAGNORDER: ORNITHISCHIA SEELEY, 1888
SUPERORDER: NEORNITHISCHIA COOPER, 1985
GRANDORDER: ORNITHOPODA MARSH, 1871
MICRORDER: MARGINOCEPHALIA SERENO, 1986
ORDER: CERATOPIA MARSH, 1890
SUBORDER: NEOCERATOPIA SERENO, 1986
INFRAORDER: CORONOSAURIA SERENO, 1986
PARVORDER: CERATOPOMORPHA Wolfe & Kirkland, 1998 (emend)
Superfamily: CERATOPOIDEA Marsh, 1888 (sensu Hay, 1902)
Family: CERATOPIDAE Marsh, 1888
Subfamily: CERATOPIINAE Marsh, 1888 (sensu Abel, 1919)
Tribe: TRICERATOPINI nova
Triceratops prorsus
____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
UMCP LOCALITY V86049
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
SUPERLEGION: NEODIAPSIDA BENTON, 1985
LEGION: ARCHOSAUROMORPHA HUENE, 1946
SUPERCOHORT: CRUROTARSI SERENO & ARCUCCI, 1990
COHORT: CROCODYLOTARSI BENTON & CLARK, 1988
MAGNORDER: SUCHIA KREBS, 1974
SUPERORDER: CROCODYLOMORPHA WALKER, 1968
GRANDORDER: CROCODILIFORMES HAY, 1930
MICRORDER: MESOEUROCROCODYLIA WHETSTONE & WHYBROW, 1983
ORDER: EUSUCHIA emend HUXLEY, 1875
INFRAORDER: CROCODYLIA emend GMELIN, 1877
PARVORDER: BREVIROSTRES
Superfamily: ALLIGATORIDEA Buffetaut, 1985
GLOBIDONTA BROUCHU, 1999
Family: ALLIGATORIDAE Gray, 1844
Brachychampsa montana
____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
PTRM SITE V95018
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: KINOSTERNIDAE Agassiz, 1857
*Hoplochelys clark
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
PTRM SITE V00009
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: KINOSTERNIDAE Agassiz, 1857
Hoplochelys clark
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
PTRM SITE V01040
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: KINOSTERNIDAE Agassiz, 1857
Hoplochelys clark
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
PTRM SITE V02025
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: KINOSTERNIDAE Agassiz, 1857
Hoplochelys clark
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
PTRM SITE V86002
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: KINOSTERNIDAE Agassiz, 1857
Hoplochelys clark
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
PTRM SITE V88017
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: KINOSTERNIDAE Agassiz, 1857
Hoplochelys clark
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
PTRM SITE V92003
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: CHELONOMORPHA KUHN, 1960
SUPERCOHORT: TESTUDINES LINNAEUS, 1758
COHORT: CASICHELYDIA emend GAFFNEY & MEYLAN, 1988
MAGANORDER: CRYPTODIRA GAFFNEY & MEYLAN, 1988
SUPERORDER: SELMACRYPTODIRA GAFFNEY, HUTCHISON, JENKINS & MEEKR, 1987
GRANDORDER: DAIOCRYPTODIRA GAFFNEY & MEYLAN, 1988
MICRORDER: CENTROCRYPTODIRA GAFFNEY & MEYLAN, 1988
ORDER: POLYCRPTODIRA GAFFNEY & MEYLAN, 1988
SUBORDER: PROCOELOCRYPTODIRA GAFFNEY & MEYLAN, 1988
INFRAORDER: CHELOMACRYPTODIRA GAFFNEY & MEYLAN, 1988
PARVORDER: TRIONYCHIDA GRAY, 1870
Superfamily: TRIONYCHIDEA Bell, 1828 (sensu Gray, 1870)
Family: KINOSTERNIDAE Agassiz, 1857
Hoplochelys clark
_____________________________________________________________________________________
NORTH DAKOTA
SLOPE COUNTY
NDGS L226 (= PTRM SITE V98027)
HELL CREEK FORMATION
LANCIAN AGE
UPPER MAASTRICHTIAN STAGE
UPPERMOST SENONIAN SUBEPOCH
UPPER GULF EPOCH
LATE CRETACEOUS
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: MAMMALIA LINNAEUS, 1758
Incertae sedis
Gen. sp indet.
SUBCLASS: THERIIFORMES (ROWE, 1988) McKENNA & BELL, 1997
INFRACLASS: ALLOTHERIA (MARSH, 1880) McKENNA & BELL, 1997
ORDER: MULTITUBERCULATA COPE, 1884
Incertae sedis
Gen. sp indet.
SUBORDER: CIMOLODONTA McKENNA, 1975
Superfamily: PTILODONTOIDEA Cope, 1887 (sensu McKenna & Bell, 1997)
Family: PTILODONTIDAE Cope, 1887 (sensu McKenna & Bell, 1997)
Subfamily: NEOPLAGIAULACINAE Ameghino, 1890 (sensu McKenna & Bell, 1997)
Mesodma sp. df. M. thompsoni
Superfamily: DJADOCHTATHERIOIDEA Kielan-Jaworowska & Hurum, 1997 (sensu Kielan-Jaworowska & Hurum, 2001)
Family: CIMOLODONTIDAE Marsh, 1889
Cimolodon nitidus
Essonodon browni
SUBCLASS: PROTOTHERIA GILL, 1872
INFRACLASS: TRECHNOTHERIA McKENNA, 1975
LEGION: CLADOTHERIA McKENNA, 1975
SUBLEGION: ZATHERIA MCKENNA, 1975
INFRALEGION: TRIBOSPHENIDA (McKENNA, 1975) McKENNA & BELL, 1997
SUPERCOHORT: THERIA (PARKER & HASWELL, 1987) McKENNA & BELL, 1997
COHORT: MARSUPIALIA (ILLIGER, 1811) McKENNA & BELL, 1997
MAGNORDER: AMERIDELPHIA (SZALAY, in ARCHER, ED, 1982) McKENNA & BELL, 1997
ORDER: DIDELPHIMORPHIA GILL, 1872
Family: DIDELPHIDAE Gray 1821
Subfamily: ALPHADONTIDAE Marshall, Case & Woodburne, 1990
Alphadon sp
ORDER: PAUCITUBERCULATA AMEGHINO, 1894
Superfamily: CAROLOAMEGHINOIDEA Ameghino, 1901
Family: GLASBIIDAE Clemens, 1966
Glasbius twitchelli
COHORT: PLACENTALIA (OWEN, 1837) McKENNA & BELL, 1997
MAGNORDER: EPITHERIA (McKENNA, 1975) McKENNA & BELL, 1997
SUPERORDER: PREPTOTHERIA McKENNA, 1975
GRANDORDER: UNGULATOMORPHA ARCHIBALD, 1996
Family: GYPSONICTIPIDAE Van Valen, 1967
Gypsonictops sp
____________________________________________________________________________________