Genus: Dromomeron IRMIS, NESBITT, PADIAN, SMITH, TURNER, WOODY & DOWNS,
2007
Etymology: Greek, dromas, "running" and Greek, meros, "femur."
Species: romeri IRMIS, NESBITT, PADIAN, SMITH, TURNER, WOODY & DOWNS,
2007
Etymology: In honor of Alfred Sherwood Romer, who first described
dinosaur
precursors from Argentina, including Lagerpeton.
Holotype: GR 218
Locality: Site 3, Hayden Quarry (HQ), Ghost Ranch, Rio Arriba County, New Mexico.
Horizon: Petrified Forest Formation, Chinle Group.
(Petrified Forest Member, Chinle Formation).
Biostratigraphy:
Age: Revueltian, Early Norian Substage, Early Norian Epoch, Middle Late Triassic Epoch, Late Triassic.
Material: Complete left femur.
Paratypes:
GR 219: Right femur.
GR 220: Left tibia.
GR 221: Partial left femur.
GR 222: Left tibia.
GR 223: A complete astragalocalcaneum.
GR 234: A nearly complete femur.
NESBITT, IRMIS, PARKER, SMITH, TURNER & ROWE, 2009
GR 238: Partial articualted skeleton.
GR 239: Isolated right tibia (enemial crest crushed).
AMNH FR 2721: Head of tibia.
Note: Von HUENE “Coelophysis longicollis or C. bauri. proximal extremity
of right (?) tibia of C. bauri or of a big metatarsal of C.
longicollis.
AMNH FR 30648: Distal portion of a right tibia.
AMNH FR 30649: Distal portion of right tibia.
Dromomeron romeri; A-D) holotype GR 218 femur; A) anterior; B) posterior; C) proximal and D) distal views: E-H) Gr 222 tibia; E) anterior; F) laterial; G) proximal and H) distal views; I-K) GR 223 astragalocalcaneum; I) proximal; J) anterior and K) posterior view (after IRMIS, NESBITT, PADIAN, SMITH, TURNER, WOODY & DOWNS, 2007.
Referred material:
Locality: NMMNH locality-3845, Snyder Quarry, Near Ghost Ranch, Rio Arriba County, New Mexico.
Horizon: Petrified Forest Formation, Chinle Group.
Biostratigraphy:
Age: Revueltian, Early Norian Substage, Early Norian Epoch, Middle Late Triassic Epoch, Late Triassic.
Material:
NMMNH P-35379: Astragalocalcaneum.
KIRBY, 1989/MARSH, 2018
= Ceratosauria KIRBY, 1989,
Locality: MNA 791 (795?), exposed along Ward Terrace, east of the Little Colorado River and west of the Moenkopi Plateau, within an area bonded by Moenkopi Wash to the north and the Tloi Eechii Cliffs to the south, Billingsley Southeast, Badger Spring, Northern Arizona.
Horizon: Owl Rock Formation, Upper Chinle Group.
Biostratigraphy:
Age: Late Carnian Stage, Late Triassic Epoch, Late Triassic.
Material:
MNA V7237: Astragalus.
MARTZ & SMALL, 2019Locality: DMNH locality 1306, Main Elk Creek, Eagle Basin, near New Castle, Eagle County, Northern Colorado.
Horizon: Chinle Formation.
Biostratigraphy:
Age: Norian/Rhaetian Stage, Late Triassic Epoch, Late Triassic.
Material:
DNMN EPV.54826: Proximal left femur.
DMNH EPV.29956: Complete right humerus.
DMNH EPV.63873: Proximal right femur.
MUELLER, HUTTENLOCKER, SMALL, PINTO, DEAN-WALLACE & CHATTERJEE, 2022
Locality: Boren Quarry (MOTT VPL 3869), Garza County, Texas.
Horizon: Tecovas Formation, Dockum Group.
Biostratigraphy: Otischalkian LVF.
Age: Early Norian Stage, Middle Late Triassic Epoch, Middle Late Triassic.
Material:
Number: Not given:
SANGÜL, 2016
Locality "Lower Sunday Canyon" Site, eastern end of the Little Fox Canyon, Palo Duro Canyon State Park, Randall County, Texas.
Horizon: Lower Tecovas Formation, Dockum Group.
Biostratigraphy:
Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
WTAMU-V-8301: Distal end of right femur.
Locality: Headquarters South Locality (MOTT 3898), Garza County, Texas.
Horizon: Lower Tecovas Formation, Dockum Group.
Biostratigraphy:
Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
TTU-P12537X: Proximal end of right tibia.
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Species: gregorii NESBITT, IRMIS, PARKER, SMITH, TURNER & ROWE,
2009
Etymology: In honor of the late Joseph T. Gregory, who studied and described
many of the fossil vertebrates from the Otis Chalk quarries.
Holotype: TMM 31100-1306
Locality: Otis Chalk Quarry 3 (TMM loality 31100), near Otis Chalk, Howard County, Texas.
Locality: Colorado City Formation, Upper Dockum Group.
Biostratigraphy:
Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Complete right femur.
Paratypes:
TMM 31100-464, -1308, -1234, -764: Right femora.
TMM 31100-278: Right tibia.
TMM 31100-1324: Left tibia.
Referred material:
TMM 31100-82: Left femur.
TMM 31100-101: Distal portion of right femur.
TMM 31100-199: Left tibia.
TMM 31100-1314: Left tibia.
TMM 31100-1321: Proximal portion of right tibia.
TMM 31100-1321: Left tibia.
TMM 31185-99: Left tibia.
TMM 31185-100: Distal portion of a left tibia.
Locality: Placerias quarry (NMMNH locality 858, UCMP A269, MNA 207C), Big Hollow Wash near Romero Springs, a small valley 6 1/2 miles (approximately 10.4 km) S 65"W of St. Johns, Apache County, Arizona. (Located 0.3 miles northwest of Romero Springs at approximately Long. 109'28'W and lat. 34"27'N on the USGS St. Johns quadrangle of 1921.)
Horizon: Lower Bluewater Creek Formation (Lower Petrified Forest Formation).
Biostratigraphy:
Age: Otischalkian, Late Triassic (LUCAS, HECKET & HUNT, 1995) (Old Lower Petrified Forest Member, Chinle Formation, Adamanian, Late Triassic.)
Material:
UCMP 25815: Distal portion of left femur.
LESSNER, PARKER, MARSH, NESBITT, IRMIS & MUELLER, 2018
Locality: Boren Quarry (MOTT locality 3869), Garza County, Texas.
Horizon: Lower Cooper Canyon Formation.
Biostratigraphy:
Age: Adamanian, Norian Stage, Late Triassic Epoch, Late Triassic.
Material:
TTU-P 1186: Distal end of left femur.
SANGÜL, 2016
Locality: Miller Quarry (Post Quarry MOTT VPL 3624, TUPP, DMNH Locality 1160), 2 km due south of Cooper Creek on the R. C. Miller's Ranch, 8 km southeast of Post, Lat. 33°31’17”N, Long. 101°18’54"W, 9 miles southeast of Post Garza County, West Texas.
Horizon: Upper part, Lower Cooper Canyon Member, Dockum Formation.
Biostratigraphy:
Age: Early Norian Epoch, Middle Late Triassic Epoch, Late Triassic.
Material:
TTU-P18331: Proximal end of left femur.
TTU-P20046: Distal end of left femur.
LESSNER, PARKER, MARSH, NESBITT, IRMIS & MUELLER, 2018
TTU-P 11282:
Locality "Lower Sunday Canyon" Site, eastern end of the Little Fox Canyon, Palo Duro Canyon State Park, Randall County, Texas.
Horizon: Lower Tecovas Formation, Dockum Group.
Biostratigraphy:
Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material:
WTAMU-V-8302: Proximal end of right femur.
WTAMU-V-8303: Proximal end of right tibia.
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Species: gigas MARTINEZ, APALDETTI, CORREA, & ABELIN, 2015
Etymology: Greek, gigas, 'giant'; in allusion to the large size of
Dromomeron gigas sp. nov. compared with the other lagerpetid
dinosauromorphs.
Holotype: PVSJ 898
Locality: "Quebrada del Puma" Locality, Caucete Department, San Juan Province, Argentina.
Horizon: Quebrada del Barro Formation.
Biostratigraphy:
Age: Norian Epoch, Middle Late Triassic Epoch, Late Triassic.
Material: Partial left femur.