NORWAY
SVALBARD ISLAND
SPITSBERGEN
STICKY KEEP FORMATION
OLENEKIAN STAGE
UPPER SCYTHIAN EPOCH
EARLY TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
MICROORDER: LIMNARCHIA YATES & WARREN, 2000
ORDER: TREMATOSAURIA PIVETEAU, 1955
Superfamily: TREMATOSAUROIDEA Save-Soderbergh, 1935
Family: LYROCEPHALISCIDAE Kuhn, 1961
*Lyrocephaliscus euri
= Lyrocephalus euriFamily: TREMATOSAURIDAE Watson, 1919
Subfamily: TERTREMINAE Schoch & Milner, 2000
Tertrema acuta
ORDER: STEREOSPONDYLOMORPHA YATES & WARREN, 2000
SUBORDER: RHINESUCHOIDEA ROMER, 1947
INFRAORDER: RHYTIDOSTEA SCHOCH & MILNER, 2000
Superfamily: RHYTIDOSTEOIDEA Huene, 1920 (sensu Cosgriff, 1965)
Family: RHYTIDOSTEIDAE Huene, 1920
Subfamily: PELTOSTEGINAE (Save-Soderbergh, 1935)
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NORWAY
SVALBARD ISLAND
SPITSBERG
SASSEN VALLEY
MT. ANDERSSON
STICKY KEEP MEMBER
KONGRESSFJELLET FORMATION
OLENEKIAN STAGE
UPPER SCYTHIAN EPOCH
EARLY TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
MICROORDER: LIMNARCHIA YATES & WARREN, 2000
ORDER: STEREOSPONDYLOMORPHA YATES & WARREN, 2000
SUBORDER: RHINESUCHOIDEA ROMER, 1947
INFRAORDER: RHYTIDOSTEA SCHOCH & MILNER, 2000
Superfamily: RHYTIDOSTEOIDEA Huene, 1920 (sensu Cosgriff, 1965)
Family: RHYTIDOSTEIDAE Huene, 1920
Subfamily: PELTOSTEGINAE (Save-Soderbergh, 1935)
*Peltostega erici
ORDER: TREMATOSAURIA PIVETEAU, 1955
Superfamily: TREMATOSAUROIDEA Save-Soderbergh, 1935
Family: PLATYSTEGIDAE Schoch & Milner, 2000
*Platystega depressa
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NORWAY
SVALBARD ISLAND
SPITSBERGEN
MT. ANDERSON AT THE INNER END OF SASSEN VALLEY
POSIDONOMYA BEDS
KONGRESSFJELLET FORMATION
STICKY KEEP MEMBER
OLENEKIAN STAGE
UPPER SCYTHIAN EPOCH
EARLY TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
MICROORDER: LIMNARCHIA YATES & WARREN, 2000
ORDER: TREMATOSAURIA PIVETEAU, 1955
Superfamily: TREMATOSAUROIDEA Save-Soderbergh, 1935
Family: WETLUGASAURIDAE Save-Soderbergh, 1935
Incertae sedis
Sassenisaurus spitzbergensis
= Cyclotosaurus? spitzbergensis
= Wetlugasaurus groenlandicus
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NORWAY
SVALBARD ISLAND
MARMIERFJELLET
STICKY KEEP FORMATION
OLENEKIAN STAGE
UPPER SCYTHIAN EPOCH
EARLY TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: DIAPSIDA OSBORN, 1904
INFRACLASS: NEODIAPSIDA BENTON, 1985
NEODIAPSIDA: INCERTAE SEDIS
OR AMNIOTA: INCERTAE SEDIS
MAGANORDER: ICHTHYOPTERYGIA BAUR, 1887 emend nova
Family: OMPHALOSAURIDAE Merriam, 1906
Omphalosaurus sp
NORWAY
SVALBARD ISLAND
SPITSBERG
EAST SIDE OF VENDOMDALEN
MILNE EDWARDSFJELLET
VIKINGHOGDA FORMATION (KONGRESSFJELLET FORMATION)
OLENEKIAN STAGE
UPPER SCYTHIAN EPOCH
EARLY TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
MICROORDER: LIMNARCHIA YATES & WARREN, 2000
ORDER: TREMATOSAURIA PIVETEAU, 1955
Superfamily: TREMATOSAUROIDEA Save-Soderbergh, 1935
Family: TREMATOSAURIDAE Watson, 1919
Subfamily: TERTREMINAE Schoch & Milner, 2000
Tertrema acuta
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NORWAY
SVALBARD ISLAND
SPITSBERG
ICE FJORD DISTRICT
MT. STICKEY KEEP
STICKY KEEP MEMBER
VIKINGHOGDA FORMATION (KONGRESSFJELLET FORMATION)
OLENEKIAN STAGE
UPPER SCYTHIAN EPOCH
EARLY TRIASSIC
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
SUBCLASS: LABYRINTHODONTIA OWEN, 1860
SUPERORDER: TEMNOSPONDYLIA ZITTEL, 1887
MICROORDER: LIMNARCHIA YATES & WARREN, 2000
ORDER: TREMATOSAURIA PIVETEAU, 1955
Superfamily: TREMATOSAUROIDEA Save-Soderbergh, 1935
Family: TREMATOSAURIDAE Watson, 1919
Subfamily: TERTREMINAE Schoch & Milner, 2000
*Tertrema acuta
Subfamily: LONCHORHYNCHINAE Save-Soderbergh, 1935
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