EASTERN EUROPEAN RUSSIA
VOLGA REGION
MARI E1 REPUBLIC
GORNOMARIYSKY DISTRICT
SUNDYR-1 LOCALITY
LOWER PUTYATINIAN REGIONAL SUBSTATE
TATARIAN SERIES
UPPER SEVERODVINIAN SUBSTAGE
SEVERODVINIAN HORIZON
LOWERMOST PART OF THE UPPER TATARIAN AGE
LOPINGIAN SUBEPOCH
UPPER ZECHSTEIN EPOCH
LATE PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
NEOTHERAPSIDA RUBIDGE & SIDOR, 2001
INFRACLASS: THERIODONTIA EMEND OWEN, 1881
ORDER: EUTHERIODONTIA EMEND RUBIDGE & SIDOR, 2001
Family: LYCOSAURIDAE Broom, 1918
* Gorynychus sundyrensis
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EUROPEAN RUSSIA
VOLGA PROVINCE
VELIKOUSTYUGSKII DISTRICT
UST’E STREL’NY LOCALITY
PROELGINIA PERMIANA ZONE
UPPER TATARIAN AGE
LOPINGIAN SUBEPOCH
UPPER ZECHSTEIN EPOCH
LATE PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: AMPHIBIA LINNAEUS, 1758
NEOTETRAPODA
SUBCLASS: REPTILIOMORPHA SAVE-SODERBERGH, 1934
ORDER: SEYMOURIAMORPHA WATSON, 1917
SUBORDER: SEYMOURIDA TATARINOV, 1971
Superfamily: KOTLASSOIDEA Romer, 1933 (sensu Vjuschkov, 1957)
Family: KOTLASSIDAE Romer, 1933
Subfamily: KOTLASSIINAE Romer, 1933
Microphon exiguus
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
SUPERORDER: THERASPIDA BROOM, 1905
GRANDORDER: EUTHERAPSIDA
MICRORDER: NEOTHERAPSIDA
ORDER: THERIODONTIA OWEN, 1881
SUBORDER: GORGONOPIA SEELEY, 1895
Superfamily: GORGONOPIOIDEA Lydekker, 1890
Family: GORGONOPIDAE Lydekker, 1890
Subfamily: CYNARIOPINAE Watson & Romer, 1956
*Suchogorgon golubevi
INFRAORDER: ICTIDORHINIDA IVKHNENKO, 2003
Family: ICTIDORHINIDAE Broom, 1932
*Ustia atra
ORDER: ANOMODONTIA WATSON & ROMER, 1956
SUBORDER: DROMASAURIA BROOM, 1907
Superfamily: DROMASAURIDAE Broom, 1907
Family: GALEOPIDAE Broom, 1912
Suminia sp
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