EUROPEAN RUSSIA
ARCHANGEL PROVINCE
KIMJA RIVER
LOWER PART OF KAZANIA STAGE
ZONE III
EARLY PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
ORDER: PELYCOSAURIA COPE, 1878
SUBORDER: EUPELYCOSAURIA KEMP, 1982
INFRAORDER: OPHIACHODONTIA NOVA
Family: VARANOPSEIDAE Romer & Price, 1940
Subfamily: MYCTEROSAURINAE Reisz & Berman, 2001
= Family: MESENOSAURIDAE*Mesenosaurus romeri
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EUROPEAN RUSSIA
ARKHANGELSK REGION
MEZENSKII DISTRICT
BELOKUR’E LOCALITY
KRASNOSHCHEL’YA FORMATION
URZHUMIAN HORIZON
LOWER TATARIAN AGE
CAPITANIAN STAGE
MIDDLE ZECHSTEIN EPOCH
LATE MIDDLE PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
SUPERORDER: THERASPIDA BROOM, 1905
ORDER: EOTHERIODONTIA OLSON, 1962
Incertae sedis
Family: NIKKASAURIDAE Ivakhnenko, 2000
Nikkasaurus tatarinovi
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EUROPEAN RUSSIA
ARKHANGEL'SK REGION
MEZEN DISTRICT
KIMJA RIVER
ZONE 111
RED MARLS HORIZON
LATE PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: PARAREPTILIA OLSON 1947
INFRACLASS: SAUROPSIDA HUXLEY, 1864
ORDER: PROCOLOPHONOMORPHA ROMER, 1964
SUBORDER: PROCOLPHOMORPHA SEELEY, 1888
Family: NYCTIPHRURETIDAE Efremov, 1938
*Nyctiphruretus acudens
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EUROPEAN RUSSIA
ARCHANGELSKY DISTRICT
LESHUKONSKOE
UST-VASHKA
LATE PERMIAN
STEM: TETRAPODA GOODRICH, 1930
SUPERCLASS: AMNIOTA HAECKEL, 1866
CLASS: REPTILIA LAURENTI, 1768
SUBCLASS: SYNAPSIDA OSBORN, 1903
SUPERORDER: THERASPIDA BROOM, 1905
ORDER: EOTHERIODONTIA OLSON, 1962
SUBORDER: EOTITANOSUCHIA BOONSTRA, 1963
INFRAORDER: BIARMOSUCHIA SIGOGNEAU-RUSSELL, 1989
Family: BIARMOSUCHIDAE Olsen, 1962
Biarmosuchus tagax
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EUROPEAN RUSSIA
ARKHANGEL'SK REGION
MEZEN DISTRICT
KIMJA RIVER
ZONE 111
RED MARLS HORIZON
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: SEYMOURIOIDEA Williston, 1911 (sensu Tatarinov, 1971)
Family: NYCTIPHRURETIDAE Efremov, 1938
*Nyctiphruretus acudens
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EUROPEAN RUSSIA
ARKHANGELSK REGION
ZAVRAZHYE
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: CHRONIOSUCHIDA TATARINOV, 1971
Family: CHRONIOSUCHIDAE Vjuschkov, 1957
Chroniosuchus licharevi
= Jugosuchus licharevi
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