Aktasty River, eastern limestone ridge, Aktastinian, Aktyubinsk Region (Permian of Kazakhstan)

Where: Kazakhstan (50.4° N, 57.6° E: paleocoordinates 23.5° N, 49.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Artinskian (290.1 - 279.3 Ma)

• Lower part of the Aktastinian

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Collected by V.E. Ruzhentsev, I.V. Khvorova

Primary reference: V. E. Ruzhentsev and V. N. Shimanskiy. 1954. Nizhnepermskie svernutye i sognutye Nautiloidei yuzhnogo Urala. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 50:1-150 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116788: authorized by Matthew Clapham, entered by Matthew Clapham on 12.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Bactritida - Bactritidae
Hemibactrites ellipsoidalis2 Shimanskiy 1954
 Prolecanitida - Medlicottiidae
Artinskia artiensis1 Grünewaldt 1860 ammonite
 Prolecanitida - Pronoritidae
Neopronorites skvorzovi1 Tchernow 1907 ammonite
 Goniatitida - Metalegoceratidae
Eothinites kargalensis1 Ruzhentsev 1933 ammonite
19 ssp. aktubensis, 2 ssp. kargalensis
 Goniatitida - Paragastrioceratidae
Uraloceras involutum1 Voinova 1934 ammonite
Paragastrioceras kirghizorum1 Voinova 1934 ammonite
 Goniatitida - Thalassoceratidae
Thalassoceras gemmellaroi1 Karpinsky 1889 ammonite
 Goniatitida - Agathiceratidae
Agathiceras uralicum1 Karpinsky 1874 ammonite
 Goniatitida - Adrianitidae
Crimites subkrotowi1 Ruzhentsev 1938 ammonite
 Goniatitida - Marathonitidae
"Marathonites (Almites) invariabilis" = Almites invariabilis1
"Marathonites (Almites) invariabilis" = Almites invariabilis1 Ruzhentsev 1933 ammonite
 Nautilida - Tainoceratidae
Metacoceras parartiense Ruzhentsev and Shimanskiy 1954 nautiloid
 Nautilida - Trigonoceratidae
Apogonoceras remotum n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Neothrincoceras soshkinae n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
 Nautilida - Grypoceratidae
Parastenopoceras khvorovae n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
 Nautilida - Scyphoceratidae
Mariceras ferum n. gen. n. sp., Venatoroceras verae n. gen. n. sp., Scyphoceras dionysi n. gen. n. sp., Scyphoceras ellipticum n. sp.
Mariceras ferum n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Venatoroceras verae n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Scyphoceras dionysi n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Scyphoceras ellipticum n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
 Nautilida - Aktubonautilidae
Aktubonautilus eruciformis n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
 Nautilida - Mosquoceratidae
Articheilus luxuriosum n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Mosquoceras jakowlewi n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
 Nautilida - Rhiphaeoceratidae
Rhiphaeonautilus curticostatus n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Rhiphaeoceras venustum n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Pararhiphaeoceras tastubense Kruglov 1928 nautiloid
Pararhiphaeoceras aktastense n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Pararhiphaeoceras incallidum n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Sholakoceras privum n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
 Nautilida - Liroceratidae
Hemiliroceras inflatum n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Liroceras sp. Teichert 1940 nautiloid
Condraoceras ellipsoidale n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
 Nautilida - Dentoceratidae
Dentoceras magnum n. gen. n. sp., Dentoceras latum n. sp.
Dentoceras magnum n. gen. n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid
Dentoceras latum n. sp. Ruzhentsev and Shimanskiy 1954 nautiloid