Aktasty River, locality 10, 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: Aktasty Formation, Artinskian (290.1 - 279.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Collected by V.E. Ruzhentsev

Primary reference: V. E. Ruzhentsev. 1956. Nizhnepermskie ammonity yuzhnogo Urala II. Ammonity Artinskogo yarusa. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 60:1-271 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125114: authorized by Matthew Clapham, entered by Matthew Clapham on 04.03.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Prolecanitida - Pronoritidae
Neopronorites skvorzovi
Neopronorites skvorzovi Tchernow 1907 ammonite
 Prolecanitida - Medlicottiidae
"Aktubinskia notabilis n. sp." = Sicanites notabilis, Medlicottia intermedia, Artinskia artiensis
"Aktubinskia notabilis n. sp." = Sicanites notabilis Ruzhentsev 1940 ammonite
Medlicottia intermedia Ruzhentsev 1949 ammonite
Artinskia artiensis Grünewaldt 1860 ammonite
 Prolecanitida - Daraelitidae
Daraelites elegans
Daraelites elegans Tchernow 1907 ammonite
 Goniatitida - Somoholitidae
Neoshumardites triceps n. sp.
Neoshumardites triceps n. sp. Ruzhentsev 1936 ammonite
 Goniatitida - Marathonitidae
Kargalites typicus
Kargalites typicus Ruzhentsev 1933 ammonite
 Goniatitida - Agathiceratidae
Agathiceras uralicum
Agathiceras uralicum Karpinsky 1874 ammonite
 Goniatitida - Metalegoceratidae
Eothinites kargalensis, Metalegoceras sp., Metalegoceras rotundatum n. sp.
Eothinites kargalensis Ruzhentsev 1933 ammonite
2 ssp. aktubensis, 39 ssp. kargalensis
Metalegoceras sp. Schindewolf 1931 ammonite
Metalegoceras rotundatum n. sp. Ruzhentsev 1956 ammonite
 Goniatitida - Paragastrioceratidae
Paragastrioceras artolobatum, Paragastrioceras kirghizorum, Paragastrioceras tchernowi, Uraloceras complanatum, Uraloceras involutum
Paragastrioceras artolobatum Ruzhentsev 1956 ammonite
Paragastrioceras kirghizorum Voinova 1934 ammonite
Paragastrioceras tchernowi Ruzhentsev 1956 ammonite
Uraloceras complanatum Voinova 1934 ammonite
Uraloceras involutum Voinova 1934 ammonite
 Goniatitida - Popanoceratidae
Popanoceras tschernowi, Popanoceras congregale n. sp.
Popanoceras tschernowi Maximova 1935 ammonite
Popanoceras congregale n. sp. Ruzhentsev 1940 ammonite
 Goniatitida - Thalassoceratidae
Thalassoceras gemmellaroi
Thalassoceras gemmellaroi Karpinsky 1889 ammonite