Abrek Bay AB1022 (Triassic of Russian Federation)

Where: Russian Federation (42.9° N, 132.4° E: paleocoordinates 43.6° N, 110.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Neospathodus ex gr waageni-N. novaehollandiae conodont zone, Zhitkov Formation, Smithian (251.3 - 247.2 Ma)

• Clypeoceras timorense ammonoid zone

• bed-level stratigraphic resolution

Environment/lithology: submarine fan; lithified, concretionary mudstone

• Laminated mudstone with calcareous concretions

Size class: macrofossils

Primary reference: Y. Shigeta, Y. D. Zakharov, H. Maeda and A. M. Popov. 2009. The Lower Triassic System in the Abrek Bay area, south Primorye, Russia. National Museum of Nature and Science Monographs 38:1-218 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90221: authorized by Matthew Clapham, entered by Matthew Clapham on 14.07.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

 Holocrinida - Holocrinidae
Holocrinus sp. Wachsmuth and Springer 1886 Sea lily
 Ozarkodinida - Gondolellidae
Neospathodus novaehollandiae McTavish 1973 conodont
Neospathodus pakistanensis Sweet 1970 conodont
Neospathodus aff. posterolongatus Zhao and Orchard 2007 conodont
Neospathodus concavus Zhao and Orchard 2007 conodont
 Euselachii -
Euselachii indet. elasmobranch
 Hybodontiformes -
Lissodus cf. cristatus Delsate and Duffin 1999 elasmobranch
 Hybodontiformes - Acrodontidae
Acrodus cf. cuneocostatus Cuny et al. 2001 elasmobranch
 Hybodontiformes - Polyacrodontidae
Polyacrodus sp. Jaekel 1889 elasmobranch
 Ceratitida - Hedenstroemiidae
Pseudosageceras multilobatum Noetling 1905 ceratite
 Ceratitida - Arctoceratidae
Arctoceras septentrionale Diener 1895 ceratite
 Ceratitida - Proptychitidae
Clypeoceras timorense Wanner 1911 ceratite
 Ceratitida - Paranannitidae
Prosphingitoides sp. Shevyrev 1995 ceratite
 Orthocerida - Orthoceratidae
Trematoceras subcampanile Kiparisova 1954
 Cardiida - Anthracosiidae
Unionites aff. subrectus Bittner 1901 clam
 Rhynchonellida - Rhynchonellidae
Abrekia sulcata Dagys 1974