Yatriya River-3 (Cretaceous of Russian Federation)

Where: Russian Federation (64.5° N, 57.0° E: paleocoordinates 59.6° N, 53.1° E)

• small collection-level geographic resolution

When: Surites analogus zone, Berriasian (145.0 - 139.8 Ma)

Environment/lithology: marine; gray, argillaceous, sandy siltstone

• lithology is a sandy, clayey siltstone with a massive texture and differs from the rocks below in the almost total absence of gravel grains

Size class: macrofossils

Primary reference: V. N. Saks, ed. 1975. The Jurassic-Cretaceous Boundary and the Berriasian Stage in the Boreal Realm. 1-319 [M. Patzkowsky/K. Layou/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2490: authorized by Mark Patzkowsky, entered by Karen Layou on 06.07.1999, edited by Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Rhynchonellidae
Uralorhynchia sp. Dagys 1968
 Terebratulida - Boreiothyrididae
Bivalvia
 Mytilida - Mytilidae
Modiolus sp. Lamarck 1801 mussel
 Pectinida - Pectinoidae
Camptonectes sp. Meek 1864 scallop
cf. Pseudamussium bojarkaensis scallop
originally entered as "Pseudamussium cf. bojarkaensis"
 Pectinida - Entoliidae
 Pectinida - Limidae
cf. Plagiostoma incrassata file clam
originally entered as "Plagiostoma cf. incrassata"
"aff. Limatula consobrina" = Lima (Limatula) consobrina d'Orbigny 1845 file clam
originally entered as "Limatula aff. consobrina"
 Pectinida - Buchiidae
Buchia uncitoides Pavlow 1907 scallop
Buchia terebratuloides Lahusen 1888 scallop
Buchia volgensis Lahusen 1888 scallop
Buchia fischeriana d'Orbigny 1845 scallop
Buchia okensis Pavlow 1907 scallop
 Pectinida - Oxytomidae
 Ostreida - Gryphaeidae
 Pholadomyida - Pholadomyidae
Pholadomya dp. Sowerby 1823 clam
 Pholadida - Pleuromyidae
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
Cephalopoda
 Ammonitida - Polyptychitidae
Surites cf. spasskensis ammonite
originally entered as "Surites cf. spasskensis"
Surites sp. Sazonov 1951 ammonite
originally entered as "Surites sp."
 Belemnitida -
 Belemnitida - Belemnitidae
aff. Cylindroteuthis subconoidea belemnite
originally entered as "Cylindroteuthis aff. subconoidea"
Cylindroteuthis porrectiformis Anderson 1945 belemnite
 Belemnitida - Cylindroteuthididae