Anabar Bay, section 1A, bed 19 (Cretaceous of Russian Federation)

Where: Russian Federation (73.4° N, 113.8° E)

• Paleocoordinates: 71.6° N, 78.5° E (Wright 2013)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ramulicosta ammonoid zone, Early/Lower Valanginian (137.1 - 132.6 Ma)

• Ramulicosta subzone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Collected by Bogomolov in 1980

Primary reference: Y. I. Bogomolov. 1989. Poliptikhity (Ammonity) i biostratigrafiya boreal'nogo Valanzhina. Akademiya Nauk SSSR, Sibirskoe Otdelenie Trudy Instituta Geologii I Geofiziki 696:1-199 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 189638: authorized by Matthew Clapham, entered by Matthew Clapham on 03.11.2017

Creative Commons license: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Pholadomyida - Pholadomyidae
Homomya sp.
Homomya sp. Agassiz 1843 clam
 Pectinida - Buchiidae
Buchia sublaevis
 Pectinida - Entoliidae
Entolium nummulare
 Ostreida - Pinnidae
Pinna sp.
Pinna sp. Linnaeus 1758 oyster
 Mytilida - Crenellidae
Musculus cf. sibiricus
Gastropoda
 Heterostropha - Gordenellidae
"Costacolpus cf. septentrionalis" = Turritelloidea
"Costacolpus cf. septentrionalis" = Turritelloidea snail
Cephalopoda
 Phylloceratida - Phylloceratidae
Phylloceratidae indet.
Phylloceratidae indet. Zittel 1884 ammonite
 Ammonitida - Polyptychitidae
"Siberites ramulicosta" = Polyptychites (Polyptychites) ramulicosta, "Siberites rectangulatus" = Polyptychites (Primitiviptychites) rectangulatus, Temnoptychites (Temnoptychites) sp.
"Siberites ramulicosta" = Polyptychites (Polyptychites) ramulicosta Pavlow 1892 ammonite
"Siberites rectangulatus" = Polyptychites (Primitiviptychites) rectangulatus Bogoslowsky 1902 ammonite