Chernokhrebetnaya River, unit 9 talus, eastern Taimyr (Triassic of Russian Federation)

Where: Russian Federation (75.0° N, 111.9° E: paleocoordinates 59.8° N, 19.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Parasibirites grambergi ammonoid zone, Spathian (251.3 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, nodular mudstone

• Relatively uniform mudstones and siltstones with horizons of calcareous nodules, yielding well-preserved ammonoids

Size class: macrofossils

Collected by E. Sobolev

• Repository: Institute of Ecology of the Lithuanian Academy of Sciences, Vilnius

Primary reference: A. Dagys. 1997. A new late Olenekian (Triassic) ammonoid of low palaeolatitude affinity from Arctic Asia (Eastern Taimyr). Palaeontologische Zeitschrift 71:217-220 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 139246: authorized by Matthew Clapham, entered by Matthew Clapham on 09.02.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ceratitida - Byrrangoceratidae
Byrrangoceras taimyrense n. gen. n. sp.
Byrrangoceras taimyrense n. gen. n. sp. Dagys 1997 ceratite
 Ceratitida - Sibiritidae
Parasibirites grambergi Popov 1961 ceratite
Parasibirites mixtus Popov 1962 ceratite
Sibirites elegans Dagis and Ermakova 1988 ceratite