Where: Russian Federation (60.3° N, 149.3° E: paleocoordinates 81.2° N, 139.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Pinacoceras verchojanicum ammonoid zone, Lacian (221.5 - 215.6 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; nodular, gray, silty, sandy mudstone
Size class: macrofossils
Primary reference: Y.u. M. Bychkov. 1977. [Sections of the Trias from the upper River Kolym and northern Priochotya]. [Transactions of the Institute of Geology and Geophysics, Siberian Branch of the Academy of Sciences of the USSR] 344:51-82 [A. Dunhill/B. Allen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 214807: authorized by Alex Dunhill, entered by Bethany Allen on 16.10.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
| Cephalopoda | |
"Argosirenites nelgehensis" = Pterosirenites nelgehensis, "Paratibetites seimkanensis" = Pterosirenites seimkanensis, Pamphagosirenites ex gr. pamphagus
"Argosirenites nelgehensis" = Pterosirenites nelgehensis Arkhipov 1974 ceratite
"Paratibetites seimkanensis" = Pterosirenites seimkanensis Bychkov 1974 ceratite
Pamphagosirenites ex gr. pamphagus Dittmar 1866 ceratite | |
|
Argosirenites obruchevi ceratite
Argosirenites cf. nabeschi ceratite
Argosirenites kiparisovae ceratite
? Paratibetites sp. von Mojsisovics 1896 ceratite | |
|
Pinacoceras verchojanicum Archipov 1974 ceratite | |
|
Proclydonautilus aff. natosini McLearn 1946 nautiloid | |
| Bivalvia | |
|
| |
|
Chlamys mojsisovicsi Kobayashi and Ichikawa 1949 scallop | |
|
Oxytoma zitteli Teller 1886 scallop
Oxytoma mojsisovicsi Teller 1886 scallop
Oxytoma czekanowskii Teller 1886 scallop | |
Lima transversa, "Lima cf. naumanni" = Pseudolimea naumanni
Lima transversa Polubotko 1966 file clam
"Lima cf. naumanni" = Pseudolimea naumanni Kobayashi and Ichikawa 1951 file clam | |
|
Halobia aotii Kobayashi and Ichikawa 1949 oyster | |
|
Cardinia cf. ovula clam | |
|
Palaeopharus cf. buriji Kiparisova 1954 clam | |
|
Ochotomya anmandykanensis Tuchkov 1966 clam | |
| Rhynchonellata | |
|
Sakawairhynchia olenekensis Dagys 1965 | |
|
Aulacothyroides ochoticus Dagys 1977 | |
|
Yanospira bychkovi Dagys 1977 | |
|
Spiriferinoides yeharai Tokuyama 1957 | |