Lena River, Ulakhan-Aldyarkhai section (UA2), Nevadella zone (Cambrian of Russian Federation)

Where: Yakutiya, Russian Federation (71.6° N, 127.3° E: paleocoordinates 23.8° S, 15.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Nevadella trilobite zone, middle Member (Tyuser Formation), Tommotian (525.5 - 521.0 Ma)

• uppermost Tommotian

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified carbonate

• archaeocyath-microbial bioherms

Size class: macrofossils

Collection methods: peel or thin section

Primary reference: E. Bushuev, E. Goryaeva, and V. Pereladov. 2014. New discoveries of the oldest trilobites Profallotaspis and Nevadella in the northeastern Siberian Platform, Russia. Bulletin of Geosciences 89(2):347-364 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 179712: authorized by Mark Uhen, entered by Mark Uhen on 27.06.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Redlichiida - Nevadiidae
Nevadella sp. Raw 1936 trilobite
Nevadella effusa Repina 1974 trilobite
 Redlichiida -
Artiopoda
 Agnostida - Hebediscidae
"Pagetiellus cf. anabarus" = Delgadella, "Pagetiellus sp." = Delgadella, "Pagetiellus sakhaicus" = Delgadella
"Pagetiellus cf. anabarus" = Delgadella
"Pagetiellus sp." = Delgadella Walcott 1908
"Pagetiellus sakhaicus" = Delgadella