M304/121, Opposite Isit' Village (Cambrian of Russian Federation)

Also known as Was Isit Village, Nokhoroy Unit, Atdabanian Stage, Yakutia - Grigoryeva et. al 1988

Where: Yakutia, Russian Federation (60.8° N, 125.3° E: paleocoordinates 10.1° S, 13.5° W)

• coordinate based on political unit

• outcrop-level geographic resolution

When: Retecoscinus zegebarti zone, Nokhoroy Member (Pestrotsvet Formation), Atdabanian (521.0 - 516.0 Ma)

• Nokhoroy Unit; might be Krasnoporog formation; level 14

• group of beds-level stratigraphic resolution

Environment/lithology: lenticular, fine-grained, gray limestone

• Wavy-laminated, occasionally lenticular, gray, pale, fine-grained limestones

Size classes: mesofossils, microfossils

Preservation: original calcite, replaced with phosphate

Collection methods: bulk, chemical,

• It is unknown whether other taxa are found in the outcrop, howerver there is no reference to others in the journal article.

Primary reference: A. Y. Rozanov, V. V. Missarzhevsky, N. A. Volkova, L. G. Voronova, I. N. Krylov, B.M. Keller, I. K. Korolyuk, K. Lendzion, R. Mikhnyar, N. G. Pykhova, and A. D. Sidorov. 1969. Tommotskiu jarus i problema nizhney granisty kembriya [The Tommotian Stage and the Cambrian lower Boundary problem]. Trudy Geoligske Institut Leningrad 206:1-379 [P. Wagner/P. Wagner/P. Novack-Gottshall]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 10065: authorized by Mark Patzkowsky, entered by Phil Borkow on 27.03.2001, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Archaeocyatha
 Ajacicyathida - Ajacicyathidae
Ajacicyathus arteintervallum archaeocyath sponge
Nochoroicyathus mirabilis archaeocyath sponge
 Capsulocyathida - Coscinocyathidae
Coscinocyathus cf. rojkovi archaeocyath sponge
 Archaeocyathida - Dictyocyathidae
Dictyocyathus sp. archaeocyath sponge
 Archaeocyathida - Archaeopharetridae
Protopharetra sp. Bornemann 1884 archaeocyath sponge
Obolellata
 Obolellida -
Nochoroiella isitica n. gen. n. sp.
Nochoroiella isitica n. gen. n. sp.
Trilobita
 Redlichiida - Fallotaspididae
Fallotaspis sp. Hupé 1953 trilobite
Profallotaspis jakutensis Repina 1965 trilobite