Taukha terrane (Dalnegorsk area) (Triassic of Russian Federation)

Where: Primorsky, Russian Federation (45.1° N, 135.2° E: paleocoordinates 49.3° N, 134.4° E)

When: Late/Upper Triassic (237.0 - 201.4 Ma)

• The age of this facies is defined as early-middle Norian on the basis of foraminifers

Environment/lithology: lagoonal or restricted shallow subtidal; lithified wackestone

• Involutinids-megalodontids wackestone to rudstone facies interpreted as lagoonal limestones
• Taukha terrane (Dalnegorsk area) is made of Norian atoll-type carbonates from the Panthalassa ocean (Peyrotty et al. 2020). The sedimentology and biostratigraphy of the limestone have been studied and described in detail by Peyrotty et al. (2020). The algae presented in this paper have been observed in involutinids-megalodontids wackestone to rudstone facies interpreted as lagoonal limestones. Algae are associated with megalodontids, involutinids (dominated by Parvalamella friedli (Kristan-Tollmann, 1962)), gastropods and undetermined calcimicrobes. The age of this facies is defined as early-middle Norian on the basis of foraminifers. According to Kojima (1989), the Taukha terrane represents the northern extension of the SAC but the here-described algae differ, possibly suggesting a different origin or depositional environment of the Upper Triassic shallow-water limestone from Japan and Russia

Size class: mesofossils

Preservation: original calcite, replaced with calcite

Collection methods: peel or thin section,

Primary reference: I. I. Bucur, S. Rigaud, N. Del Piero, A. Fucelli, E. Heerwagen, C. Peybernes, G. Peyrotty, C. Verard, J. Chablais and R. Martini. 2020. Upper Triassic calcareous algae from the Panthalassa Ocean. Rivista Italiana di Paleontologia e Stratigrafia 126(2):499-540 [W. Kiessling/T. Jujihara]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 234278: authorized by Wolfgang Kiessling, entered by Toshiro Jujihara on 25.03.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Patruliuspora pacifica n. sp.
Patruliuspora pacifica n. sp.
WH-259 [MHNG-GEPI-2020-0024]
Rhodophyceae
  - Gymnocodiaceae
Permocalculus sp.
Permocalculus sp. Elliott 1955
Chlorophyceae
 Dasycladales - Dasycladaceae
Gyroporella sp.
Gyroporella sp. Gümbel 1872