Torozhma (Ediacaran of Russian Federation)

Also known as might be the same as "Zimnie Gory" Martin et al. 2000 SCIENCE VOL 288, p. 841-845

Where: Arkhangelsk, Russian Federation (65.7° N, 40.2° E: paleocoordinates 60.9° S, 22.1° E)

• coordinate estimated from map

When: White Sea other zone, Yorga Formation, Ediacaran (635.0 - 541.0 Ma)

Environment/lithology: prodelta; lithified sandstone

• This assemblage comprises greenish-gray, fine-grained, thin-bedded, crossbedded, and planar-laminated sandstones. The sandstones are channel fills that appear in lenses and laterally discontinuous packages (0.3–1.8 m thick and up to 10 m wide) with convex downward bases and nearly flat upper surfaces. These lenses occur on surfaces that are characterized by numerous sand-filled scour casts. Cross-bedded sandstone units tend to consist of multistoried cross-laminations. Individual sandstone beds (0.1–0.4 m) are another element of stratification. They record strong current influence and exhibit a variety of sole marks, including load casts, chevron, drag, and flute marks, current crescents, and gutter casts.

•

Preservation: mold/impression

Primary reference: D. Grazhdankin. 2004. Patterns of distribution in the Ediacaran biotas: facies versus biogeography and evolution. Paleobiology 30(2):203-221 [M. Laflamme/M. Laflamme]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 91650: authorized by Marc Laflamme, entered by Marc Laflamme on 12.10.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Petalostroma sp.
 Rangeomorpha -
Rangea sp.
Rangea sp. Gurich 1930
Nemiana
  -
Nemiana sp.
Nemiana sp. Palij 1976
Bomakellia
  -
Bomakellia sp.
Bomakellia sp. Fedonkin 1985