Tuvaella barkolensis planidorsata Community, Kyzyl-Dzhar-Chokusu sequence (Silurian of Mongolia)

Where: northwestern Mongolia, Mongolia (49.0° N, 92.0° E: paleocoordinates 33.4° N, 15.4° E)

• coordinate based on political unit

When: Wenlock (433.4 - 427.4 Ma)

Environment/lithology: coastal; lithified, gray, green sandstone and lithified siltstone

• coastal, shallow water, quiet environment with some deeper water conditions.
• Interbedded greenish-gray, fine-grained sandstone and siltstone with subordinate, sandy, Tuvaella coquina layers up to 10 cm thick.

Size class: macrofossils

Primary reference: K.H. S. Rozman. 1999. Silurian brachiopod communities of Mongolia. in A. J. Boucot and J. D. Lawson, eds., Paleocommunities - a case study from the Silurian and Lower Devonian 164-176 [M. Foote/C. Simpson]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 13190: authorized by Michael Foote, entered by Carl Simpson on 26.01.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Unstudied Lingula, pelecypods, and uncommon gastropods, ostracodes, and cephalopods.
unclassified
  -
Lingulata
 Lingulida - Lingulidae
Lingula sp. BruguiƩre 1797
Rhynchonellata
 Spiriferida - Delthyrididae
 Rhynchonellida - Rhynchotrematidae
 Orthida - Dalmanellidae
Isorthis markovskii
I. markovskii sagsaensis
 Atrypida - Anazygidae
Bivalvia
 Lucinida - Mactromyidae
Paracyclas sp. Hall 1843 clam