Tuvaestrophia elegantula Community, Pichi-Shui Beds, W. Tuva (Silurian to of Russian Federation)

Where: Russian Federation (51.0° N, 90.0° E: paleocoordinates 35.4° N, 10.5° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Pichishui Member (Baital Formation), Ludlow to Ludlow (427.4 - 419.2 Ma)

• Ludlovian-Pridolian; Pichi-Shui beds. PJW: Sennikov, Rodina, Izokh & Obut 2015 make this the Pichishui member within the Baital formation.

• member-level stratigraphic resolution

Environment/lithology: marine; gray, green, argillaceous shale

• "[Occurrence and]...disarticulated, large, flat...valves [and other anatomical features] suggest quiet water conditions. This community occurs furthest offshore in the triad Pseudocamarotoechia ubsuensis (closest to shore), Tuvaechonetes insolitus, Tuvaestrophia elegantula."
• "Occurs in dark gray and greenish-gray, argillaceous shale..."

Size class: macrofossils

Primary reference: E. V. Vladimirskaya and N. P. Kulkov. 1999. Silurian brachiopod communities of Tuva. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 545-548 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24784: authorized by Michael Foote, entered by Michael Foote on 20.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Orthotetida - Chilidiopsidae
Coolinia cf. pecten Linnaeus 1758
 Strophomenida - Strophodontidae
"Plicostropheodonta asiatica" = Dictyostrophia (Plicostropheodonta)
"Plicostropheodonta asiatica" = Dictyostrophia (Plicostropheodonta)
 Strophomenida - Leptostrophiidae
Rhynchonellata
 Orthida - Dalmanellidae
 Atrypida - Anazygidae
 Spiriferida - Hedeinopsidae
Stenolaemata
 Trepostomata - Heterotrypidae
Heterotrypa sp. Nicholson 1879
 Trepostomata - Halloporidae
Hallopora sp. Bassler 1911
 Trepostomata - Aisenvergiidae
Eridotrypa sp. Ulrich 1893
 Life - Anthinocrinidae
Anthinocrinus sp. Stukalina 1961
columnals