Conchidium aracaensis Community, Early Ludlow, Central Urals (Silurian of Russian Federation)

Where: Russian Federation (56.5° N, 59.2° E: paleocoordinates 0.7° S, 12.3° E)

• coordinate based on political unit

• local area-level geographic resolution

When: Ludlow (427.4 - 423.0 Ma)

Environment/lithology: marine; shelly/skeletal, gray reef rocks

• "Shells of index species invariably disarticulated...All other forms have are attached by pedicle to hard substrate. Lateral transport. Rough water, BA 3 unit. C. a. occurs chiefly in soft substrates near the base of reef structures."
• "Occurs in light gray and pink, massive, commonly organogenic reef limestone."

Collection methods: Table 41.3 gives abundances for brachiopods from type locality.

Primary reference: V. P. Sapelnikov, O. V. Bogoyavlenskaya, L. I. Mizens and V. P. Shuysky. 1999. Silurian and Early Devonian benthic communities of the Ural-Tien Shan region. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 510-544 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23774: authorized by Michael Foote, entered by Michael Foote on 19.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Strophomenida - Strophonellidae
"Strophonella ex gr. euglypha" = Strophoprion euglypha
"Strophonella ex gr. euglypha" = Strophoprion euglypha Dalman 1828
species assignment questioned
Rhynchonellata
 Spiriferida - Reticulariidae
"Proreticularia carens" = Alaskospira
"Proreticularia carens" = Alaskospira
 Pentamerida - Gypidulidae
 Pentamerida - Clorindidae
 Pentamerida - Subrianidae
 Pentamerida - Pentameridae
 Atrypida - Karpinskiidae
 Atrypida - Atrypidae
 Atrypida - Atrypinidae
 Atrypida -
Atrypoidea linguata von Buch 1834
forma columbella and subsp. operosa
 Atrypida - Lissatrypidae
 Rhynchonellida - Trigonirhynchiidae
Ancillotoechia ex gr. ancillans Barrande 1879
species assignment questioned
 Rhynchonellida - Camarotoechiidae
Camarotoechia ex gr. delicata
genus name in quotes