Mutationella podolica-Leptotrypella semiramosa Comm.,SW Byelorussia (Devonian of Belarus)

Where: Belarus (52.0° N, 24.0° E: paleocoordinates 17.2° S, 6.6° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Lochkovian (419.2 - 410.8 Ma)

• "A Lochkovian analog of the Podolian Chortkov Horizon." Dubits and Orchov Formations.

Environment/lithology: marine; gray, green marl and gray siltstone

• "The entire sequence clearly reflects up section regression of the marine basin."
• "The upper portion of the Dubits Formation (416.5 to 432.0 m) is composed of the same greenish-grey marls and shales, with laminae and lenses of marlstone, as its lower parts but fossils are less abundant. Up section their quantity gradually decreases. The Orchov Formation is made up of interbedded greenish gray marls and shales with intercalations of siltstones, sandstones, and dolomites. Fossils are practically absent."

Collection methods: core

• Abundances given for dominant brachiopods and bryozoans.

Primary reference: V. I. Pushkin and T. L. Modzalevskaya. 1999. Silurian and Lower Devonian brachiopod and bryozoan communities of southwestern Byelorussia. In A. J. Boucot and J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 496-509 [M. Foote/M. Foote/M. Foote]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 23692: authorized by Michael Foote, entered by Michael Foote on 18.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Lingulata
 Lingulida - Lingulidae
Strophomenata
 Strophomenida - Amphistrophiidae
 Orthotetida - Chilidiopsidae
"Iridostrophia praeumbracula" = Iridistrophia
"Iridostrophia praeumbracula" = Iridistrophia
Rhynchonellata
 Spiriferida - Delthyrididae
 Terebratulida - Meganterididae
Stenolaemata
 Trepostomida - Atactotoechidae
 Trepostomida - Araxoporidae
 Cystoporata - Fistuliporidae
Fistulipora compacta Crockford 1944
 Trepostomata - Heterotrypidae
"Lioclema netshlavense" = Leioclema, "Lioclema sp." = Leioclema, Leptotrypa sp.
"Lioclema netshlavense" = Leioclema
"Lioclema sp." = Leioclema Ulrich 1882
Leptotrypa sp. Ulrich 1883
 Lophophorata -
Tentaculitida indet. Ljaschenko 1955
Hyolitha
  -
Hyolitha indet. Marek 1963
Bivalvia
  -
"Pelecypoda indet." = Bivalvia
"Pelecypoda indet." = Bivalvia Linnaeus 1758 clam
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
debris