Atrypoidea Community, Late Ludlow-Early Pridoli, Lithuania: Ludlow - Pridoli, Lithuania

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Herrmanina phaseola
Crinoidea
Crinoidea indet. Miller 1821
Strophomenata - Orthotetida - Chilidiopsidae
? Morinorhynchus sp. Havlicek 1965
Strophomenata - Strophomenida - Strophochonetidae
Protochonetes piltenensis Rybnikova 1967
Strophomenata - Strophomenida - Shaleriidae
Shaleria sp. Caster 1939
Rhynchonellata - Spiriferida - Spiriferidae
Spiriferidae indet. King 1846
Rhynchonellata - Athyridida - Athyrididae
? Pseudoprotathyris infantile
Rhynchonellata - Atrypida - Septatrypidae
Atrypoidea phoca
Atrypoidea prunum (Dalman 1828)
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Microsphaeridiorhynchus nucula (Sowerby 1839)
Rhynchonellata - Orthida - Dalmanellidae
Isorthis sp. Kozlowski 1929
unclassified
Bryozoa indet. Ehrenberg 1831
Gastropoda - Murchisoniina
    = Murchisonioidea indet. Koken 1896
Wagner 2023
Bivalvia - Ostreida - Pterineidae
Pterinea retroflexa
Trilobita
Trilobita indet. Walch 1771
Anthozoa - Rugosa
Rugosa indet. Milne-Edwards and Haime 1850
colonial forms
see common names

Geography
Country:Lithuania
Coordinates: 56.0° North, 24.0° East (view map)
Paleocoordinates:15.3° South, 1.1° East
Basis of coordinate:based on political unit
Geographic resolution:basin
Time
Period:Silurian
10 m.y. bin:Silurian 2
*Epoch:Late/Upper Ludlow - Early/Lower Pridoli
Key time interval:Ludlow - Pridoli
Age range of interval:427.40000 - 419.20000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Lithology and environment
Primary lithology:gray "limestone"
Secondary lithology:black marl
Includes fossils?Y
Lithology description: "Occurs in nodular, gray and dark-gray, coarse-grained, commonly stromatoporoidal limestone with interbeds of black marl belonging to the second facies zone."
Environment:marine indet.
Geology comments: "...assigned to BA 2. According to P. Lapinskas, gray, nodular limestones with black marl interbeds occur on the back side of bioherms, indicating shallow, relatively quiet water conditions. The A. Comm. occurs in dark-colored, bituminous beds, whereas the Herrmannina Comm. occurs in light colored interbeds, with both sandwiched about the bioherms. Most of the Atrypoidea are disarticulated..."
Taphonomy
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Collection method comments: Several localities combined. Table 21.11 gives abundances for brachiopods species.
Metadata
Database number:26291
Authorizer:M. Foote, P. Wagner Enterer:M. Foote, P. Wagner
Modifier:M. Foote Research group:marine invertebrate
Created:2002-10-11 10:22:30 Last modified:2006-09-15 15:14:05
Access level:the public Released:2002-10-11 10:22:30
Creative Commons license:CC BY
Reference information

Primary reference:

6146. P. Musteikis and J. J. Paskevicius. 1999. Brachiopod communities of the Lithuanian Silurian. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian 305-326 [M. Foote/M. Foote/P. Wagner]

Secondary references:

9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]