Eke Beds Brachiopods: Ludfordian, Sweden

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chileata - Dictyonellida - Eichwaldiidae
Dictyonella capewellii (Davidson 1848)
recombined as Eodictyonella capewellii
Strophomenata - Orthotetida - Chilidiopsidae
Coolinia pecten (Linnaeus 1758)
Strophomenata - Strophomenida - Strophochonetidae
Protochonetes striatellus (Dalman 1828)
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena spp.
Strophomenata - Strophomenida - Strophonellidae
Strophonella (Strophonella) euglypha (Dalman 1828)
recombined as Strophoprion euglypha
Strophomenata - Strophomenida - Leptostrophiidae
Brachyprion sp. Shaler 1865
Strophomenata - Strophomenida - Shaleriidae
Shaleria aff. ornatella (Davidson 1871)
recombined as Shaleria (Janiomya) ornatella
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Rhynchotreta cuneata (Dalman 1828)
? Microsphaeridiorhynchus nucula (Sowerby 1839)
Rhynchonellata - Rhynchonellida - Hebetoechiidae
Sphaerirhynchia wilsoni (de Sowerby 1816)
Rhynchonellata - Orthida - Hesperorthidae
Ptychopleurella bouchardi (Davidson 1847)
Hesperorthis gotlandica (Schuchert and Cooper 1932)
Rhynchonellata - Orthida - Rhipidomellidae
Dalejina hybrida (Sowerby 1839)
Rhynchonellata - Orthida - Dalmanellidae
Resserella canalis (Sowerby 1839)
Isorthis canaliculata (Lindström 1861)
recombined as Levenea canaliculata
Rhynchonellata - Orthida - Draboviidae
Salopina tubulata (Lindström 1861)
Rhynchonellata - Atrypida - Lissatrypidae
Glassia obovata (Sowerby 1839)
recombined as Lissatrypa obovata
Rhynchonellata - Atrypida - Atrypidae
Desquamatia sp. Alekseeva 1960
Atrypa reticularis (Linnaeus 1758)
original and current combination Anomia reticularis
Rhynchonellata - Pentamerida - Gypidulidae
aff. Gypidula aff. glaeata
Rhynchonellata - Pentamerida - Camerellidae
? Camerella sp. Billings 1859
Rhynchonellata - Pentamerida - Parastrophinidae
Anastrophia deflexa (Sowerby 1839)
Rhynchonellata - Spiriferida - Cyrtiidae
Janius barrandi (deVerneuil 1848)
Hedeina crispa (Linnaeus 1758)
Boucot 1957
Striispirifer striolatus (Lindström 1861)
Rhynchonellata - Spiriferida - Cyrtinopsidae
Boucotinskia sulcata (Hisinger 1837)
? Boucotinskia elongata Munthe 1910
Rhynchonellata - Spiriferida - Delthyrididae
? Delthyris ? elevata Dalman 1828
Rhynchonellata - Athyridida - Rhynchospirinidae
Homoeospira baylei (Davidson 1848)
Rhynchonellata - Athyridida - Anoplothecidae
Coelospira pusilla (Hisinger 1837)
Rhynchonellata - Athyridida - Athyrididae
? Didymothyris ? didyma (Dalman 1828)
Rhynchonellata - Athyridida - Nucleospiridae
Nucleospira pisum (Sowerby 1839)
[entered as Nucelospira pisum]
Rhynchonellata - Athyridida - Meristellidae
Whitfieldella sp. Hall and Clarke 1893
Rhynchonellata - Athyridida - Dayiidae
Dayia navicula (Sowerby 1839)
see common names

Geography
Country:Sweden State/province:Gotland
Coordinates: 57.2° North, 18.4° East (view map)
Paleocoordinates:16.8° South, 2.2° West
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period:Silurian Epoch:Ludlow
Stage:Ludfordian 10 m.y. bin:Silurian 2
Key time interval:Ludfordian
Age range of interval:425.60000 - 423.00000 m.y. ago
Stratigraphy
Formation:Eke Beds
Stratigraphic resolution:group of beds
Stratigraphy comments: Correlation from Jeppsson (1983), Fossils and Strata 15:128
Lithology and environment
Primary lithology: "limestone"
Secondary lithology: marl
Lithology description: Ref. 11073: "Eke Beds (15m): Near the east coast of Gotland the boundary between Hemse and Eke Beds is marked by a hard-ground-like discontinuity plane overlain by detritic limestones and small reefmounds with stromatolitic algal deposits. These are interrupted by small paleokarst cavities indicating deposition in extremely shallow water with episodic emersion phases. To the west the Eke beds are developed as a micritic limestone-marl alternation which differs from the underlying Hemse marls by its abundance of oncolites and oncolitic crusts around specimens of an otherwise normal marine benthic fauna..."
Environment:marine indet.
Taphonomy
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:13532
Authorizer:M. Foote, W. Kiessling Enterer:M. Foote, U. Merkel
Modifier:M. Foote Research group:marine invertebrate
Created:2002-04-12 09:46:19 Last modified:2006-09-15 15:15:11
Access level:the public Released:2002-04-12 09:46:19
Creative Commons license:CC BY
Reference information

Primary reference:

6126. M. G. Bassett and L. R. M. Cocks. 1974. A review of Silurian brachiopods from Gotland. Fossils and Strata (3)1-56 [M. Foote/M. Foote/M. Foote]

Secondary references:

42655 A. J. Boucot. 1957. Revision of some Silurian and Early Devonian spiriferid genera and erection of Kozlowskiellinae, new subfamily. Senckenbergiana Lethaea 38:311-334 [W. Kiessling/U. Merkel]
11073 C. Samtleben, A. Munnecke, T. Bickert and J. Paetzold. 1996. The Silurian of Gotland (Sweden): facies interpretation based on stable isotopes in brachiopod shells. Geologische Rundschau 85:278-292 [M. Foote/M. Foote/M. Foote]