Upper Visby Beds Brachiopods: Sheinwoodian, Sweden

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Platystrophia jaaniensis Rubel 1963
Strophomenata - Strophomenida - Leptestiidae
Leangella segmentum (Lindstrom 1861)
recombined as Leangella (Leangella) segmentum
Strophomenata - Strophomenida - Sowerbyellidae
Eoplectodonta duvalii (Davidson 1847)
Strophomenata - Strophomenida - Leptaenoideidae
Leptaena rugata (Lindström 1861)
recombined as Leptaenoidea rugata
Strophomenata - Strophomenida - Furcitellidae
Pentlandina loveni (Verneuil 1848)
Pentlandina lewisii (Davidson 1847)
Hoel 2011
subsp. lewisii
aff. Katastrophomena aff. scabrosa (Davidson 1847)
Katastrophomena (Katastrophomena) penkillensis (Reed 1917)
Hoel 2011
recombined as Katastrophomena penkillensis
Bellimurina wisgoriensis (Lamont and Gilbert 1945)
Hoel 2011
recombined as Cyphomenoidea wisgoriensis
Strophomenata - Strophomenida - Leptostrophiidae
Brachyprion sp. Shaler 1865
Leptostrophia filosa (Sowerby 1839)
recombined as Mesoleptostrophia filosa
Megastrophia (Protomegastrophia) semiglobosa (Davidson 1871)
recombined as Protomegastrophia semiglobosa
Strophomenata - Strophomenida - Rafinesquinidae
Leptaena rhomboidalis (Wahlenberg 1818)
recombined as Leptaena (Leptaena) rhomboidalis
Leptaena depressa (Sowerby 1824)
recombined as Leptaena (Leptaena) depressa
Leptaena spp.
    = Leptaena depressa Sowerby 1824
Hoel 2005
recombined as Leptaena (Leptaena) depressa
Leptaena depressa visbyensis
Strophomenata - Orthotetida - Triplesiidae
Streptis grayii (Davidson 1848)
Plectotreta lindstroemi Ulrich and Cooper 1936
Strophomenata - Orthotetida - Chilidiopsidae
Coolinia pecten (Linnaeus 1758)
Valdaria testudo Bassett and Cocks 1974
Chileata - Dictyonellida - Eichwaldiidae
Dictyonella capewellii (Davidson 1848)
recombined as Eodictyonella capewellii
Rhynchonellata - Pentamerida - Clorindidae
Clorinda rotunda (Lindström 1861)
Rhynchonellata - Orthida - Dalmanellidae
Isorthis loveni (Lindström 1861)
Visbyella visbyensis (Lindstrom 1861)
Resserella basalis (Dalman 1828)
Rhynchonellata - Orthida - Rhipidomellidae
Dalejina phaseola (Rubel 1963)
Rhynchonellata - Orthida - Dicoelosiidae
Dicoelosia verneuiliana (Beecher 1891)
Rhynchonellata - Spiriferida - Cyrtiidae
Eospirifer radiatus (Sowerby 1834)
Cyrtia exporrecta (Wahlenberg 1818)
recombined as Cyrtia exporrectus
Rhynchonellata - Spiriferida - Delthyrididae
Howellella elegans Muir-Wood 1925
Rhynchonellata - Atrypida - Atrypidae
Plectatrypa imbricata (Sowerby and Murchison 1839)
Plectatrypa lamellosa Lindström 1861
Spinatrypina tubulosa Bassett and Cocks 1974
Atrypa reticularis (Linnaeus 1758)
original and current combination Anomia reticularis
Atrypa hedei (Struve 1966)
Rhynchonellata - Atrypida - Anazygidae
? Rhynchonella ? exigua Lindström 1861
recombined as Zygatrypa exigua
questionable occurrence of "Rhynchonella" exigua, which may be a n. gen.
Rhynchonellata - Protorthida - Skenidiidae
Skenidioides acutum (Lindström 1861)
Rhynchonellata - Rhynchonellida - Machaerariidae
Ferganella borealis (Buch 1834)
recombined as Stegerhynchus borealis
Rhynchonellata - Rhynchonellida - Trigonirhynchiidae
Rhynchotreta cuneata (Dalman 1828)
? Microsphaeridiorhynchus nucula (Sowerby 1839)
Rhynchonellata - Rhynchonellida - Hebetoechiidae
Sphaerirhynchia spp.
see common names

Geography
Country:Sweden State/province:Gotland
Coordinates: 57.6° North, 18.3° East (view map)
Paleocoordinates:21.6° South, 3.0° West
Basis of coordinate:based on political unit
Geographic resolution:local area
Time
Period:Silurian Epoch:Wenlock
Stage:Sheinwoodian 10 m.y. bin:Silurian 2
*Epoch:Early/Lower Wenlock
*International age/stage:Early/Lower Sheinwoodian
Key time interval:Sheinwoodian
Age range of interval:433.40000 - 430.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Upper Visby
Stratigraphic resolution:group of beds
Stratigraphy comments: Correlation from Jeppsson (1983), Fossils and Strata 15:128.
Lithology and environment
Primary lithology: packstone
Secondary lithology: lime mudstone
Lithology description: see geology
Environment:deep subtidal ramp Tectonic setting:cratonic basin
Glacial or sequence phase:regressive
Geology comments: SEP: Silurian of Gotland has been variably described as a ramp and platform. Based on my read of the literature, I think if falls best into the ramp category. From Samtleben et al. (1996). Geol. Rundsch 85:278-292; "This series of micritic limestones and marls (of the Lower Visby) shows upward increasing intercalations of biodetritic limestones (packstones, in the upper part grainstones) which indicate episodes of wave-base influence on the sea floor...erosional discordances and channel structures indicate the effects of bottom currents."
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:13524
Authorizer:M. Foote, W. Kiessling, P. Wagner Enterer:M. Foote, P. Wagner, U. Merkel
Modifier:P. Wagner Research group:marine invertebrate
Created:2002-04-12 07:54:45 Last modified:2018-05-14 23:59:01
Access level:the public Released:2002-04-12 07:54:45
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:

55269 O. A. Hoel. 2005. Silurian Leptaeninae (Brachiopoda) from Gotland, Sweden. Paläontologische Zeitschrift 79(2):263-284 [W. Kiessling/M. Krause]
36458 O. A. Hoel. 2011. Strophomenidae, Leptostrophiidae, Strophodontidae and Shaleriidae (Brachiopoda, Strophomenida) from the Silurian of Gotland, Sweden. Palaeontologische Zeitschrift 85:201-229 [W. Kiessling/U. Merkel/P. Wagner]