Hemse Beds Brachiopods: Gorstian - Ludfordian, Sweden
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chileata
- Dictyonellida
- Eichwaldiidae
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aff. Dictyonella aff. capewellii
(Davidson 1848)
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| recombined as Eodictyonella capewellii | ||||||||||
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Rhynchonellata
- Pentamerida
- Camerellidae
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? Camerella sp.
Billings 1859
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Rhynchonellata
- Pentamerida
- Parastrophinidae
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Anastrophia deflexa
(Sowerby 1839)
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Rhynchonellata
- Pentamerida
- Pentameridae
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Kirkidium knightii
(Sowerby 1813)
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| recombined as Kirkidium knighti | ||||||||||
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Rhynchonellata
- Pentamerida
- Clorindidae
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Antirhynchonella linguifera
(Sowerby 1839)
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Rhynchonellata
- Pentamerida
- Gypidulidae
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Gypidula galeata
(Dalman 1828)
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Rhynchonellata
- Rhynchonellida
- Hebetoechiidae
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Sphaerirhynchia spp.
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Rhynchonellata
- Rhynchonellida
- Trigonirhynchiidae
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? Microsphaeridiorhynchus nucula
(Sowerby 1839)
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Rhynchonellata
- Rhynchonellida
- Rhynchotrematidae
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Ferganella diodonta
(Dalman 1828)
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| recombined as Stegerhynchus diodontus | ||||||||||
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Rhynchonellata
- Spiriferida
- Delthyrididae
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Howellella elegans
Muir-Wood 1925
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? Delthyris ? elevata
Dalman 1828
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Rhynchonellata
- Spiriferida
- Cyrtinopsidae
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Kozlowskiellina deltidialis
(Hedstrom 1923)
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? Boucotinskia elongata
Munthe 1910
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| Boucotinskia? elongata insignis | ||||||||||
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Rhynchonellata
- Spiriferida
- Cyrtiidae
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Striispirifer plicatellus
(Linnaeus 1758)
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Janius barrandi
(deVerneuil 1848)
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Cyrtia exporrecta
(Wahlenberg 1818)
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| recombined as Cyrtia exporrectus | ||||||||||
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Rhynchonellata
- Atrypida
- Lissatrypidae
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? Lissatrypa sulcata
(Lindström 1861)
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Rhynchonellata
- Atrypida
- Atrypidae
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Desquamatia sp.
Alekseeva 1960
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Atrypa reticularis
(Linnaeus 1758)
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| original and current combination Anomia reticularis | ||||||||||
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Rhynchonellata
- Atrypida
- Septatrypidae
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Atrypella prunum
(Dalman 1828)
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| recombined as Atrypoidea prunum | ||||||||||
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Rhynchonellata
- Athyridida
- Dayiidae
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Dayia navicula
(Sowerby 1839)
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Rhynchonellata
- Athyridida
- Athyrididae
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Glassina laeviuscula
(Sowerby 1839)
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Didymothyris didyma
(Dalman 1828)
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Rhynchonellata
- Athyridida
- Meristellidae
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Whitfieldella sp.
Hall and Clarke 1893
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Rhynchonellata
- Orthida
- Hesperorthidae
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Ptychopleurella bouchardi
(Davidson 1847)
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Rhynchonellata
- Orthida
- Rhipidomellidae
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Dalejina hybrida
(Sowerby 1839)
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Rhynchonellata
- Orthida
- Dalmanellidae
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Isorthis ? canaliculata
(Lindström 1861)
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| recombined as Levenea canaliculata | ||||||||||
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Isorthis crassa
(Lindström 1861)
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Rhynchonellata
- Orthida
- Draboviidae
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Salopina conservatrix
(McLearn 1924)
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? Salopina tubulata
(Lindström 1861)
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Strophomenata
- Strophomenida
- Leptostrophiidae
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Leptostrophia filosa
(Sowerby 1839)
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| recombined as Mesoleptostrophia filosa | ||||||||||
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Brachyprion sp.
Shaler 1865
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Leptaena spp.
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Strophomenata
- Strophomenida
- Strophonellidae
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Strophonella (Strophonella) euglypha
(Dalman 1828)
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| recombined as Strophoprion euglypha | ||||||||||
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Strophomenata
- Strophomenida
- Shaleriidae
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Shaleria aff. ornatella
(Davidson 1871)
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| recombined as Shaleria (Janiomya) ornatella | ||||||||||
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Strophomenata
- Strophomenida
- Strophochonetidae
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Protochonetes striatellus
(Dalman 1828)
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Strophomenata
- Strophomenida
- Aegiromenidae
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Aegiria grayi
(Davidson 1849)
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| recombined as Jonesea grayi | ||||||||||
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Strophomenata
- Orthotetida
- Chilidiopsidae
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Morinorhynchus crispus
(Lindström 1861)
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| Strophomena crispa | ||||||||||
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Strophomenata
- Orthotetida
- Triplesiidae
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Plectotreta lindstroemi
Ulrich and Cooper 1936
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| see common names | ||||||||||
Geography
| Country: | Sweden | State/province: | Gotland |
| Coordinates: | 57.2° North, 18.4° East (view map) | ||
| Paleocoordinates: | 17.4° South, 2.3° West | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Ludlow |
| 10 m.y. bin: | Silurian 2 | ||
| *International age/stage: | Gorstian - Ludfordian | ||
| Key time interval: | Gorstian - Ludfordian | ||
| Age range of interval: | 427.40000 - 423.00000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Hemse Beds | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Correlation from Jeppsson (1983), Fossils and Strata 15:128 | |||||
Lithology and environment
| Primary lithology: | "carbonate" | ||
| Environment: | carbonate indet. | Tectonic setting: | cratonic basin |
| Geology comments: SEP: based on this reference, it is impossible to tell which of the three principal environments (deep subtidal, biohermal/open shallow subtidal, or restricted shallow subtidal) represented by the Hemsa beds are the source of data. It is likely to be all three. | |||
Taphonomy
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 13531 | ||
| Authorizer: | M. Foote | Enterer: | M. Foote |
| Modifier: | M. Foote | Research group: | marine invertebrate |
| Created: | 2002-04-12 09:34:38 | Last modified: | 2006-09-15 15:15:11 |
| Access level: | the public | Released: | 2002-04-12 09:34:38 |
| 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] |