Hemse Beds Brachiopods (Silurian to of Sweden)

Where: Gotland, Sweden (57.2° N, 18.4° E: paleocoordinates 17.4° S, 2.3° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Hemse Beds Formation, Gorstian to Gorstian (427.4 - 423.0 Ma)

• Correlation from Jeppsson (1983), Fossils and Strata 15:128

• group of beds-level stratigraphic resolution

Environment/lithology: carbonate

• 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.

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13531: authorized by Michael Foote, entered by Michael Foote on 12.04.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Strophomenata
 Productida - Strophochonetidae
 Orthotetida - Triplesiidae
Plectotreta lindstroemi Ulrich and Cooper 1936
 Orthotetida - Chilidiopsidae
Morinorhynchus crispus Lindström 1861
 Strophomenida - Aegiromenidae
"Aegiria grayi" = Jonesea grayi
"Aegiria grayi" = Jonesea grayi Davidson 1849
 Strophomenida - Leptostrophiidae
"Leptostrophia filosa" = Mesoleptostrophia filosa, Brachyprion sp.
"Leptostrophia filosa" = Mesoleptostrophia filosa Sowerby 1839
Brachyprion sp. Shaler 1865
 Strophomenida - Rafinesquinidae
Leptaena spp. Dalman 1828
 Strophomenida - Shaleriidae
"Shaleria aff. ornatella" = Shaleria (Janiomya) ornatella
"Shaleria aff. ornatella" = Shaleria (Janiomya) ornatella Davidson 1871
 Strophomenida - Strophonellidae
"Strophonella (Strophonella) euglypha" = Strophoprion euglypha
"Strophonella (Strophonella) euglypha" = Strophoprion euglypha Dalman 1828
Chileata
 Dictyonellida - Eichwaldiidae
Rhynchonellata
 Athyridida - Dayiidae
Dayia navicula Sowerby 1839
 Athyridida - Meristellidae
Whitfieldella sp. Hall and Clarke 1893
 Athyridida - Athyrididae
Glassina laeviuscula Sowerby 1839
Didymothyris didyma Dalman 1828
 Spiriferida - Cyrtiidae
"Cyrtia exporrecta" = Cyrtia exporrectus Wahlenberg 1818
Janius barrandi deVerneuil 1848
 Spiriferida - Delthyrididae
Howellella elegans Muir-Wood 1925
? Delthyris ? elevata Dalman 1828
 Spiriferida - Cyrtinopsidae
? Boucotinskia elongata Munthe 1910
Boucotinskia? elongata insignis
 Pentamerida - Camerellidae
? Camerella sp. Billings 1859
 Pentamerida - Parastrophinidae
Anastrophia deflexa Sowerby 1839
 Pentamerida - Gypidulidae
Gypidula galeata Dalman 1828
 Pentamerida - Clorindidae
 Pentamerida - Pentameridae
"Kirkidium knightii" = Kirkidium knighti
"Kirkidium knightii" = Kirkidium knighti Sowerby 1813
 Atrypida - Atrypidae
Desquamatia sp. Alekseeva 1960
Atrypa reticularis Linnaeus 1758
 Atrypida - Lissatrypidae
"Atrypella prunum" = Atrypoidea prunum Dalman 1828
? Lissatrypa sulcata Lindström 1861
 Rhynchonellida - Trigonirhynchiidae
 Rhynchonellida - Rhynchotrematidae
"Ferganella diodonta" = Stegerhynchus diodontus
"Ferganella diodonta" = Stegerhynchus diodontus Dalman 1828
 Rhynchonellida - Hebetoechiidae
Sphaerirhynchia spp. Cooper and Muir-Wood 1951
 Orthida - Draboviidae
? Salopina tubulata Lindström 1861
Salopina conservatrix McLearn 1924
 Orthida - Rhipidomellidae
Dalejina hybrida Sowerby 1839
 Orthida - Dalmanellidae
"Isorthis ? canaliculata" = Levenea canaliculata, Isorthis crassa
"Isorthis ? canaliculata" = Levenea canaliculata Lindström 1861
Isorthis crassa Lindström 1861
 Orthida - Hesperorthidae