Glassia obovata association, middle Elton Beds (Silurian of the United Kingdom)

Where: England, United Kingdom (52.4° N, 2.7° W: paleocoordinates 26.4° S, 12.6° W)

• coordinate based on political unit

When: middle Member (Elton Beds Formation), Ludlow (427.4 - 423.0 Ma)

• "Upper Sil. Ludlow Series"

Environment/lithology: offshore; burrowed shale

• "bioturbated mudstone and laminated shale. very low energy distal shelf; Clorinda comm. equivalent BA5"

Size class: macrofossils

Primary reference: R. Watkins. 1979. Benthic community organization in the Ludlow Series of the Welsh Borderland. Bulletin of the British Museum of Natural History (Geology) 31:175-280 [P. Novack-Gottshall/P. Hearn/J. Ju]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 482: authorized by Jack Sepkoski, entered by Mike Sommers on 15.12.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "R. Watkins, 1979. Bethic community organization in the Ludlow Series of the Welsh Borderland. Bull. Brit. Mus. Nat. Hist (Geol.) 31:175-280"
Show authors, comments, and common names
Anthozoa
 Rugosa -
Rugosa indet.
Rugosa indet. horn coral
trochoid corals
Cephalopoda
 Orthocerida - Orthoceratidae
Orthoceras sp.
Orthoceras sp. Breynius 1832
 Orthocerida - Kionoceratidae
Kionoceras sp.
Kionoceras sp. Hyatt 1884
 Orthoceratoidea - Paraphragmitidae
Cyrtocycloceras sp.
Cyrtocycloceras sp. Foerste 1936
2 species
 Oncocerida -
Cyrtoceras sp.
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
gastropods
 Streptoneura -
Archaeogastropoda indet.
Archaeogastropoda indet. Thiele 1925 snail
2 species, pleurotomariaceans
 Bellerophontida - Bellerophontidae
Cymbularia sp., Sphenosphaera sp.
Cymbularia sp. Koken 1896 snail
Sphenosphaera sp. Knight 1945 snail
 Murchisoniina - Loxonematidae
Loxonema sp.
Loxonema sp. Phillips 1841 snail
 Murchisoniina - Gosseletinidae
Leptozone sp., ? Promourlonia sp.
Leptozone sp. Perner 1907 snail
? Promourlonia sp. Longstaff 1924 snail
was Bembexia; PJW3
 Murchisoniina - Murchisoniidae
"Sinuspira sp." = Michelia
"Sinuspira sp." = Michelia Roemer 1855 snail
Bivalvia
 Nuculida - Praenuculidae
Praenucula sp.
Praenucula sp. Pfab 1934 clam
 Solemyida - Ctenodontidae
Praectenodonta sp.
Praectenodonta sp. Philip 1962 clam
 Nuculanida - Cucullellidae
Nuculites sp.
Nuculites sp. Conrad 1841 clam
 Modiomorphida - Modiomorphidae
Butovicella sp., Goniophora sp.
Butovicella sp. Kríž 1965 clam
Goniophora sp. Phillips 1848 clam
 Cardiidia -
"Pholadomyoida indet." = Pholadomyida
"Pholadomyoida indet." = Pholadomyida Newell 1965 clam
grammysiid
 Cyrtodontida - Antipleuridae
Dualina sp.
Dualina sp. Barrande 1881 clam
 Cyrtodontida - Praecardiidae
Buchiola sp.
Buchiola sp. Barrande 1881 clam
 Cyrtodontida - Cardiolidae
Cardiola sp.
Cardiola sp. Broderip 1839 clam
 Cyrtodontida - Slavidae
Slava sp.
Slava sp. Barrande 1881 clam
 Myalinida - Ambonychiidae
Mytilarca sp.
Mytilarca sp. Hall and Whitfield 1869 clam
Hyolitha
 Hyolithida - Hyolithidae
Hyolithes sp.
Hyolithes sp. d'Eichwald 1840
Lingulata
 Lingulida - Lingulidae
Lingula sp.
Lingula sp. Bruguiére 1797
Rhynchonellata
 Spiriferida - Cyrtiidae
Cyrtia sp.
Cyrtia sp. Dalman 1828
 Spiriferida - Delthyrididae
Howellella sp.
Howellella sp. Kozlowski 1946
 Atrypida - Glassiidae
Glassia sp.
Glassia sp. Davidson 1881
 Athyridida - Dayiidae
? Protozeuga sp.
? Protozeuga sp. Twenhofel 1914
originally entered as "? Protozeuga sp."
 Pentamerida - Gypidulidae
Gypidula sp.
Gypidula sp. Hall 1867
 Pentamerida - Parastrophinidae
Parastrophinella sp.
Parastrophinella sp. Schuchert and Cooper 1931
 Orthida - Dalmanellidae
Isorthis sp., Resserella sp.
Isorthis sp. Kozlowski 1929
Resserella sp. Bancroft 1928
 Orthida - Dicoelosiidae
Dicoelosia sp.
Dicoelosia sp. King 1850
 Orthida - Rhipidomellidae
Dalejina sp.
Dalejina sp. Havlicek 1953
 Protorthida - Skenidiidae
Skenidioides sp.
Skenidioides sp. Schuchert and Cooper 1931
 Rhynchonellida - Camarotoechiidae
Plagiorhyncha sp.
Plagiorhyncha sp. McLearn 1918
Strophomenata
 Orthotetida - Schuchertellidae
Schuchertella sp.
Schuchertella sp. Girty 1904
 Strophomenida - Aegiromenidae
Aegiria sp.
Aegiria sp. Opik 1933
 Strophomenida - Eopholidostrophiidae
Mesopholidostrophia sp.
 Strophomenida - Strophonellidae
Strophonella sp.
Strophonella sp. Hall 1879
 Strophomenida - Rafinesquinidae
"Ludfordina sp." = Glossoleptaena
"Ludfordina sp." = Glossoleptaena Havlicek 1967
 Strophomenida - Strophochonetidae
Shagamella sp., Protochonetes sp.
Shagamella sp. Boucot and Harper 1968
Protochonetes sp. Muir-Wood 1962
Craniata
 Craniopsida - Craniopsidae
Craniops sp.
Craniops sp. Hall 1859
Trilobita
 Phacopida - Dalmanitidae
Dalmanites sp.
Dalmanites sp. Barrande 1852 trilobite
 Trinucleida - Raphiophoridae
Raphiophorus sp.
Raphiophorus sp. Angelin 1854 trilobite
 Proetida - Otarionidae
Otarion sp.
Otarion sp. Zenker 1833 trilobite
 Odontopleurida - Odontopleuridae
Leonaspis sp.
Leonaspis sp. Richter and Richter 1917 trilobite
Crinoidea
  -
Crinoidea indet.
Crinoidea indet. Miller 1821 Sea lily
crinoid ossicles