Transition Fauna, upper 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: upper Member (Elton Beds Formation), Ludlow (427.4 - 423.0 Ma)
• "Upper Sil."
Environment/lithology: offshore; burrowed siltstone
• "gradation b/w mudstone and bioturb. sltst. offshore, b/w GO and Ml (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 481: authorized by Jack Sepkoski, entered by Mike Sommers on 15.12.1998
Creative Commons license: CC BY (attribution)
Taxonomic list
• "Watkins, 1979. Taxa <0.2% not listed"
Show authors, comments, and common names
| unclassified | |
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| Cephalopoda | |
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? Nautiloidea indet. Agassiz 1847 nautiloid cephalopods - originally entered as "? Nautiloidea indet."
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| Gastropoda | |
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? Archaeogastropoda indet. Thiele 1925 snail high spired gastropods - originally entered as "? Archaeogastropoda indet."
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Cymbularia sp. Koken 1896 snail | |
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Leptozone sp. Perner 1907 snail | |
| Bivalvia | |
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Nuculites sp. Conrad 1841 clam | |
"Pholadomyoida indet." = Pholadomyida
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Orthonota sp. Conrad 1841 clam | |
"Modiomorphoida indet." = Modiomorphida
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Goniophora sp. Phillips 1848 clam | |
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Mytilarca sp. Hall and Whitfield 1869 clam | |
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Cardiola sp. Broderip 1839 clam | |
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Cyrtodonta sp. Billings 1858 clam | |
| Lingulata | |
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Lingula sp. Bruguiére 1797 | |
| Craniata | |
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Craniops sp. Hall 1859 | |
| Rhynchonellata | |
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Gypidula sp. Hall 1867 | |
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Sphaerirhynchia sp. Cooper and Muir-Wood 1951 | |
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Howellella sp. Kozlowski 1946 | |
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Eospirifer sp. Schuchert 1913 | |
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Atrypa sp. Dalman 1828 | |
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Dayia sp. Davidson 1881 | |
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Nucleospira sp. Hall 1859 | |
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Dalejina sp. Havlicek 1953 | |
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Isorthis sp. Kozlowski 1929 | |
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Skenidioides sp. Schuchert and Cooper 1931 | |
| Strophomenata | |
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Leptostrophia sp. Hall and Clarke 1892 | |
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Leptaena sp. Dalman 1828 | |
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Strophonella sp. Hall 1879 | |
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Amphistrophia sp. Hall and Clarke 1892 | |
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Mesopholidostrophia sp. Williams 1950 | |
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Shagamella sp. Boucot and Harper 1968
Protochonetes sp. Muir-Wood 1962 | |
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Aegiria sp. Opik 1933 | |
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Schuchertella sp. Girty 1904 | |
| Hyolitha | |
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Hyolithes sp. d'Eichwald 1840 | |
| Trilobita | |
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Proetus sp. Steininger 1831 trilobite | |
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Calymene sp. Brongniart 1822 trilobite | |
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Dalmanites sp. Barrande 1852 trilobite | |
| Anthozoa | |
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