Allt-Tair-ffynon Beds at Allt y Gadair (Ordovician of the United Kingdom)
Where: Wales, United Kingdom (52.8° N, 3.3° W: paleocoordinates 52.4° S, 18.1° W)
When: Longvillian (457.2 - 455.0 Ma)
• Author concludes that exposures yeilding the fauna described herein are no longer present and are likely covered.
•
•Was Soudleyan-Longvillian, but Tunnicliff (1987) says Longvillian.
Environment/lithology: marine; mudstone
• highly fossiliferous, fine-grained rotten mudstone which is chocolate brown in color when weathered.
Primary reference: S.P. Tunnicliff. 1987. Caradocian bivalve molluscs from Wales. Palaeontology 30(4):677-690 [A. Miller/R. Krause/R. Krause]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 13832: authorized by Arnold Miller, entered by Rich Krause on 29.04.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Trilobita | |
|
Trilobita indet. Walch 1771 trilobite | |
| Rhynchonellata | |
|
Dalmanella indet. Hall and Clarke 1892 | |
| Strophomenata | |
"Macrocoelia indet." = Colaptomena
"Macrocoelia indet." = Colaptomena Cooper 1956 | |
| Tergomya | |
|
Cyrtolites nodosus Salter and Aveline 1854 | |
| Bivalvia | |
|
Orthodesma sp. Hall and Whitfield 1875 clam
Cymatonota verisimilis n. sp. Tunnicliff 1987 clam
Goniophora sp. Phillips 1848 clam | |
Pseudarca celtica n. sp.
Pseudarca celtica n. sp. Tunnicliff 1987 clam | |
Myodakryotus deigryn n. gen. n. sp.
Myodakryotus deigryn n. gen. n. sp. Tunnicliff 1987 oyster | |
"? Palaearca bulla n. sp." = Vanuxemia bulla
"? Palaearca bulla n. sp." = Vanuxemia bulla Salter 1865 clam | |
| Gastropoda | |
|
Gastropoda indet. Cuvier 1795 snail | |
|
Cyclonema crebristria M'Coy 1851 snail | |