Seafield, Osborne Series (bed 2), Isle of Wight (Eocene of the United Kingdom)

Where: England, United Kingdom (50.7° N, 1.1° W: paleocoordinates 49.2° N, 5.0° W)

• coordinate estimated from map

• local area-level geographic resolution

When: St. Helen's Sands Member (Osborne Beds Formation), Late/Upper Eocene (37.2 - 33.9 Ma)

• Forbes calls this bed 1, and calls the subunit the St. Helen's Sands, a naming that I'm not sure anyone else follows. Bed thickness is 8 ft.

• bed-level stratigraphic resolution

Environment/lithology: concretionary, argillaceous, calcareous sandstone and green, yellow, sandy, conglomeratic marl

• This bed is a pale greenish white and yellowish marl, with patches of calcareous sand and comminuted shells; also argillo-calcareous nodules of various sizes. The Osborne Beds are sandstone and clay beds with concretions and some interbedded marl.

Size class: macrofossils

Primary reference: E. Forbes. 1856. On the Tertiary fluvio-marine formation of the Isle of Wight. Memoirs of the Geological Survey of Great Britain, and of the Museum of Practical Geology 1-162 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 40292: authorized by John Alroy, entered by Erin Leckey on 21.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Sorbeoconcha - Thiaridae
"Melania excavata" = Thiara
"Melania excavata" = Thiara snail