Cliffend, Osborne Beds (bed 3), Isle of Wight (Eocene of the United Kingdom)

Where: England, United Kingdom (50.7° N, 1.5° W: paleocoordinates 49.2° N, 5.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Osborne Beds Formation, Late/Upper Eocene (37.2 - 33.9 Ma)

• It is not clear how these beds correlate with the section Forbes describes at Seafield, even the yellow limestone that marks the boundary between the "St. Helen's Sands" and the "Nettlestone Grits" is absent here. The bed is 7 ft thick.

• bed-level stratigraphic resolution

Environment/lithology: concretionary, ferruginous, calcareous claystone and ferruginous, shelly/skeletal claystone

• This bed is dark grey laminated clays, very fossiliferous, divided in the center by a strong but thin band of ironstone. The Osborne Series here are clays and marls, in places concretionary and ferruginous, as well as laminated.

Size class: macrofossils

Preservation: cast, mold/impression, concretion

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 40423: authorized by John Alroy, entered by Erin Leckey on 23.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Pancrustacea
  -
Insecta indet. Linnaeus 1758 insect
Gastropoda
 Architaenioglossa - Viviparidae
 Sorbeoconcha - Thiaridae
"Melania costata" = Thiara
"Melania costata" = Thiara snail
 Sorbeoconcha - Melanopsidae
Cyrena
  -
Cypridae
  - Cypridae