Hempstead Cliff, Hempstead Series (Black Band), Isle of Wight (Eocene of the United Kingdom)

Where: England, United Kingdom (50.7° N, 1.5° W: paleocoordinates 49.2° N, 5.3° W)

• coordinate estimated from map

• local area-level geographic resolution

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

• Forbes calls this the Black band, and has adopted it as the base-bed of the series (below bed 4), its thickness is approx. 2 ft.

• bed-level stratigraphic resolution

Environment/lithology: concretionary, ferruginous, argillaceous marl and black, carbonaceous claystone

• This bed isfirm carbonaceous laminated clays, abounding in fossils. The Hempstead Strata are shales and marls with a variety of colors (green, blue, red, yellow, gray) and some feruginous concretions.

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 40269: authorized by John Alroy, entered by Erin Leckey on 21.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Lucinida - Lucinidae
"Cyclas bristovii" = Lucina (Cyclas)
"Cyclas bristovii" = Lucina (Cyclas) clam
 Unionida - Unionidae
Unio gibbsii freshwater mussel
 Architaenioglossa - Viviparidae
 Rissooidea - Rissoidae
Rissoa chastelii snail
var. major
 Sorbeoconcha - Melanopsidae
 Basommatophora - Planorbidae
 Teleostei -
Limnaea sp. Lamarck 1799