Hordle Cliff Green Clay (below the Unio Bed), Hampshire (Eocene of the United Kingdom)

Also known as Hordwell

Where: England, United Kingdom (50.7° N, 1.6° W: paleocoordinates 49.2° N, 5.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

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

• Age is Upper Eocene (Lower Ludian). Bed is 2.7 m thick, and lies directly below the Unio Bed, this bed corresponds to bed 4 of the Marchioness of Hastings's reports

• bed-level stratigraphic resolution

Environment/lithology: green, sandy claystone and concretionary, ferruginous, sandy, calcareous claystone

• fossils come from sandy partings in the green clay bed, the rest of the Headon Beds are predominantly clays, with varying amounts of sand, limestone and ironstone

Size classes: macrofossils, mesofossils

Collection methods: In 1852, the Marchioness of Hastings published an almost identical paper to her 1853 report. I used the later English version, but the earlier paper is the more primary reference.

Primary reference: M. Hastings. 1853. On the Tertiary Beds of Hordwell, Hampshire. Philosophical Magazine and Journal of Science, Fourth Series 6(36):1-11 [J. Alroy/E. Leckey/E. Leckey]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 39664: authorized by John Alroy, entered by Erin Leckey on 02.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Paludinae indet.
author has this listed as a genus
Bivalvia
 Lucinida - Lucinidae
"Cyclas sp." = Lucina (Cyclas)
"Cyclas sp." = Lucina (Cyclas) Klein 1853 clam
 Unionida - Unionidae
Unio sp. Philipsson 1788 freshwater mussel
"Uniones"
Gastropoda
 Architaenioglossa - Viviparidae
 Sorbeoconcha - Potamididae
Actinopteri
 Teleostei -
Reptilia
 Squamata -
Mammalia
  -
Mammalia indet. Linnaeus 1758 mammal
unclassified
  -
Plantae indet. Haeckel 1866
Carpolithes
  -
Carpolithes sp. Brongniart
seeds of Carpolithes, etc.
Limnaea
  -
Limnaea sp. Lamarck 1799