Hordle Cliff Chara 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)

• this horizon occurs immediately above the "blue and green clays" of Cray, 1973, the Marchioness calls it "Stratum 5" numbered from top to bottom. Age is Upper Eocene (Lower Ludian).

• bed-level stratigraphic resolution

Environment/lithology: ferruginous, sandy, calcareous claystone and gray, sandy, carbonaceous claystone

• this bed has a band of lignite at the bottom, followed by a band of grey sand (unfossiliferous). After this there is a band of dark grey clay and lignite topped by gray sand. The Headon Beds are predominantly clays, with varying amounts of sand, limestone and ironstone

Size class: macrofossils

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 39838: authorized by John Alroy, entered by Erin Leckey on 08.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Paludinae indet.
author has this listed as a genus
Bivalvia
 Cardiida -
 Unionida - Unionidae
Unio spp. Philipsson 1788 freshwater mussel
Unio solandri freshwater mussel
Gastropoda
 Sorbeoconcha - Potamididae
 Sorbeoconcha - Melanopsidae
Reptilia
 Testudines - Trionychidae
Trionyx sp. Geoffroy Saint-Hilaire 1809 softshell turtle
fragments of carapace and plastron
Charophyceae
 Charales - Characeae
Chara spp. Linnaeus 1753 stonewort
"Charae"
Cyrena
  -
Limnaea
  -
Limnaea sp. Lamarck 1799
"Limneae"