Horizon A3, Christchurch Bay (Eocene of the United Kingdom)

Where: England, United Kingdom (50.7° N, 1.7° W: paleocoordinates 48.6° N, 5.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Barton Clay Formation, Bartonian (41.3 - 38.0 Ma)

• Unit A3 as defined by Burton (1933)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified sandstone

• Gray tenacious clay with sands (Highcliff Sands); fossils best preserved in sandy lenticles

Size class: macrofossils

Collected by J. S. Quayle, W. J. Quayle; reposited in the BMNH

Primary reference: W. J. Quayle and J. S. H. Collins. 1981. New Eocene crabs from the Hampshire Basin. Palaeontology 24(4):733-758 [C. Schweitzer/L. Baltzly/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 226649: authorized by Matthew Clapham, entered by Matthew Clapham on 19.07.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

Malacostraca
 Decapoda - Mathildellidae
Branchioplax concinna Quayle and Collins 1981 crab
 Decapoda - Calappidae
Calappilia scopuli Quayle and Collins 1981 box crab
 Decapoda -
Typilobus belli Quayle and Collins 1981 crab
 Decapoda - Tumidocarcinidae
"Lobonotus vulgatus" = Cyclocorystes vulgatus
"Lobonotus vulgatus" = Cyclocorystes vulgatus Quayle and Collins 1981 crab
 Decapoda - Parthenopidae
? Leiolambrus longifrons n. sp. Quayle and Collins 1981 crab
 Decapoda - Dorippidae
Bartethusa hepatica n. gen. n. sp.
Bartethusa hepatica n. gen. n. sp. Quayle and Collins 1981 crab
 Decapoda - Carcinidae
Portunites sylviae Quayle and Collins 1981 crab