DCb-Greensand (Cretaceous of the United Kingdom)

Where: England, United Kingdom (50.6° N, 2.0° W: paleocoordinates 40.3° N, 9.0° E)

• small collection-level geographic resolution

When: Atherfield Clay Formation (Lower Greensand Group), Aptian (125.0 - 113.0 Ma)

• This 1ft. thick bed occurs between the Atherfield Clay and Ferruginous Sands and is correlative to the Crackers at Atherfield Point.

• bed-level stratigraphic resolution

Environment/lithology: marine; carbonaceous carbonate

Size class: mesofossils

Primary reference: R. Casey. 1961. The stratigraphical palaeontology of the Lower Greensand. Palaeontology 3(4):487-621 [M. Patzkowsky/K. Layou/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 1773: authorized by Mark Patzkowsky, entered by Karen Layou on 08.06.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Sorbeoconcha - Cassiopidae
Cassiope sp.
Cassiope sp. Coquand 1865 snail
Bivalvia
 Pholadida - Corbulidae
Cuneocorbula arkelli n. sp.
Cuneocorbula arkelli n. sp. clam
"arkelli sp. nov." - originally entered as "Cuneocorbula arkelli sp. nov."
 Cardiida - Corbiculidae
Filosina gregaria
 Cardiida - Neomiodontidae
Eomiodon sp., cf. Eomiodon libanoticus
Eomiodon sp. Cox 1935 clam
cf. Eomiodon libanoticus clam
originally entered as "Eomiodon cf. libanoticus"
 Cardiida - Cardiidae
Nemocardium ibbetsoni
 Ostreida - Gryphaeidae
"cf. Exogyra tuberculifera" = Ceratostreon tuberculiferum
"cf. Exogyra tuberculifera" = Ceratostreon tuberculiferum Koch and Dunker 1837 oyster
originally entered as "Exogyra cf. tuberculifera"
Cephalopoda
 Ammonitida - Deshayesitidae
aff. Deshayesites callidiscus, Deshayesites sp. n. sp., Deshayesites forbesi
aff. Deshayesites callidiscus ammonite
originally entered as "Deshayesites aff. callidiscus"
Deshayesites sp. n. sp. Kazansky 1914 ammonite
originally entered as "Deshayesites sp. nov."
 Ammonitida - Douvilleiceratidae
Roloboceras hambrovi
Roloboceras hambrovi Forbes 1845 ammonite