Bed 118b, Upper Darker Marls, Charmouth (Jurassic of the United Kingdom)

Where: Dorset, United Kingdom (50.7° N, 2.9° W: paleocoordinates 37.9° N, 6.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Belemnite Marls Formation, Jamesoni (189.6 - 183.0 Ma)

• Jamesoni subzone, Pettos horizon ("Coeloceras pettos zone" of Lang et al.). Lower part of Upper Darker Marls.

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, gray, blue marl

• Bluish-grey marl

Size class: macrofossils

Reposited in the BMNH

Primary reference: W. D. Lang, L. F. Spath, L. R. Cox and H. M. Muir-Wood. 1928. The Belemnite marls of Charmouth, a series in the Lias of the Dorset Coast. Quarterly Journal of the Geological Society 84:179-257 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 159187: authorized by Matthew Clapham, entered by Matthew Clapham on 29.07.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Rhynchonellida - Rhynchonellidae
"Tropiorhynchia thalia" = Piarorhynchia thalia
"Tropiorhynchia thalia" = Piarorhynchia thalia d'Orbigny 1850
 Terebratulida - Lobothyrididae
Lobothyris ovulum Quenstedt 1858
 Terebratulida - Zeilleriidae
Cincta sestertius Buckman 1907
Cephalopoda
 Belemnitida - Passaloteuthididae
Angeloteuthis raphael Lang 1928 belemnite
Angeloteuthis gabriel Lang 1928 belemnite
 Ammonitida - Coeloceratidae
Coeloceras planula, "Coeloceras aff. grenouillouxi" = Coeloceras grenouillouxi, "Coeloceras pettos" = Coeloceras grenouillouxi
"Coeloceras aff. grenouillouxi" = Coeloceras grenouillouxi d'Orbigny 1844 ammonite
"Coeloceras pettos" = Coeloceras grenouillouxi d'Orbigny 1844 ammonite
 Ammonitida - Polymorphitidae
Uptonia bronni Roemer 1836 ammonite