Raricostatum Clay, St. Peter's Field, Radstock (Jurassic of the United Kingdom)

Where: England, United Kingdom (51.3° N, 2.5° W: paleocoordinates 38.0° N, 4.0° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Raricostatum (196.5 - 189.6 Ma)

• Raricostatum Clay, which is within the E. raricostatum ammonite Zone

• bed-level stratigraphic resolution

Environment/lithology: lithified, concretionary, gray, blue claystone

• a thin, blue-gray, plastic clay containing belemnites and phosphatized body chambers of ammonites; abundant buff-coloured claystone nodules often enclose ammonites and other fossils

Size class: macrofossils

Preservation: concretion, replaced with phosphate

Reposited in the OUM

Primary reference: M. Edmunds, M. Varah, and A. Bentley. 2003. The ammonite biostratigraphy of the Lower Lias "Armatum Bed" (Upper Sinemurian-Lower Pliensbachian) at St Peter's Field, Radstock, Somerset. Proceedings of the Geologists' Association 114(1):65-96 [A. Miller/K. Layou/K. Layou]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 33370: authorized by Arnold Miller, entered by Karen Layou on 28.07.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Oxynoticeratidae
"Gleviceras cf. lotharingium" = Gleviceras lotharingius
"Gleviceras cf. lotharingium" = Gleviceras lotharingius Reynes 1850 ammonite
 Ammonitida - Echioceratidae
Echioceras cf. pauli, Echioceras raricostatum
Echioceras raricostatum Zieten 1831 ammonite
 Belemnoidea -
Belemnitida indet.
Belemnitida indet. Zittel 1895 belemnite