Apoderoceras Limestone (Bed 2), St. Peter's Field, Radstock (Jurassic of the United Kingdom)

Where: England, United Kingdom (51.3° N, 2.5° W: paleocoordinates 38.5° N, 6.6° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Jamesoni (189.6 - 183.0 Ma)

• Apoderoceras Limestone, which is part of the Armatum Bed, U. jamesoni ammonite Zone

• bed-level stratigraphic resolution

Environment/lithology: lithified, burrowed grainstone

• a soft, burrowed calcarenitic, somewhat siliciclastic limestone differentially hardened diagenetically into a nodular structure

Size class: macrofossils

Preservation: cast, concretion

Reposited in the OUM

Collection methods: surface (in situ),

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 33361: authorized by Arnold Miller, entered by Karen Layou on 28.07.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Plantae indet. Haeckel 1866
Cephalopoda
 Nautilida -
Nautilida indet. Agassiz 1847
 Ammonitida - Oxynoticeratidae
Oxynoticeras williamsi Tutcher and Trueman 1925 ammonite
Radstockiceras complicatum Buckman 1918 ammonite
 Ammonitida - Phricodoceratidae
Phricodoceras lamellosum d'Orbigny 1844 ammonite
 Ammonitida - Coeloceratidae
Tetraspidoceras quadrarmatum Dumortier 1867 ammonite
Apoderoceras cf. dunrobinense Spath 1926 ammonite
Apoderoceras subtriangulare Young and Bird 1822 ammonite
? Miltoceras sp. Wiedenmayer 1980 ammonite
 Belemnoidea -
Belemnitida indet. Zittel 1895 belemnite
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
Rhynchonellata
 Terebratulida -