Locality 12, Leziate Sand Pit, opressus Biozone, Norfolk (Jurassic of the United Kingdom)

Where: England, United Kingdom (52.8° N, 0.5° E: paleocoordinates 43.6° N, 10.0° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Lower Spilsby Member (Spilsby Sandstone Formation), Tithonian (152.1 - 145.0 Ma)

• Erratic blocks of Lower Spilsby Member, oppressus Biozone, Middle Volgian (according to Sey and Kalacheva 1999 = Tithonian)

• bed-level stratigraphic resolution

Environment/lithology: shoreface; lithified siliciclastic sediments

• "The bulk of the bivalve fauna of the Splisby Sandstone and Sandringham Sands formations is preserved as moulds. The lithologies in which these occur are principally calcareous concretions in glauconitic sandstones, sideritc mudstone concretions and phosphatized nodule beds."

Size class: macrofossils

Preservation: mold/impression

Reposited in the BGS

Collection methods: bulk, mechanical,

• might incl. specimens of museum collections

Primary reference: S. R. A. Kelly. 1984. Bivalvia of the Spilsby Sandstone and Sandringham Sands (Late Jurassic-Early Cretaceous) of eastern England; Part I. The Palaeontographical Society, London 1-94 [M. Aberhan/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 69134: authorized by Martin Aberhan, entered by Sabine Nürnberg on 20.02.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus on bivalves.
Bivalvia
 Mytilida - Mytilidae
 Mytilida - Crenellidae
Musculus (Musculus) fischerianus mussel
'8 specimens' from probably three localities; of the 5 listed specimens, one belongs to this locality
 Pectinida - Anomiidae
 Pectinida - Limidae
 Pectinida - Oxytomidae
Oxytoma (Oxytoma) octavia Orbigny 1850 scallop
 Pectinida - Entoliidae
Entolium (Entolium) orbiculare Sowerby 1817 scallop
 Pectinida - Pectinoidae
 Ostreida - Gryphaeidae
"Nanogyra nana" = Nanogyra (Nanogyra) nana Sowerby 1822 oyster
 Ostreida - Pinnidae
 Ostreida - Malleidae
 Arcida - Cucullaeidae
Dicranodonta vagans clam
'c. 200 specimens' from probably three localities; of the 11 listed specimens, 6 belong to this locality
 Lucinida - Lucinidae
Codakia crassa clam
'14 specimens' from probably four localities; of the 9 listed specimens, 6 belong to this locality
 Carditida - Astartidae
Lyapinella asiatica clam
'c. 300 specimens' from probably three localities; of the 10 listed specimens, one belongs to this locality
 Trigoniida - Myophorelloidae
 Trigoniida - Trigoniidae
Cephalopoda
 Ammonitida - Polyptychitidae
"Paracraspedites sp." = Subcraspedites (Paracraspedites)
"Paracraspedites sp." = Subcraspedites (Paracraspedites) ammonite