Coombe Quarry, Mapperton, Bed 1b (Jurassic of the United Kingdom)

Where: United Kingdom (50.8° N, 2.7° W: paleocoordinates 39.2° N, 8.4° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Scissum ammonoid zone, Opalinum (175.6 - 171.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, fine-grained, peloidal, gray limestone

• limestone, fine-grained to saccharoidal, grey, weathering cream, hard, burrowed, with clouds of fine cream pellets

Size class: macrofossils

Primary reference: R. Chandler and J. Callomon. 2009. The Inferior Oolite at Coombe Quarry, near Mapperton, Dorset, and a new Middle Jurassic ammonite faunal horizon, Aa-3b, Leioceras comptocostosum n.biosp. in the Scissum Zone of the Lower Aalenian. Proceedings of the Dorset Natural History and Archaeological Society 130:99-132 [M. Aberhan/T. Schossleitner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 141360: authorized by Martin Aberhan, entered by Thomas Schossleitner on 26.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

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Cephalopoda
 Ammonitida - Graphoceratidae
Leioceras plicatellum, Leioceras grave, Leioceras cf. opalinum, Leioceras lineatum, Leioceras cf. capillare
Leioceras grave ammonite
Leioceras cf. opalinum Reinecke 1818 ammonite
Leioceras lineatum Buckman 1899 ammonite
Leioceras cf. capillare Buckman 1928 ammonite
 Ammonitida - Hildoceratidae
Tmetoceras scissum
Tmetoceras scissum Benecke 1865 ammonite
Bivalvia
 Pholadomyida - Pholadomyidae
Pholadomya sp.
Pholadomya sp. Sowerby 1823 clam
 Pectinida - Pectinoidae
Camptonectes giganteus
 Pectinida - Limidae
Ctenostreon pectiniforme, Plagiostoma sp.
Plagiostoma sp. Sowerby 1814 file clam
 Ostreida - Gryphaeidae
Liostrea sp.
Liostrea sp. Douvillé 1904 oyster