Dong'anzhen Formation, Middle Volgian, eastern Heilongjiang, China (Jurassic of China)

Where: Heilongjiang, China (47.3° N, 134.2° E: paleocoordinates 49.3° N, 137.6° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Dong'anzhen Formation (Longzhaogou Group), Tithonian (152.1 - 145.0 Ma)

• Beds approx. 20 m in thickness in the Lower Dong'anzhen Formation; Middle Volgian

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, argillaceous siltstone

Size class: macrofossils

Primary reference: J. Sha and F. T. Fursich. 1993. Biostratigraphy of the Upper Jurassic-Lower Cretaceous bivalves Buchia and Aucellina of eastern Heilongjiang, northeast China. Geol. Mag. 130(4):533-542 [M. Aberhan/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 59661: authorized by Martin Aberhan, entered by Sabine Nürnberg on 06.04.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

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Bivalvia
 Nuculanida - Malletiidae
Palaeoneilo sp.
Palaeoneilo sp. Hall and Whitfield 1869 clam
 Pectinida - Buchiidae
Buchia ex gr. unschensis, Buchia russiensis, Buchia donganensis, Buchia fischeriana
Buchia fischeriana d'Orbigny 1845 scallop
 Thraciida - Thraciidae
? Thracia sp.
? Thracia sp. Blainville 1824 clam