Beishan (Dalian Museum collection) (Cretaceous of China)

Where: Liaoning, China (41.4° N, 120.0° E: paleocoordinates 44.6° N, 120.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Jiufotang Formation (Jehol Group), Aptian (125.0 - 113.0 Ma)

• said to be Lower Cretaceous (Berriasian-Hauterivian): Aptian assignment based on age of main Beishan Quarry level.

• bed-level stratigraphic resolution

Environment/lithology: lacustrine; shale

• From picture color of shale is yellowish brown

Size class: macrofossils

Preservation: adpression

Collection methods: Dalian Natural History Museum , Dalian , China

Primary reference: D. Ren, J. Y. Liu, and X. D. Cheng. 2003. A new hemeroscopid dragonfly from the Lower Cretaceous of Northeast China (Odonata: Hemeroscopidae). Acta Entomologica Sinica 46(5):622-628 [M. Clapham/J. Karr/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 105248: authorized by Matthew Clapham, entered by Jered Karr on 18.02.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Insecta
 Odonata - Hemeroscopidae
Abrohemeroscopus mengi n. gen. n. sp.
Abrohemeroscopus mengi n. gen. n. sp. Ren et al. 2003 true dragonfly
Reptilia
 Choristodera -
? Hyphalosaurus sp.
? Hyphalosaurus sp. Gao et al. 1999 choristodere
Abundant