ammonites
Songgou, Zhangying (Cretaceous to of China)

Where: Henan, China (33.4° N, 111.7° E: paleocoordinates 31.2° N, 103.3° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Majiacun Formation, Coniacian to Coniacian (89.3 - 70.6 Ma)

• lowr-middle part of formation (Coniacian-Santonian??)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; red siliciclastic sediments

• based on observations of photographs in published paper

Size class: macrofossils

Primary reference: J. Lü, L. Xu, Y. Liu, X. Zhang, S. Jia, and Q. Ji. 2010. A new troodontid theropod from the Late Cretaceous of central China, and the radiation of Asian troodontids. Acta Palaeontologica Polonica 55(3):381-388 [M. Carrano/M. Carrano] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101070: authorized by Matt Carrano, entered by Matt Carrano on 16.12.2010