Longjiawa, Anyue (Cretaceous of China)

Where: Sichuan, China (30.2° N, 105.3° E: paleocoordinates 29.1° N, 109.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Suining Formation, Late/Upper Aptian (122.5 - 113.0 Ma)

• near top of formation, just beneath contact with Penglaizheng

•Wang et al. (2019) provide detrital zircon U/Pb mean ages of 114.4±1.1 Ma

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; red mudstone

• "purple-red mudstone'

Size class: macrofossils

Collected in 1987

Collection methods: quarrying, mechanical,

Primary reference: X. He, S. Yang, K. Cai, K. Li, and Z. Liu. 1996. [A new species of sauropod, Mamenchisaurus anyuensis sp. nov.]. Papers on Geosciences Contributed to the 30th International Geological Congress 83-86 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 58977: authorized by Matthew Carrano, entered by Matthew Carrano on 02.03.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines -
"Chelonia indet." = Testudines
"Chelonia indet." = Testudines Batsch 1788 turtle
 Theropoda - Metriacanthosauridae
Yangchuanosaurus sp. Dong et al. 1978 allosauroid
 Saurischia - Mamenchisauridae
Mamenchisaurus anyuensis He et al. 1996 mamenchisaurid
AL002, AL003, AL101-106.