ammonites
Yiyang (Permian of China)

Also known as PGAP 12040

Where: Henan, China (34.5° N, 112.2° E: paleocoordinates 29.9° N, 89.0° E)

• coordinate estimated from map

When: Shiqianfeng Formation, Changhsingian (254.0 - 252.3 Ma)

Environment/lithology:

Size class: macrofossils

Collection methods: Some marine fossils

Primary reference: Bur. of Geol. and Min. Resources of Henan. 1989. Regional Geology of Henan province. People's Republic of China Ministry of Geology and Mineral Resources, Geological Memoirs 1(17):1-772 [A. Rees/A. Rees] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 29510: authorized by Allister Rees, entered by Allister Rees on 02.04.2003