YHS203, Maomi, Jinggu County (Jurassic to of China)

Where: Yunnan, China (23.3° N, 100.2° E: paleocoordinates 19.5° N, 101.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hepingxiang Formation, Bajocian to Bajocian (170.3 - 166.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

• Hepingxiang Formation is mostly lacustrine, but these genera are marine taxa

Size class: macrofossils

Preservation: mold/impression

Reposited in the NIGPAS

Primary reference: H. Z. Pan. 1977. Mesozoic and Cenozoic fossil Gastropoda from Yunnan. Mesozoic Fossils from Yunnan 2:83-152 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165449: authorized by Matthew Clapham, entered by Matthew Clapham on 19.01.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Architaenioglossa - Ampullinidae
Naricopsina jingguensis n. sp. Pan 1977 snail
 Trochoidea - Ataphridae
Ataphrus ovulatus Hebert and Deslongchamps 1860 snail