YHW239, Fengdeng, Changxin, Yunlong County (Jurassic to of China)

Where: Yunnan, China (26.1° N, 99.4° E: paleocoordinates 9.6° N, 94.8° 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 165451: authorized by Matthew Clapham, entered by Matthew Clapham on 19.01.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Architaenioglossa - Ampullinidae
Ampullina cf. lorierei
Ampullina cf. lorierei d'Orbigny 1850 snail
 Sorbeoconcha - Vitrinellidae
Vitrinella sp.
Vitrinella sp. Adams 1850 snail
 Neritoidea - Neridomidae
Neritoma (Neridomus) cf. gea
Neritoma (Neridomus) cf. gea d'Orbigny 1850 snail
 Trochoidea - Nododelphinulidae
Helicacanthus pervis n. sp.
Helicacanthus pervis n. sp. Pan 1977 snail
 Vetigastropoda - Discohelicidae
Discohelix calculus
Discohelix calculus Sandberger 1870 snail
 Seguenzioidea - Eucyclidae
Purpurina (Eucycloidea) orientalis n. sp.