Jacha Khatawi Hill, fish horizon 2, Yaurichambi (Permian of Bolivia)

Where: Bolivia (16.3° S, 68.5° W: paleocoordinates 32.9° S, 48.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Copacabana Formation, Asselian (298.9 - 295.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, gray, white, cherty/siliceous limestone and lithified, red sandstone

• Thick calcareous red sandstone layer

Size class: macrofossils

Collected by D. Merino-Rodo, P. Janvier, M. Suarez-Riglos, G. Rodrigo in 1984

Collection methods: quarrying, chemical,

Primary reference: D. Merino-Rodo and P. Janvier. 1986. Chondrichthyan and actinopterygian remains from the Lower Permian Copacabana Formation of Bolivia. Geobios 19(4):479-493 [M. Clapham/D. Robinson]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 117946: authorized by Matthew Clapham, entered by David Robinson on 29.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Chondrichthyes
 Eugeneodontiformes - Helicoprionidae
Parahelicoprion mariosuarezi n. sp.
Parahelicoprion mariosuarezi n. sp. Merino-Rodo and Janvier 1986 chimaera