Where: Río Negro, Argentina (40.7° S, 67.2° W: paleocoordinates 43.5° S, 53.0° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Middle Member (Allen Formation), Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)
• "The sediments are compared to those from the Pellegrini lake area referred to the middle member of the Allen Formation."
• bed-level stratigraphic resolution
Environment/lithology: lacustrine; mudstone and fine-grained sandstone
Size class: macrofossils
Collection methods: Museo Municipal de Ciencias Naturales "Carlos Darwin" of the city of Punta Alta, Buenos Aires Province MPA 86-86-1C
Primary reference: M. de la Fuente, F. de Lapparent de Broin, and T. M. Bianco. 2001. The oldest and first nearly complete skeleton of a chelid, of the Hydromedusa sub-group (Chelidae, Pleurodira), from the Upper Cretaceous of Patagonia. Bulletin de la Société Géologique de France 172(2):237-244 [J. Alroy/E. Leckey/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 37039: authorized by John Alroy, entered by Erin Leckey on 24.02.2004, edited by Roger Benson and Matthew Carrano
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
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Yaminuechelys gasparinii n. gen. n. sp. de la Fuente et al. 2001 sideneck turtle almost complete specimen
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Osteichthyes | |
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Actinopteri | |
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Gnathostomata | |
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Chondrichthyes | |
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