Where: Río Negro, Argentina (39.9° S, 66.6° W: paleocoordinates 42.3° S, 54.7° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Jagüel Formation (Malargüe Group), Late/Upper Maastrichtian (70.6 - 66.0 Ma)
• 0.3 m below the Cretaceous/Paleogene boundary
• bed-level stratigraphic resolution
Environment/lithology: marine; mudstone
Size class: macrofossils
Collected by Hector Cabaza and Museo Municipal de Lamarque in 1998-2001
• MML, Museo Municipal de Lamarque, Rio Negro, Argentina
Primary reference: Z. Gasparini, L. Salgado, and S. Casadio. 2003. Maastrichtian plesiosaurs from northern Patagonia. Cretaceous Research 240:157-170 [P. Mannion/P. Mannion/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 140998: authorized by Philip Mannion, entered by Philip Mannion on 20.03.2013, edited by Franco Aspromonte
Creative Commons license: CC BY (attribution)
Taxonomic list
| Reptilia | |
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Elasmosauridae indet.2 Cope 1869 elasmosaur MML-PV4 (one incomplete cervical vertebra, 13 incomplete dorsals, three sacrals, 24 caudals, two ilia and the left anterior paddle [humerus, radius, ulna, proximal and distal carpals and phalanges)
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Plioplatecarpus sp.1 Dollo 1882 mosasaur MML-PV7, Two cervical, ten dorsal, and twelve caudal vertebrae, one tooth and fragments of a mandible
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