Also known as Sierra de La Colonia
Where: Chubut, Argentina (43.0° S, 67.6° W: paleocoordinates 45.3° S, 56.0° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: La Colonia Formation, Maastrichtian (72.1 - 66.0 Ma)
• Lower part of the second facies association (sensu Pascual et al., 2000) of the La Colonia Formation
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•La Colonia Fm = Maastrichtian (Clyde et al. 2021)
• bed-level stratigraphic resolution
Environment/lithology: estuary or bay; lithology not reported
Size class: macrofossils
Collected in 2012 and 2015
Primary reference: J. P. O'Gorman. 2021. The most complete specimen of Kawanectes lafquenianum (Sauropterygia, Plesiosauria): new data on basicranial anatomy and possible sexual dimorphism in elasmosaurids. Cretaceous Research 125(104836):1-19 [P. Mannion/P. Mannion/F. Aspromonte]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 219277: authorized by Philip Mannion, entered by Philip Mannion on 06.04.2021
Creative Commons license: CC BY (attribution)
Taxonomic list
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Kawanectes lafquenianum Gasparini and Goni 1985 elasmosaur MPEF-PV 11545, right quadrate, basioccipital and basiparasphenoid, midd sector of right mandibular ramus, twentyeight cervical vertebrae, fifteen dorsal vertebrae, three sacral vertebrae and twenty-five caudal vertebrae, mostly represented by vertebral centra. Cervical, dorsal, sacral and caudal ribs and gastralia. Ischium, ilium, both femurs, proximal part of humerus and incomplete radius, ulna, tibia fibula and tarsal/carpal element and phalanges, and approximately 240 gastroliths
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