Also known as Archelon type
Where: Fall River County, South Dakota (43.2° N, 103.6° W: paleocoordinates 49.4° N, 73.3° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Pierre Shale Formation, Campanian to Campanian (83.6 - 66.0 Ma)
• "in the uppermost For Pierre or No. 4 of the Upper Cretaceous"
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; lithology not reported
Size classes: macrofossils, mesofossils
Collected by G. R. Wieland; reposited in the YPM
Primary reference: G. R. Wieland. 1896. Archelon ischyros: a ne gigantic cryptodire testudinate from the Fort Pierre Cretaceous of South Dakota. The American Journal of Science, series 4 2(12):399-412 [M. Carrano/M. Carrano/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 167918: authorized by Matthew Carrano, entered by Matthew Carrano on 07.04.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Archelon ischyros n. gen. n. sp.
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Actinopteri | |
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Chondrichthyes | |
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Gnathostomata | |
unclassified | |
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