Where: Apache County, Arizona (34.9° N, 109.8° W: paleocoordinates 10.6° N, 48.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Blue Mesa Member (Chinle Formation), Norian (228.0 - 208.5 Ma)
• "A fossiliferous light green matrix-supported siltstone in the upper Blue Mesa Member of the Chinle Formation, between 223.036 ± 0.059 and 220.123 ± 0.068 Ma (Ramezani et al. 2011)." (Kligman et al. 2018)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; siltstone
Size class: macrofossils
Collected in 2007
Primary reference: B. T. Kligman, A. D. Marsh, and W. G. Parker. 2018. First records of diapsid Palacrodon from the Norian, Late Triassic Chinle Formation of Arizona, and their biogeographic implications. Acta Palaeontologica Polonica 63(1):117-127 [A. Dunhill/B. Allen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 196662: authorized by Alex Dunhill, entered by Bethany Allen on 27.09.2018, edited by Bryan Gee
Creative Commons license: CC BY (attribution)
Taxonomic list
Gnathostomata | |
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Reptilia | |
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Acaenasuchus geoffreyi3 Long and Murry 1995 aetosaur PEFO 37171 (osteoderm), 37173 (osteoderm), 37181 (osteoderm), 37185 (osteoderm), 37233 (osteoderm), 37245 (osteoderm), 37323 (osteoderm), 37326 (osteoderm), 38264 (osteoderm), 38363 (osteoderm), 40000 (osteoderm)
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Amphibia | |
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Gnathostomata | |
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Osteichthyes | |
Saurichthys sp.2 Agassiz 1834 ray-finned fish Tooth-bearing rostral fragments from upper jaws (PEFO 37397) and lower jaws (PEFO 37394, PEFO 37378), or indeterminate upper or lower jaws (PEFO 37242, PEFO 37344, PEFO 37345, PEFO 37347, PEFO 37348, PEFO 37393, PEFO 373995)
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Gnathostomata | |
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