Where: Pershing County, Nevada (40.0° N, 117.6° W: paleocoordinates 10.5° N, 41.6° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Gymnotoceras rotelliformis ammonoid zone, Fossil Hill Member (Favret Formation), Illyrian (247.2 - 242.0 Ma)
• "Basal Gymnotoceras rotelliformis is approximately the tethyan Paraceratities trinodotus zone" [Illyrian; Anisian]
Environment/lithology: marginal marine; lithified, brown, calcareous mudstone
Size class: macrofossils
Preservation: concretion
Reposited in the FMNH
Collection methods: quarrying, surface (in situ)
Primary reference: P. M. Sander, O. C. Rieppel, and H. Bucher. 1997. A new pistosaurid (Reptilia: Sauropterygia) from the Middle Triassic of Nevada and its implications for the origin of the plesiosaurs. Journal of Vertebrate Paleontology 17(3):526-533 [M. Carrano/H. Street]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 98011: authorized by Matthew Carrano, entered by Hallie Street on 15.09.2010, edited by Bethany Allen
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
"Mixosaurus callawayi n. sp." = Phalarodon callawayi
"Mixosaurus callawayi n. sp." = Phalarodon callawayi Schmitz et al. 2004 ichthyosaur CMC VP 7275 (holotype), FMNH PR 1804
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Augustasaurus hagdorni n. gen. n. sp.
Augustasaurus hagdorni n. gen. n. sp. Sander et al. 1997 diapsid FMNH PR 1974, anterior half of skeleton including skull
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