Also known as Harvard University Gold Springs Quarry, Eocaecilia Quarry
Where: Coconino County, Arizona (35.8° N, 111.1° W: paleocoordinates 19.4° N, 49.8° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Silty Facies Member (Kayenta Formation), Sinemurian to Sinemurian (199.3 - 182.7 Ma)
• Palynoflorulle, Scelidosaurus scutes, and magnetostratigraphy suggests Kayenta may be Sinemurian and/or Pliensbachian (Curtis and Padian 1999). Oligokyphus collected from the middle third of the Kayenta sequence (Sues 1985).
• bed-level stratigraphic resolution
Environment/lithology: "floodplain"; paleosol/pedogenic, green, red, blue, silty claystone
Size classes: mesofossils, microfossils
Collected in 1981; reposited in the MCZ
Collection methods: bulk, surface (float), sieve,
• MNA, Museum of Northern Arizona
Primary reference: F. A. Jenkins, Jr., A. W. Crompton, and W. R. Downs. 1983. Mesozoic mammals from Arizona: new evidence on mammalian evolution. Science 222:1233-1235 [R. Whatley/R. Whatley/M. Carrano]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 27716: authorized by John Alroy, entered by Robin Whatley on 23.12.2002, edited by Matthew Carrano, John Alroy and Bethany Allen
Creative Commons license: CC BY (attribution)
Taxonomic list
•Tritylodontidae indet. (MCZ 8845, 8848) is represented by juvenile individuals and is distinct from Oligokyphus sp. (Sues 1985).
unclassified | |
Vertebrata indet.2 Lamarck 1801 MCZ 9056; MCZ 9063, 9064, jaws; MCZ 9073-9078, limb bones; MCZ 9205, 9206, limb bones; MCZ 9065, bone fragment; MCZ 9079-9081, 13 fragmentary bones;MCZ 9087, 9088, unidentified elements
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Reptilia | |
Diapsida indet.2 diapsid MCZ 9177-9184, teeth; catalogued as 8 specimen numbers but may represent up to 31 teeth
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? Archosauria indet.2 archosaur MCZ 9189-9196, + 1 uncatalogued specimen, teeth; MCZ 9197 + 2 uncatalogued specimens, vertebrae
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Navajosphenodon sani n. gen. n. sp.8
Navajosphenodon sani n. gen. n. sp.8 Simões et al. 2022 lepidosaur MNA.V.12442 (holotype, previously cataloged as MCZ VP 9016), a fully articulated skeleton, including the skull, mandibles, axial and appendicular skeleton; also MCZ VP 9098, MCZ VP 101562, MCZ VP 9099, MCZ VP 101564, MCZ VP 101575, MCZ VP 9094, MCZ VP 9102, MCZ VP 9103, MCZ VP 101569, MCZ VP 101563, MNA.V.8726(A-F), MNA.V.8727
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Osteichthyes | |
Dinnetherium nezorum n. gen. n. sp.
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Amphibia | |
Lissamphibia indet.2 tetrapod MCZ 9025-9028, jaws; MCZ 9031, 9032, vertebrae; MCZ 9035, atlas vertebra; MCZ 9034 + 4 uncatalogued specimens, proximal femora; MCZ 9066, 9067, proximal humeri
Eocaecilia micropodia n. gen. n. sp.5 Jenkins and Walsh 1993 tetrapod MNA V8066 (type); MNA V8053, 8054, 8055, 8057, 8058, 8059, 8060, 8062, 8063, 8064, 8065, 8066, 8067, 8068, 8069, 8070, 8071, 8072, 8073, 9346; MCZ 9011A, 9015, 9095, 9152, 9156. 9158, 9163, 9166, 9167, 9169A, 9171A, 9173, 9231A, 9233, 9235, 9237, 9238A, 9241, 9242
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Prosalirus bitis n. gen. n. sp.7
Prosalirus bitis n. gen. n. sp.7 Shubin and Jenkins 1995 frogs and relatives MNA V 8725 (type), MCZ 9324 A, MCZ 9323 A
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Gnathostomata | |
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