Where: Clark County, Nevada (36.6° N, 114.8° W: paleocoordinates 9.9° N, 38.5° W)
• coordinate based on unpublished field data
• small collection-level geographic resolution
When: Bird Spring Formation, Artinskian (290.1 - 279.3 Ma)
• Bed "I" is approximately 5 feet thick
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, gray, argillaceous, silty limestone
Size classes: macrofossils, mesofossils, microfossils
Preservation: replaced with silica
Collection methods: bulk, chemical,
Primary reference: L. P., J.r. Plas. 1972. Upper Wolfcampian (?) Mollusca from the Arrow Canyon Range, Clark County, Nevada. Journal of Paleontology 46(2):249-260 [D. Bottjer/M. Clapham/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 39157: authorized by David Bottjer, entered by Matthew Clapham on 21.05.2004, edited by Pete Wagner and Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
Ostracoda | |
Kirkbyoidea sp. Ulrich and Bassler 1906 ostracod | |
Bairdioidea spp. Sars 1888 ostracod | |
Trilobita | |
"Phillipsia" sp. Portlock 1843 trilobite | |
Cephalopoda | |
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Scaphopoda | |
Plagioglypta sp. Pilsbry 1898 tusk shell | |
Prodentalium sp. Young 1942 tusk shell | |
Gastropoda | |
Colpites sp. Knight 1936 snail
Naticopsis sp. M'Coy 1844 snail | |
Palaeostylus sp. Mansuy 1914 snail | |
Meekospira spp. Ulrich and Scofield 1897 snail | |
Goniasma spp. Tomlin 1930 snail | |
Orthonema spp. Meek and Worthen 1862 snail | |
Omphalotrochus sp. Meek 1864 snail | |
Amaurotoma zappa n. sp., Glyptospira arelela n. sp.
Amaurotoma zappa n. sp. Plas 1972 snail
Glyptospira arelela n. sp. Plas 1972 snail | |
Anomphalus jaggerius n. sp.
Anomphalus jaggerius n. sp. Plas 1972 snail | |
Sallya sp. Yochelson 1956 snail | |
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Bellerophon ? deflectus Chronic 1952 snail | |
Trachydomia sp. Meek and Worthen 1866 snail | |
Platyworthenia sp. Chronic 1952 snail | |
Apachella spp. Winters 1956 snail | |
Soleniscus sp. Meek and Worthen 1860 snail | |
Polyplacophora | |
Helminthochiton sp. Salter 1846 chiton | |
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Gryphochiton distinctus n. sp.3
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Rostroconchia | |
Minycardita sectilis n. gen. n. sp.2 Hoare and Plas 2003
Minycardita sectilis4 Hoare and Plas 2003 | |
"Hadropipetta nevadaensis n. sp." = Hadropipetta nevadensis2
"Hadropipetta nevadaensis n. sp." = Hadropipetta nevadensis2 Hoare and Plas 2003 | |
Bivalvia | |
Polidevcia sp. Tschernyschev 1943 clam | |
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Bakevellia spp. King 1848 oyster | |
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Grammatodon sp. Meek and Hayden 1860 clam | |
Schizodus sp. King 1844 clam | |
"Allorisma" sp. King 1844 clam | |
Astartella subquadrata Girty 1909 clam | |
Rhynchonellata | |
Composita sp. Brown 1849 | |
Dielasma sp. King 1856 | |
Stenolaemata | |
Cryptostomida spp. Vine 1884 | |
Polychaeta | |
"Spirorbis" sp. Daudin 1800 | |
Gnathostomata | |
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Echinoidea | |
Archaeocidaris sp. M'Coy 1844 sea urchin | |
Crinoidea | |
Crinoidea indet. Miller 1821 Sea lily | |
unclassified | |
Porifera "monaxon indet." Grant 1836 | |
Demospongiae | |
Lithistida indet. demosponge | |
Chlorophyceae | |
"Mizzia cf. yabei" = Stolleyella yabei
"Mizzia cf. yabei" = Stolleyella yabei Karpinsky 1908 | |
Foraminifera | |