Where: Sonora, Mexico (30.8° N, 112.6° W: paleocoordinates 11.7° N, 40.3° W)
• coordinate estimated from map
• local area-level geographic resolution
When: Antimonio Formation, Wordian (266.9 - 264.3 Ma)
• "Monos Beds"; Upper part of Spiriferellina Zone (uppermost zone in succession)
Environment/lithology: marine; blue, cherty/siliceous limestone
Size class: macrofossils
Preservation: replaced with silica
Primary reference: G. A. Cooper, C. O. Dunbar, H. Duncan, A. K. Miller, and J. B. Knight. 1953. Permian fauna at El Antimonio, western Sonora, Mexico. Smithsonian Miscellaneous Collections 119(2):1-111 [D. Bottjer/M. Clapham/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 40812: authorized by David Bottjer, entered by Matthew Clapham on 01.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Hustedia sp., Hustedia elongata n. sp.
Hustedia sp. Hall and Clarke 1893
Hustedia elongata n. sp. Cooper 1953 | |
Wellerella lemasi minor Cooper 1953 | |
"Spiriferellina sonorensis" = Reticulariina sonorensis
"Spiriferellina sonorensis" = Reticulariina sonorensis Cooper 1953 | |
Strophomenata | |
"Chonetes" monosensis n. sp.
"Chonetes" monosensis n. sp. Cooper 1953 | |
Liosotella sp., Liosotella subrugosa n. sp.
Liosotella sp. Cooper 1953
Liosotella subrugosa n. sp. Cooper 1953 | |
"Dictyoclostus" sp. Muir-Wood 1930 | |
"Waagenoconcha montpelierensis" = Bathymyonia nevadensis
"Waagenoconcha montpelierensis" = Bathymyonia nevadensis Meek 1877 | |
Scaphopoda | |
Plagioglypta sp. Pilsbry 1898 tusk shell | |
Gastropoda | |
"Euphemites subpapillosus" = Euphemitopsis subpapillosa, "Stachella sp." = Warthia
"Euphemites subpapillosus" = Euphemitopsis subpapillosa White 1876 snail
"Stachella sp." = Warthia Waagen 1880 snail | |
? Pleurotomaria "sp. C" Defrance 1826 snail | |
unclassified | |
Porifera indet. Grant 1836 |