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"; Composita Zone is second-highest in succession
Environment/lithology: marine; shelly/skeletal, 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 40818: authorized by David Bottjer, entered by Matthew Clapham on 01.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
| Strophomenata | |
|
Derbyia sp. Waagen 1884 | |
|
Liosotella rugosa Cooper 1953 | |
|
Marginifera "sp. 2" Waagen 1884 | |
"Waagenoconcha montpelierensis" = Bathymyonia nevadensis
"Waagenoconcha montpelierensis" = Bathymyonia nevadensis Meek 1877 | |
| Rhynchonellata | |
"Pseudomartinia martinezi n. sp." = Martinia martinezi
"Pseudomartinia martinezi n. sp." = Martinia martinezi Cooper 1953 | |
"Spiriferellina sonorensis" = Reticulariina sonorensis
"Spiriferellina sonorensis" = Reticulariina sonorensis Cooper 1953 | |
Glossothyropsis magna n. sp.
Glossothyropsis magna n. sp. Cooper 1953 | |
|
Rhynchopora taylori Girty 1910 | |
Wellerella lemasi n. sp., Wellerella hemiplicata n. sp.
Wellerella lemasi n. sp. Cooper 1953
Wellerella hemiplicata n. sp. Cooper 1953 | |
|
Composita grandis Cooper 1953 | |
| Anthozoa | |
|
Rugosa indet. horn coral | |