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"; Spiriferellina Zone is uppermost in the 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 40816: authorized by David Bottjer, entered by Matthew Clapham on 01.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
"Waagenoconcha montpelierensis" = Bathymyonia nevadensis
"Waagenoconcha montpelierensis" = Bathymyonia nevadensis Meek 1877 | |
"Dictyoclostus depressus" = Thamnosia depressa
| |
Liosotella subrugosa Cooper 1953
Liosotella rugosa Cooper 1953 | |
Rhynchonellata | |
Hustedia shumardi Torres-Martínez et al. 2016 | |
Composita grandis Cooper 1953 | |
Wellerella lemasi minor Cooper 1953 | |
Rhynchopora taylori rotunda Cooper 1953 | |
Glossothyropsis magna Cooper 1953 | |
Heterelasma contrerasi Cooper 1953 | |
Dielasma floresi n. sp.
Dielasma floresi n. sp. Cooper 1953 | |
Scaphopoda | |
"Plagioglypta canna" = Prodentalium canna
"Plagioglypta canna" = Prodentalium canna White 1874 tusk shell | |
Cephalopoda | |
Waagenoceras dieneri Böse 1919 ammonite | |
Anthozoa | |
Lophophyllidium sp. Grabau 1928 horn coral | |
unclassified | |
Porifera indet. Grant 1836 |