Where: Sonora, Mexico (30.7° N, 112.6° W: paleocoordinates 12.0° N, 53.9° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Lower Member (Antimonio Formation), Norian (228.0 - 208.5 Ma)
• based on ammonites
• group of beds-level stratigraphic resolution
Environment/lithology: open shallow subtidal; gray limestone and fine-grained sandstone
Size class: macrofossils
Preservation: cast, mold/impression
Collection methods: bulk, surface (float),
Primary reference: G. D. Stanley, Jr., C. Gonzalez-Leon, M. R. Sandy, B. Senowbari-Daryan, P. Doyle, M. Tamura, and D. H. Erwin. 1994. Upper Triassic invertebrates from the Antimonio Formation, Sonora, Mexico. The Paleontological Society Memoir 36:1-33 [M. Aberhan/S. Nurnberg/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 39170: authorized by Martin Aberhan, entered by Sabine Nürnberg on 23.05.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Anthozoa | |
Alpinophyllia flexuosa Roniewicz 1989 stony coral | |
Chondrocoenia waltheri Frech 1890 stony coral | |
Distichomeandra austriaca Frech 1890 stony coral | |
Retiophyllia sp. Cuif 1966 stony coral
Retiophyllia norica Frech 1890 stony coral | |
Hydrozoa | |
Heterastridium conglobatum Reuss 1854 fire coral | |
unclassified | |
| |
Demospongiae | |
Cinnabaria expansa Seilacher 1962 demosponge
"Fania polystoma" = Fanthalamia polystoma Seilacher 1962 demosponge
Nevadathalamia cylindrica Seilacher 1962 demosponge | |
Malacostraca | |
Palaxius shastaensis Kristan-Tollmann 1983 decapod | |
Rhynchonellata | |
Pseudorhaetina antimoniensis Sandy 1994 |