Where: Coahuila, Mexico (26.3° N, 102.9° W: paleocoordinates 2.3° S, 35.0° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Palo Quemado Formation, Roadian (272.3 - 268.8 Ma)
• Middle (?) Guadalupe
• group of beds-level stratigraphic resolution
Environment/lithology: lithified, cherty/siliceous limestone
Size classes: macrofossils, microfossils
Reposited in the YPM
Primary reference: R. E. King. 1944. Geology, Part I of Geology and paleontology of the Permian area northwest of Las Delicias, southwestern Coahulia, Mexico. Geological Society of America Special Paper 52:3-33 [T. Olszewski/L. Fall/L. Fall]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 63057: authorized by Tom Olszewski, entered by Leigh Fall on 03.08.2006, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Foraminifera | |
Parafusulina sellardsi Dunbar and Skinner 1937 | |
Cephalopoda | |
"Pseudogastrioceras roadense" = Roadoceras roadense
"Pseudogastrioceras roadense" = Roadoceras roadense Böse 1919 ammonite | |
Rhynchonellata | |
Rhynchopora taylori Girty 1910 | |
Stenoscisma kingi n. sp.
Stenoscisma kingi n. sp. Cloud 1944 | |
| |
Dielasma aff. spatulatum Girty 1908 | |
Strophomenata | |
"Leptodus cf. americanus" = Collemataria americana
"Leptodus cf. americanus" = Collemataria americana Girty 1908 | |
"Marginifera popei" = Liosotella popei
| |
"Avonia costata" = Costispinifera costata
"Avonia costata" = Costispinifera costata King 1931 | |
"Dictyoclostus deminutivus" = Yakovlevia deminutiva
"Dictyoclostus deminutivus" = Yakovlevia deminutiva Cloud 1944 | |
"Waagenoconcha cf. montpelierensis" = Bathymyonia nevadensis
"Waagenoconcha cf. montpelierensis" = Bathymyonia nevadensis Meek 1877 | |
"Streptorhynchus cf. gregarium" = Tropidelasma gregarium
"Streptorhynchus cf. gregarium" = Tropidelasma gregarium Girty 1908 |