Where: Nevada (41.6° N, 114.1° W: paleocoordinates 12.1° N, 37.5° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Meekoceras gracilitatis ammonoid zone, Thaynes Formation, Smithian (251.3 - 247.2 Ma)
• Sample from 20 cm thick gray limestone at stratigraphic base of Meekoceras bed
• bed-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, gray limestone
Size class: macrofossils
Primary reference: J. F. Jenks, A. Brayard, T. Brühwiler and H. Bucher. 2010. New Smithian (Early Triassic) ammonoids from Crittenden Springs, Elko County, Nevada: implications for taxonomy, biostratigraphy and biogeography. New Mexico Museum of Natural History and Science Bulletin 48:1-41 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 97117: authorized by Matthew Clapham, entered by Matthew Clapham on 18.07.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Pseudosageceras multilobatum Noetling 1905 ceratite | |
Pseudaspenites balinii n. sp. Jenks et al. 2010 ceratite
Aspenites cf. acutus Hyatt and Smith 1905 ceratite | |
Euflemingites cirratus White 1879 ceratite
Anaflemingites silberlingi Kummel and Steele 1962 ceratite | |
Owenites koeneni Hyatt and Smith 1905 ceratite | |
Parussuria compressa Hyatt and Smith 1905 ceratite | |
Juvenites septentrionalis Smith 1932 ceratite
Juvenites thermarum Smith 1927 ceratite | |
Meekoceras cf. gracilitatis White 1879 ceratite
Meekoceras gracilitatis White 1879 ceratite | |
"Dieneroceras knechti" = Dieneroceras dieneri, Dieneroceras spathi
"Dieneroceras knechti" = Dieneroceras dieneri Hyatt and Smith 1905 ceratite
Dieneroceras spathi Kummel and Steele 1962 ceratite | |
Paranannites slossi Kummel and Steele 1962 ceratite
Paranannites aspenensis Hyatt and Smith 1905 ceratite
Paranannites mulleri Kummel and Steele 1962 ceratite | |
Arctoceras tuberculatum Smith 1932 ceratite |