Where: New Mexico (35.5° N, 105.7° W: paleocoordinates 0.8° S, 36.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Alamitos Formation, Kasimovian to Kasimovian (307.0 - 298.9 Ma)
• Probably the upper part of the Madera Formation, now the Alamitos formation.
• group of beds-level stratigraphic resolution
Environment/lithology: lithified limestone
Size class: macrofossils
Collected by J. Marcou in 1853
Primary reference: J. Marcou. 1858. Geology of North America with two reports on the Prairies of Arkansas and Texas, the Rocky Mountains of New Mexico, and the Sierra Nevada of California 1-144 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 150952: authorized by Matthew Clapham, entered by Matthew Clapham on 18.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
"Terebratula rockymontana n. sp." = Leiorhynchus rockymontanum
"Terebratula rockymontana n. sp." = Leiorhynchus rockymontanum Marcou 1858 | |
"Orthis pecosii n. sp." = Rhipidomella pecosi
"Orthis pecosii n. sp." = Rhipidomella pecosi Marcou 1858 | |
Bivalvia | |
"Myalina apachesi n. sp." = Septimyalina burmai
"Myalina apachesi n. sp." = Septimyalina burmai Newell 1942 clam |