Dead Mans Branch, Alamo Canyon, Lake Valley Formation, Arcente Member, Otero (Carboniferous of the United States)
Where: New Mexico (32.8° N, 105.8° W: paleocoordinates 16.1° S, 50.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Arcente Member (Lake Valley Formation), Osagean (353.8 - 342.8 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: offshore shelf; lithified lime mudstone and lithified, calcareous shale
• deep shelf to offshelf oxygen-poor environments
• rhythmically-bedded, dark gray, argillaceous, pyritic lime mudstone interbedded with dark gray calcareous shale
Size class: macrofossils
Primary reference: D. K. Brezinski. 2000. Lower Mississippian trilobites from southern New Mexico. Journal of Paleontology 74(6):1043-1064 [W. Kiessling/U. Merkel] more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 64760: authorized by Wolfgang Kiessling, entered by Uta Merkel on 14.09.2006