Where: Madison County, Arkansas (35.9° N, 94.9° W: paleocoordinates 8.3° S, 32.3° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Cane Hill Member (Cane Hill Formation), Morrowan (323.2 - 318.6 Ma)
• bed-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, lenticular, calcareous sandstone
Size class: macrofossils
Primary reference: W. L. Manger and W. B. Saunders. 1980. Lower Pennsylvanian (Morrowan) ammonoids from the North American midcontinent. Paleontological Society Memoir 10:1-56 [J. Alroy/C. Simpson/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 43108: authorized by John Alroy, entered by Carl Simpson on 10.08.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Reticuloceras tiro Gordon 1969 ammonite
Reticuloceras wainwrighti Quinn 1966 ammonite
Retites semiretia McCaleb 1964 ammonite | |
Syngastrioceras globosum Easton 1943 ammonite
Schartymites paynei Gordon 1964 ammonite | |
Cymoceras cracens ammonite |