Where: El Paso County, Texas (32.0° N, 106.6° W: paleocoordinates 4.4° S, 41.0° W)
• coordinate estimated from map
When: Bishop Cap Member (Magdalena Formation), Desmoinesian (312.8 - 306.0 Ma)
• lower middle part of the Bishop Cap Member, Magdalena Formation (Des Moinesian)
Environment/lithology: shallow subtidal; lithified, brown, gray, argillaceous limestone
•aptychi were found in the lower middle part of the formation in a 45-cm-thick bed of argillaceous limestone. This bed, which strikes N5°W and dips 45°W, is a dense, dark-gray, fine-grained limestone that weathers light brown
Size classes: macrofossils, mesofossils
Preservation: mold/impression
Primary reference: E.H. Thompson, E.L. Yochelson, and R.H. Flower. 1980. Aptychi from the Pennsylvanian of West Texas. Journal of Paleontology 54(5):903-909 [B. Seuss/B. Seuss/B. Seuss]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 216619: authorized by Barbara Seuss, entered by Barbara Seuss on 22.12.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Crinoidea | |
| |
Stenolaemata | |
Fenestrata indet. Elias and Condra 1957 | |
Strophomenata | |
Neochonetes sp. Muir-Wood 1962
Mesolobus sp. Dunbar and Condra 1932 | |
Desmoinesia sp. Hoare 1960 | |
Rhynchonellata | |
Neospirifer sp. Fredericks 1919 | |
Crurithyris sp. George 1931 | |
Punctospirifer sp. North 1920 | |
Scaphopoda | |
| |
Gastropoda | |
Bellerophon sp. de Montfort 1808 snail
Knightites sp. Moore 1941 snail | |
Euphemites sp. Warthin 1930 snail | |
Orthonema sp. Meek and Worthen 1862 snail | |
Goniasma sp. Tomlin 1930 snail | |
Shansiella sp. Yin 1932 snail | |
Gosseletina sp. Fischer 1885 snail | |
Paragoniozona sp. Nelson 1947 snail | |
Soleniscus sp. Meek and Worthen 1860 snail
Ianthinopsis sp. Meek and Worthen 1866 snail | |
Bivalvia | |
Nucula sp. Lamarck 1799 nut clam | |
Nuculana sp. Link 1807 pointed nut clam | |
Phestia sp. Chernyshev 1951 clam | |
Streblochondria sp. Newell 1938 scallop | |
Edmondia sp. de Koninck 1841 clam | |
Astartella sp. Hall 1858 clam | |
Cephalopoda | |
| |
Metacoceras sp. Hyatt 1883
? Tainoceras sp. Hyatt 1883 | |
Liroceras sp. Teichert 1940 | |
Cornaptychus sp. Trauth 1927 ammonoid aptychus | |
Pseudorthoceras knoxense McChesney 1859 | |
Heteractinida | |
Regispongia sp. Rigby 1978 |