Lower Rockdale Run Fm., "Lecanospira fauna," Canadian (Ordovician of the United States)
Where: Maryland (39.6° N, 77.8° W: paleocoordinates 31.6° S, 70.3° W)
• coordinate based on political unit
When: lower Member (Rockdale Run Formation), Canadian (485.4 - 457.3 Ma)
• "lower Rockdale run"
Environment/lithology: peritidal; carbonate
• "stromatolitic and associated carbonates. very shallow subtidal to intertidal (BA1) ocean facing stable shelf."
Size class: macrofossils
Primary reference: W. J. Sando. 1957. Beekmantown Group (Lower Ordovician) of Maryland. Geological Society of America Memoir 68:1-159 [P. Wagner/P. Wagner/J. Ju]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 285: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
• "W.J.Sando 1957. GSA Mem. 68"
Show authors, comments, and common names
| Anthozoa | |
|
Lichenaria sp. Winchell and Schuchert 1895 tabulate coral | |
| Trilobita | |
|
Hystricurus sp. Raymond 1913 trilobite | |
| Cephalopoda | |
Phragmosiphon sp., Proterocameroceras sp., Clitendoceras sp., Escharendoceras sp., Pliendoceras sp., Mcqueenoceras sp., Platysiphon sp.
Phragmosiphon sp. Flower 1956
Proterocameroceras sp. Ruedemann 1905
Clitendoceras sp. Ulrich and Foerste 1936
Escharendoceras sp. Flower 1956
Pliendoceras sp. Flower 1956
Mcqueenoceras sp. Ulrich and Foerste 1936
Platysiphon sp. Flower 1956 | |
| Gastropoda | |
|
Lecanospira ? compacta Salter 1859 snail
Ecculiomphalus sp. Portlock 1843 snail
Ophileta sp. Vanuxem 1842 snail | |
Macluritella marylandica n. sp.
Macluritella marylandica n. sp. Sando 1957 snail | |
| Rhynchonellata | |