Archaeoscyphia fauna, Rockdale Run Fm. (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: Rockdale Run Formation, Canadian (485.4 - 457.3 Ma)

• "L. Ord. (Canadian) (upper Canadian)"

Environment/lithology: peritidal; carbonate

• "stromatolitic and associated carbonates. very shallow subtidal and intertidal. 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 428: authorized by Jack Sepkoski, entered by Mike Sommers on 08.12.1998, edited by Torsten Liebrecht

Creative Commons license: CC BY (attribution)

Taxonomic list

• "W. J. Sande. 1957. GSA Mem. 68"
Show authors, comments, and common names
Cephalopoda
 Bisonocerida - Coreanoceratidae
Coreanoceras sp.
Coreanoceras sp. Kobayashi 1931
 Endocerida - Proterocameroceratidae
Stenosiphon sp., Mcqueenoceras sp., Mysticoceras sp., Escharendoceras sp., Platysiphon sp., Retroclitendoceras sp., Lobosiphon sp.
Stenosiphon sp. Flower 1956
Mcqueenoceras sp. Ulrich and Foerste 1936
Mysticoceras sp. Ulrich and Foerste 1936
Escharendoceras sp. Flower 1956
Platysiphon sp. Flower 1956
Lobosiphon sp. Flower 1956
 Ellesmerocerida - Rioceratidae
Rioceras sp.
Rioceras sp. Flower 1964
originally entered as "? Wolungoceras sp."
Gastropoda
 Euomphalina - Raphistomatidae
Ceratopea sp.
Ceratopea sp. Ulrich 1911 snail
Rhynchonellata
 Pentamerida - Syntrophiidae
Xenelasma sp.
 Pentamerida - Tetralobulidae
Doloresella sp.
 Orthida - Finkelnburgiidae
Diparelasma sp.
Diparelasma sp. Ulrich and Cooper 1936
Demospongiae
 Lithistida - Anthaspidellidae
Archaeoscyphia sp.
Archaeoscyphia sp. Hinde 1889 demosponge