Linguloid fauna of the Orthorhynchula-Ambonychia community, Reedsville and Marti (Ordovician of the United States)

Where: Maryland (39.3° N, 77.7° W: paleocoordinates 29.2° S, 55.3° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Late/Upper Ordovician (458.4 - 443.8 Ma)

• "U. Ord. Reedsville and Martinsburg Fm.s"

Environment/lithology: transition zone or lower shoreface; siltstone

• "sand-silt. very shallow water, near strandline"

Size class: macrofossils

Primary reference: P. W. Bretsky. 1970. Upper Ordovician Ecology of the Central Appalachians. Bulletin of the Peabody Museum of Natural History 34:1-150 [M. Uhen/J. Ju/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 408: authorized by Jack Sepkoski, entered by Mike Sommers on 03.12.1998

Creative Commons license: CC BY (attribution)

Taxonomic list

• "P.W. Bretsky, 1969. Central Appalachian Late Ord. Communities. GSA Bull. 80:193-212. P.W. Bretsky, 1970. Upper Ord. ecology of the central Appalachians. Peabody Mus. Nat. Hist. Bull. 34 150pp."
Bivalvia
 Modiomorphida - Allodesmatidae
? Ischyrodonta truncata clam
'biovolume rank' (Walker 1972) - originally entered as "? Ischyrodonta truncata"
 Solemyida - Ctenodontidae
Tancrediopsis cuneata Hall 1856 clam
'biovolume rank' (Walker 1972)
Gastropoda
 Bellerophontida - Bucaniidae
? Bucania sp. Hall 1847 snail
'biovolume rank' (Walker 1972) - originally entered as "? Bucania sp."
 Bellerophontida - Plectonotidae
? Plectonotus sp. Clarke 1899 snail
'biovolume rank' (Walker 1972) - originally entered as "? Plectonotus sp."
Lingulata
 Lingulida - Lingulidae
? Lingula sp. BruguiƩre 1797
'biovolume rank' (Walker 1972) - originally entered as "? Lingula sp."