Williams Road on Polish Mountain, 1660 (Devonian of the United States)

Where: Allegany County, Maryland (39.7° N, 78.8° W: paleocoordinates 36.7° S, 27.6° W)

When: Parkhead Member (Jennings Formation), Frasnian (382.7 - 372.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; green shale

• Fissile green shale

Size class: macrofossils

Reposited in the USNM

Primary reference: C.M. Prosser and E.M. Kindle. 1913. Systematic paleontology of the Middle Devonian deposits of Maryland. Systematic paleontology of the Middle Devonian deposits of Maryland 115-338 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 154838: authorized by Pete Wagner, entered by Pete Wagner on 15.03.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

• Atrypa reticularis

•Camarotaechia congrcgata contracta

•Craniella hamiltonia

•Cyrtina hamiltonensis

•Productella lachrymosa

•Schizophoria impressa

•Spiriler (Delthyris) mesaeostalis

•Spiriler mareyi superstes

•Tropidoleptus carinatus

•Coleolus tenuicinetus

•Goniophora truncata

•Liopteria bigsbyi

•Cypricardella sp.

Show authors, comments, and common names
Bivalvia
 Cardiida -
Cypricardella tenuistriata
Cypricardella tenuistriata Hall and Whitfield 1869 clam
Gastropoda
 Euomphalina -
"Cyclonema concinnum" = Kitikamispira concinna, "Cyclonemina multistriata" = Kitikamispira multistriata
"Cyclonema concinnum" = Kitikamispira concinna Hall 1876 snail
"Cyclonemina multistriata" = Kitikamispira multistriata Clarke and Swartz 1913 snail
 Euomphalina - Euomphalidae
"Straparollus marylandicus" = Philoxene cyclostomus
"Straparollus marylandicus" = Philoxene cyclostomus Hall 1858 snail
 Euomphalina - Platyceratidae
Platyceras marylandicum
Platyceras marylandicum Clarke and Swartz 1913 snail
 Cyrtoneritida - Orthonychiidae
Orthonychia unguiculata
Orthonychia unguiculata Clarke and Swartz 1913 snail
 Bellerophontida - Bellerophontidae
"Bucanopsis maera" = Aglaoglypta maera, Bellerophon clarki
"Bucanopsis maera" = Aglaoglypta maera Hall 1876 snail
Bellerophon clarki Clarke and Swartz 1913 snail
 Murchisoniina - Hormotomidae
"Ectomaria marylandica" = Gyrodoma marylandica
"Ectomaria marylandica" = Gyrodoma marylandica Clarke and Swartz 1913 snail
 Murchisoniina - Palaeozygopleuridae
"Loxonema hamiltoniae" = Palaeozygopleura hamiltoniae, "Loxonema styliolum" = Palaeozygopleura styliola, "Loxonema ? glabrum" = Palaeozygopleura glabra
"Loxonema hamiltoniae" = Palaeozygopleura hamiltoniae Hall 1859 snail
"Loxonema styliolum" = Palaeozygopleura styliola Hall 1876 snail
"Loxonema ? glabrum" = Palaeozygopleura glabra Clarke and Swartz 1913 snail