Unit 1 (25 ft. below top), upper shale member, Mahantango Fm., New Bloomfield, P (Devonian of the United States)

Where: Pennsylvania (40.4° N, 77.2° W: paleocoordinates 39.1° S, 25.5° W)

• small collection-level geographic resolution

When: Upper shale Member (Mahantango Formation), Givetian (387.7 - 382.7 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; gray claystone

• claystone, micaceous, light to medium olive gray, chippy

Collection methods: surface (in situ),

Primary reference: R. L. Ellison. 1965. Stratigraphy and Paleontology of the Mahantango Formation in south-central Pennsylvania. Pennsylvania Geological Survey Bulletin G48 1-298 [A. Miller/K. Layou]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 9888: authorized by Arnold Miller, entered by Karen Layou on 30.01.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Relative abundance info: present (1 specimen collected), common (2-10 specimens collected), abundant (more than 10 specimens collected), very abundant (sample extremely rich in a given species)
unclassified
  -
Ostracoda
 Podocopida - Bufinidae
Bufina bicornuta ostracod
present
 Podocopida - Quasillitidae
Quasillites sp. Coryell and Malkin 1936 ostracod
abundant
 Podocopida -
Euglyphella numismoides ostracod
present
 Palaeocopida - Beyrichiidae
Hibbardia lacrimosa Kesling 1953 ostracod
present
 Palaeocopida - Hollinidae
Adelphobolbina medialis ostracod
present
Ctenoloculina cicatricosa Warthin 1934 ostracod
common
 Palaeocopida - Bolliidae
Ulrichia spinifera Coryell and Malkin 1936 ostracod
present
Trilobita
 Phacopida - Acastidae
Greenops boothi Green 1837 trilobite
present
 Phacopida - Phacopidae
"Phacops rana" = Eldredgeops rana
"Phacops rana" = Eldredgeops rana Green 1832 trilobite
present
Gastropoda
 Murchisoniina - Gosseletinidae
"Bembexia capillaria" = Dictyotomaria capillaria
"Bembexia capillaria" = Dictyotomaria capillaria Conrad 1842 snail
present
Cephalopoda
 Pseudorthocerida - Spyroceratidae
Bivalvia
 Nuculanida - Malletiidae
Palaeoneilo muta clam
common [entered as Paleoneilo muta]
Palaeoneilo constricta Conrad 1842 clam
common [entered as Paleoneilo constricta]
 Nuculida - Nuculidae
"Nucula lirata" = Nuculoidea lirata
"Nucula lirata" = Nuculoidea lirata Conrad 1842 nut clam
present
 Pectinida - Aviculopectinidae
Aviculopecten equilatera scallop
present
 Carditida - Eodonidae
"Cypricardella bellastriata" = Eodon bellastriatus
"Cypricardella bellastriata" = Eodon bellastriatus Conrad 1842 clam
present
 Modiomorphida - Cypricardiniidae
Cypricardinia indenta Conrad 1842 clam
present
 Modiomorphida - Carydiidae
"Nucula bellastriata" = Carydium bellastriatum
"Nucula bellastriata" = Carydium bellastriatum Conrad 1841 clam
present
 Cardiida - Kalenteridae
Modiella pygmaea clam
present
Strophomenata
 Orthotetida - Schuchertellidae
 Productida - Araksalosiidae
 Strophomenida - Douvillinidae
Douvillina inaequistriata
present (D. inaequistriata var. immatura)
 Strophomenida - Leptostrophiidae
Protoleptostrophia perplana Conrad 1839
common
Rhynchonellata
 Spiriferida - Spinocyrtiidae
Mediospirifer audaculus Conrad 1842
present
 Spiriferida - Elythidae
"Elytha fimbriata" = Elita
"Elytha fimbriata" = Elita
present
 Spiriferida - Cyrtinopsidae
"Delthyris sculptilis" = Megakozlowskiella sculptilis
"Delthyris sculptilis" = Megakozlowskiella sculptilis Hall 1843
present
 Spiriferida -
Pustulatia pustulosa Hall 1860
abundant
 Orthida - Rhipidomellidae
Rhipidomella vanuxemi Hall 1857
present
 Atrypida - Atrypidae
Atrypa reticularis Linnaeus 1758
present
 Athyridida - Athyrididae
Athyris spiriferoides Eaton 1831
present
  - Tropidoleptidae
Tropidoleptus carinatus Conrad 1839
common
Stenolaemata
 Cystoporida - Sulcoreteporidae
 Cryptostomata - Fenestellidae
 Cryptostomata - Acanthocladiidae
Polypora sp.
present