Unit 1(4ft below top), Upper Shale Member Mahantango Fm, Girty's Notch, PA (Devonian of the United States)

Where: Pennsylvania (40.5° N, 76.9° W: paleocoordinates 39.1° S, 25.2° 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, silty shale

• Shale, silty olive gray, weathering brownish gray and greenish gray

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 9991: authorized by Arnold Miller, entered by Karen Layou on 06.02.2001, edited by Alycia Stigall

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)
Show authors, comments, and common names
unclassified
  -
Zaphrentoidea indet.
Gastropoda
 Euomphalina - Platyceratidae
Playceras (Platyostoma) sp.
Playceras (Platyostoma) sp. Conrad 1842 snail
present
Bivalvia
 Nuculanida - Malletiidae
Palaeoneilo constricta
Palaeoneilo constricta Conrad 1842 clam
 Ostreida - Pterineidae
"Ptychopteria (Actinopteria) decussata" = Actinopteria
"Ptychopteria (Actinopteria) decussata" = Actinopteria oyster
Rhynchonellata
 Orthida - Rhipidomellidae
Rhipidomella vanuxemi
Rhipidomella vanuxemi Hall 1857
present
Trilobita
 Phacopida - Phacopidae
"Phacops rana" = Eldredgeops rana
"Phacops rana" = Eldredgeops rana Green 1832 trilobite
common