Unit 2 (74 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, green, argillaceous siltstone

• siltstone, argillaceous, medium greenish gray, in 1-18 inch beds

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 9904: 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)
Ostracoda
  -
Ostracoda indet. Latreille 1802 ostracod
abundant
Strophomenata
 Productida - Chonetidae
Chonetes sp. Fischer de Waldheim 1830
present
Rhynchonellata
 Spiriferida - Cyrtinopsidae
"Delthyris sculptilis" = Megakozlowskiella sculptilis
"Delthyris sculptilis" = Megakozlowskiella sculptilis Hall 1843
common
Tentaculita
 Styliolinida - Styliolinidae
Styliolina fissurella Hall 1879
abundant