Unit 1 (7 ft. below top), upper shale member, Mahantango Fm., Girtys 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

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 10099: authorized by Arnold Miller, entered by Karen Layou on 15.02.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Relative abundance information: present (1 specimen collected), common (2-10 specimens collected), abundant (more than 10 specimens collected), very abundant (sample is extremely rich in a given species)
Rhynchonellata
 Spiriferida -
Pustulatia pustulosa Hall 1860
abundant
Stenolaemata
 Cystoporida - Sulcoreteporidae
Sulcoretepora cf. incisurata
abundant (columnals)