Unit 2, Montebello Member, Mahantango Fm., Rockville, Perry Co., PA (Devonian of the United States)

Where: Perry County, Pennsylvania (40.3° N, 76.9° W: paleocoordinates 39.3° S, 25.3° W)

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

• group of beds-level stratigraphic resolution

Environment/lithology: shoreface; gray, yellow sandstone

• sandstone, coarse to very coarse grained, yellowish gray, in regular, commonly 1-4 ft. beds, numerous ripple marks

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 9658: authorized by Arnold Miller, entered by Karen Layou on 10.01.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• Relative abundance information: present (one specimen collected), common (2-10 specimens collected), abundant (more than 10 specimens collected), very abundant (sample extremely rich in a given species)
Rhynchonellata
 Spiriferida - Spinocyrtiidae
Spinocyrtia granulosa Conrad 1839
abundant
Bivalvia
 Ostreida - Pterineidae
Cornellites flabella oyster
common