Unit 11, Montebello Member, Mahantango Fm., Marysville, 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: marine; sandstone

• sandstone, medium grained, medium gray, in 2-18 inch regular to slighly undulose 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 9674: authorized by Arnold Miller, entered by Karen Layou on 10.01.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

• sandstone, medium grained, medium gray, in 2-18 inch regular to slighly undulose beds
unclassified
  -
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
present
Strophomenata
 Strophomenida - Chonetidae
Devonochonetes coronatus Hall 1857
common
 Strophomenida - Leptostrophiidae
Protoleptostrophia perplana Conrad 1839
present
Rhynchonellata
 Spiriferida - Spiriferidae
Spirifer sp. Sowerby 1818
prseent
 Spiriferida - Spinocyrtiidae
  - Tropidoleptidae
Tropidoleptus carinatus Conrad 1839
present
 Spiriferinida - Cyrtinidae
Cyrtina hamiltonensis Hall 1857
present
 Rhynchonellida - Camarotoechiidae
Camarotoechia sp. Hall and Clarke 1893
common
 Terebratulida - Stringocephalidae
Bryozoa
  -
Bryozoa indet. Ehrenberg 1831
present
Stenolaemata
 Cystoporida - Sulcoreteporidae
 Cryptostomata - Acanthocladiidae
Polypora sp.
present
 Cryptostomata - Fenestellidae
Bivalvia
 Pectinida - Pterinopectinidae
Pterinopecten princeps scallop
present
 Ostreida - Pterineidae
Cornellites flabella oyster
common
Actinopteria decussata oyster
present
Trilobita
 Phacopida - Homalonotidae
Trimerus dekayi trilobite
present
Anthozoa
 Rugosa -
Rugosa indet. horn coral
common
 Favositida - Micheliniidae
Pleurodictyum styloporum tabulate coral
common