DeLong Quarry (Devonian of the United States)

Also known as Port Allegany

Where: McKean County, Pennsylvania (41.8° N, 78.3° W: paleocoordinates 30.4° S, 26.8° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: Pocono Formation (Conewango Group), Famennian (372.2 - 358.9 Ma)

• Arnold (1932, p. 52): "The lower ten or twelve feet of rock exposed in the quarry consists of hard massive sandstone cracked in various directions. Above this lies a bed, two feet or less thick, consisting of yellow mud and sand."

Environment/lithology: sandstone

Size class: macrofossils

Preservation: adpression, original carbon

Collection methods: quarrying, mechanical,

Primary reference: C. A. Arnold. 1932. Fossil Plants from the Pocono (Oswayo) Sandstone of Pennsylvania. Michigan Academy of Science Papers 17:51-57 [W. Stein/J. Kao/J. Kao]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 14257: authorized by Bill Stein, entered by Jenny Kao on 29.05.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhacopteris sp. Schimper 1869
 Archaeopteridales - Archaeopteridaceae
 Cordaitales -
Callixylon sp. Zalessky 1911
  - Sigillariaceae
Sigillaria sp. Brongniart 1822