#2 of Trout Valley Formation (Kasper et al. 1988) (Devonian to of the United States)

Where: Baxter State Park County, Maine (46.1° N, 68.6° W: paleocoordinates 37.8° S, 15.8° W)

• outcrop-level geographic resolution

When: Trout Valley Formation, Late/Upper Emsian to Late/Upper Emsian (402.5 - 387.7 Ma)

• overlies the Traveler Rhyolite which was dated by Bottino et al (1966) as 360+/-10 Ma. Formation is about 1500 feet thick.

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithified, gray shale

• Fine-grained, medium to dark gray, highly indurated shale. Irregular bedding plane (Andrews et al. 1977)

Preservation: adpression, coalified, original carbon, original sporopollenin

Collection methods: quarrying, chemical, mechanical,

Primary reference: A. Kasper and H. Andrews. 1972. Pertica, a new genus of Devonian plants from northern Maine. American Journal of Botany 59:892-911 [P. Gensel/M. Kotyk]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 10601: authorized by Pat Gensel, entered by Michele Kotyk on 29.05.2001

Creative Commons license: CC BY (attribution)

Taxonomic list

 Radiatopses -
Pertica quadrifaria n. gen. n. sp.
Pertica quadrifaria n. gen. n. sp. Kasper and Andrews 1972