CB1 Dan River (Triassic of the United States)

Where: Virginia/North Carolina (36.5° N, 80.5° W: paleocoordinates 1.5° N, 18.4° W)

• coordinate estimated from map

• local area-level geographic resolution

When: upper Member (Cow Branch Formation), Carnian (237.0 - 228.0 Ma)

• Cow Branch is surrounded in space and time by fliviatile, mud-flat, and deltaic deposites of the Stoneville and Pine Hall formations.

Environment/lithology: lacustrine; black, gray siliciclastic sediments

• assymetrical sedimentary cycles

Size class: macrofossils

Preservation: adpression

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: P. E. Olsen, C. L. Remington, B. Cornet and K. S. Thomson. 1978. Cyclic change in Late Triassic lacustrine communities. Science 201:729-733 [A. Rees/D. Sunderlin/D. Sunderlin]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 24383: authorized by Allister Rees, entered by Dave Sunderlin on 06.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Cycadeoideopsida
 Bennettitales -
Pterophyllum sp. Brongniart 1828
cf. Ctenophyllum giganteum
Pinopsida
 Pinales - Podocarpaceae
Podozamites sp. Braun 1843
 Pinales - Araucariaceae
Pagiophyllum sp. Heer 1881
cf. Brachyphyllum conites Bock
 Pinales -
Ginkgoopsida
 Caytoniales - Caytoniaceae
Pteridopsida
  -
Dictyophyllum sp. Lindley and Hutton 1834
Calamitaceae
  - Calamitaceae
Lonchopteris
  -