Del Norte (Permian to of the United States)

Where: Brewster County, Texas (30.5° N, 103.5° W: paleocoordinates 0.4° N, 34.0° W)

• coordinate based on political unit

• local area-level geographic resolution

When: Road Canyon Formation, Artinskian to Artinskian (290.1 - 272.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: deltaic; calcareous siltstone and shale

Size class: macrofossils

Preservation: mold/impression, adpression, coalified

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

Primary reference: S. H. Mamay, J. M. Miller, and D. M. Rohr. 1984. Late Leonardian plants from west Texas: the youngest Paleozoic plant megafossils in North America. Science 223:279-281 [H. Sims/S. Ostrowski/H. Sims]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 11144: authorized by Hallie Sims, entered by Summer Ostrowski on 23.07.2001, edited by Jason Cassara

Creative Commons license: CC BY (attribution)

Taxonomic list

• Revised by Mamay, Miller, Rohr, and Stein (1988) (Gigantopterid indet. of Mamay et al., 1984 replaced by Delnortea abbottiae)
 Gigantopteridales -
Delnortea abbottiae Mamay et al. 1986
"gigantopteroid"
Cycadopsida
 Cycadales -
Taeniopteris sp. Brongniart 1828 cycads
 Coniferales -
cf. Samaropsis sp. Göppert 1864
Samaropsis-like ovuloid structures or ovoid bodies, possibly immature polleniferous organs
Equisetopsida
 Pinidae - Pinidae
Dadoxylon sp. Endlicher 1847
Pteropsida
 Filicinae -
cf. Pecopteris sp. Brongniart 1822
Pecopteris-like fern fragments