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
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Cycadopsida | |
Taeniopteris sp. Brongniart 1828 cycads | |
cf. Samaropsis sp. Göppert 1864 Samaropsis-like ovuloid structures or ovoid bodies, possibly immature polleniferous organs
| |
Equisetopsida | |
Dadoxylon sp. Endlicher 1847 | |
Pteropsida | |
|