Where: Fremont County, Colorado (38.4° N, 105.2° W: paleocoordinates 1.2° S, 37.1° W)
• coordinate based on nearby landmark
When: Fountain Formation, Morrowan to Morrowan (323.2 - 312.8 Ma)
Environment/lithology: fluvial; red, white, yellow siliciclastic sediments and bioturbated, paleosol/pedogenic, red mudstone
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•Fountain Formation is generally regarded as a fluvial, orogenic basin
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•Sandstones are described as arkosic.
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•At the second locality...red mudstone that overlies the lowermost arkosic sandstone of the Fountain Formation. This mudstone is believed to represent a paleosol with stigmarian axes preserved in situ.
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•Third locality (West of Garden Park) includes a basal fine-grained red sandstone
Size class: macrofossils
Preservation: cast, mold/impression, permineralized, replaced with hematite
Reposited in the UMMP
Primary reference: J. R. Jennings. 1980. Fossil plants from the Fountain Formation (Pennsylvanian) of Colorado. Journal of Paleontology 54(1):149-158 [H. Sims/S. Ostrowski/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 11205: authorized by Hallie Sims, entered by Summer Ostrowski on 23.07.2001, edited by Alistair McGowan
Creative Commons license: CC BY (attribution)
Taxonomic list
Stigmaria ficoides | |
Stigmaria ficoides Sternberg 1822 | |
Lepidostrobus sp. Brongniart 1828 | |
Lepidostrobophyllum sp. Hirmer 1927
Lepidophylloides sp. Snigirevskaya 1958
Lepidophloios laricinus Sternberg 1820 | |
Sigillariaceae | |
Sigillaria sp. Brongniart 1822
Syringodendron sp. Sternberg 1820 | |
Polypodiopsida | |
Neuropteridae | |
Cyclopteris sp. Brongniart 1828 | |
Neuropteris gigantea | |
"Neuropteris cf. gigantea" = Paripteris gigantea
"Neuropteris cf. gigantea" = Paripteris gigantea Sternberg 1825 mesophyll visible on partly petrified specimens
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