SS-38, Simpson Springs Mountains (Ordovician of the United States)
Also known as Marathon Uplift, Woods Hollow Fm., Tremadoc?, Texas
Where: Texas (30.0° N, 103.3° W: paleocoordinates 16.5° S, 92.4° W)
• coordinate based on political unit
When: Upper Member (Woods Hollow Boulders Formation), Gasconadian (485.4 - 477.7 Ma)
• possibly not Tremadoc.
Environment/lithology: marine; green conglomerate
• "ls boulders in dark green sh. outer shelf. BA5"
• Brownish gray mottled with purplish tinge, fine-grained, slightly sandy limestone of fragmental texture, with glauconitic matrix and phenoclasts of pink fine-grained limestone; some calcirudite mixed with fine-grained limestone; weathers purplish and is highly jointed.
Size class: macrofossils
Primary reference: J.L. Wilson. 1954. Late Cambrian and Early Ordovician Trilobites from the Marathon Uplift, Texas. Journal of Paleontology 28(3):249-285 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 78731: authorized by Pete Wagner, entered by Pete Wagner on 15.02.2008
Creative Commons license: CC BY (attribution)
Taxonomic list
• "Wilson 1954"
Show authors, comments, and common names
| Trilobita | |
|
Platycolpus cf. capax Billings 1860 trilobite | |
|
Pseudohystricurus sp. Ross 1951 trilobite | |
|
Asaphida indet. Salter 1864 trilobite | |