Where: San Juan County, Utah (37.4° N, 110.3° W: paleocoordinates 8.6° N, 35.1° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Organ Rock Tongue Member (Cutler Formation), Sakmarian to Sakmarian (293.5 - 272.3 Ma)
• Section described in detail on p. 110. Unit 3 is described as "Siltstone, moderate-reddish brown (10R 4/4) flat, medium-bedded; weathers rounded; some bleached zones; cement slightly calcaerous; contains plant material; forms slope" Thickness of this unit is 26ft
• group of beds-level stratigraphic resolution
Environment/lithology: terrestrial; brown, red siltstone
Size class: macrofossils
Collection methods: salvage,
• Collected during the excavation of the Seventh-Day Adventist Monument Valley Mission and Hospital.
•Material in the Museum of Northern Arizona.
Primary reference: S. H. Mamay and W. J. Breed. 1970. Early Permian plants from the Cutler Formation in Monument Valley, Utah. United States Geological Survey Professional Paper 700B:109-117 [H. Sims/S. Ostrowski/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 11160: authorized by Hallie Sims, entered by Summer Ostrowski on 23.07.2001
Creative Commons license: CC BY (attribution)
Taxonomic list
| Supaia | |
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| Protoblechnum | |
Protoblechnum bradyi n. sp.
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| Yakia | |
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? Yakia sp. White 1929 undetermined plant fragment. The chief significance of this speciman lies in its resemblance to some of the specimens described by White (1929) as Yakia heterophylla from the Hermit Shale. The Cutler specimen, on the basis of spacing and attitudes of appendages, is very similar to the specimen of Yakia illustrated by White (1929) on plate 39 fig 5. The ultimate members of the Cutler specimen do not show the lobation shown in White's retouched figures; on the other hand, White's original specimens do not convincingly demonstrate lobate margins on the ultimate remifications, but rather appear to have linear appendages like those of the Cutler specimen. Ths, it is likely that the Cutler specimen is closely allied with White's Yakia and thereby constitutes an additional genetic link between the floras of teh Organ Rock Toungue and Hermit Shale.
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| Cycadopsida | |
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| Peltaspermopsida | |
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