San Rafael River, below Castledale (Jurassic of the United States)
Where: Utah (39.2° N, 110.9° W: paleocoordinates 29.7° N, 50.4° W)
• coordinate estimated from map
When: Jurassic (201.4 - 145.0 Ma)
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Preservation: replaced with calcite
Collection methods: bulk,
Primary reference: W. B. Clark and M. W. Twitchell. 1915. The Mesozoic and Cenozoic Echinodermata of the United States. United States Geological Survey Bulletin 54:1-341 [L. Villier/J. Millet/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 58639: authorized by Loic Villier, entered by Julien Millet on 17.02.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
• Diameter of disk 8 millimeters, length of arm 10 millimeters (not entire), width of arm near disk 1,5 millimeters
Show authors, comments, and common names
| Ophiuroidea | |
Ophioglypha utahensis n. sp.
Ophioglypha utahensis n. sp. Clark and Twitchell 1915 brittle star | |