Gorman Fm., zones d-g (Ordovician of the United States)
Where: Texas (30.3° N, 97.7° W: paleocoordinates 21.7° S, 88.9° W)
• coordinate based on political unit
When: Gorman Formation, Early/Lower Ordovician (485.4 - 470.0 Ma)
• "L. Ord. Zones D-G"
Environment/lithology: peritidal; dolomite
• "dolomitic, sandy in part. peritidal? BA1"
Size class: macrofossils
Primary reference: P. E. Cloud, V. E. Barnes, and W. H. Haas. 1957. Devonian-Mississippian Transition in Central Texas. Geological Society America Bulletin 68(7):807-816 [M. Uhen/J. Ju]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 283: authorized by Jack Sepkoski, entered by Mike Sommers on 20.11.1998
Creative Commons license: CC BY (attribution)
Taxonomic list
• "Cloud and Barnes 1957"
Show authors, comments, and common names
Demospongiae | |
Archaeoscyphia sp. Hinde 1889 demosponge | |
Trilobita | |
Hystricurus sp. Raymond 1913 trilobite | |
Rhynchonellata | |
Gastropoda | |
| |
Ophileta sp. Vanuxem 1842 snail
Lecanospira sp. Butts 1926 snail | |
Plethospira sp. Ulrich and Scofield 1897 snail
Hormotoma sp. Salter 1859 snail | |
Tergomya | |
"Propilina sp." = Proplina
| |
Cephalopoda | |
Burenoceras sp. Ulrich and Foerste 1931 | |
Clitendoceras sp. Ulrich and Foerste 1936
Mcqueenoceras sp. Ulrich and Foerste 1936 | |
Piloceras sp. Salter 1859 |