Where: Brewster County, Texas (30.2° N, 103.3° W: paleocoordinates 20.6° S, 76.8° W)
When: Dicellograptus ornatus graptolite zone, Maravillas Formation, Richmondian (449.6 - 445.5 Ma)
• Overlies Woods Hollow Shale. Amorphognafhus ordovicicus conodont zone.
• bed-level stratigraphic resolution
Environment/lithology: marine; shale
Size class: macrofossils
Preservation: cast
Primary reference: D. M. Goldman, S. M. Bergström, and C. E. Mitchell. 1995. Revision of the Zone 13 graptolite biostratigraphy in the Marathon, Texas, standard succession and its bearing on Upper Ordovician graptolite biogeography. Lethaia 28:115-128 [P. Wagner/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 184418: authorized by Pete Wagner, entered by Pete Wagner on 24.02.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Pterobranchia | |
"Climacograptus tubuliferus" = Styracograptus tubuliferus
"Climacograptus tubuliferus" = Styracograptus tubuliferus Lapworth 1876 climacograptid | |
Orthograptus quadrimucronatus, Orthograptus fastigatus, Rectograptus amplexicaulis, "Orthoretiograptus sp." = Parareteograptus
Orthograptus quadrimucronatus Hall 1865 graptolite
Orthograptus fastigatus Davies 1929 graptolite
Rectograptus amplexicaulis Hall 1847 graptolite
"Orthoretiograptus sp." = Parareteograptus Mu 1974 graptolite | |
Dicellograptus ornatus Elles and Wood 1904 graptolite |