TXV-103 (FS), near Jacksboro TX (Carboniferous of the United States)

Also known as AMNH locality 5557

Where: Jack County, Texas (33.1° N, 98.2° W: paleocoordinates 5.8° S, 32.5° W)

• coordinate estimated from map

When: Finis Shale Member (Graham Formation), Virgilian (303.7 - 298.9 Ma)

Environment/lithology: marine; shale

• 2.0-2.85 Covered with abundant limestone float.

•0.0-2.0 Shale weathers sandy, powdery, many calcareous concretions

Size classes: macrofossils, mesofossils

Collection methods: surface (float), surface (in situ)

Primary reference: W. Boston. 1988. The surficial geology, paleontology, and paleoecology of the Finis Shale (Pennsylvanian, Lower Virgilian) in Jack County, Texas. 293 [B. Seuss/B. Seuss/B. Seuss]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 218027: authorized by Barbara Seuss, entered by Barbara Seuss on 18.02.2021

Creative Commons license: CC BY (attribution)

Taxonomic list

• 0.0-2.0 brachiopods, gastropods, coiled nautiloids, straight nautiloids, and ammonoids.
unclassified
  -
Anthozoa
 Stauriida - Cyathopsidae
Caninia torguium horn coral
19 specimens
Gastropoda
 Murchisoniina - Soleniscidae
"Ianthinopsis brevis" = Strobeus brevis
"Ianthinopsis brevis" = Strobeus brevis White 1881 snail
1 specimen
 Murchisoniina - Gosseletinidae
Glabrocingulum gravillense snail
1 specimen
Cephalopoda
 Orthocerida - Brachycycloceratidae
Brachycycloceras normale Miller et al. 1955
1 specimen
 Goniatitida - Glaphyritidae
Glaphyrites modestus Böse 1919 ammonite
1 specimen
 Pseudorthocerida - Pseudorthoceratidae
Pseudorthoceras knoxense McChesney 1859
2 specimens
 Nautilida - Tainoceratidae
Metacoceras cornutum Girty 1911 nautiloid
1 specimen
Strophomenata
 Orthotetida - Derbyiidae
 Productida - Echinoconchidae
"Juresania nebrascensis" = Parajuresania nebrascensis
"Juresania nebrascensis" = Parajuresania nebrascensis Owen 1852
4 specimens
 Productida - Productellidae
"Retaria lasallensis" = Kutorginella lasallensis Worthen 1873
5 specimens
Rhynchonellata
 Spiriferida - Ambocoeliidae
Crurithyris planoconvexa Shumard 1855
1 specimen