Johns Valley Formation

The Johns Valley Formation is a geologic formation in Arkansas and Oklahoma. It preserves fossils dating back to the Carboniferous period.

Paleofauna

Bryozoans

• Acanthocladia

A. ouachitensis

• Fenestella

F. bendensis

F. grandis

F. granularis

F. kosomensis

F. mimica

F. oklahomensis

• Leioclema

L. pushmatahensis

• Rhombopora

R. johnsvalleyensis

R. nitidula

• Sulcoretepora

S. elegans

Cephalopods

• Bactrites
• Cravenoceras

C. scotti

• Cyclocerid
• Dentoceras

D. belemnitiforme

• Eumorphoceras

E. plummeri

• Gastrioceras

G. adaense

G. fittsi

• Girtyoceras

G. limatum

• Glaphyrites

G. oblatus

G. morrowensis

• Goniatites

G. choctawensis

G. granosus

• Homoceratoides

H. cracens

• Mariceras

• Metacoceras
• Mitorthoceras

M. perfilosum

• Mooreoceras

M. normale

• Neoglyphioceras

N. cloudi

• Orthoceracone
• Paracravenoceras

P. ozarkense

• Paradimorphoceras

• Pseudoparalegoceras

P. kesslerense

• Pseudothoceras

P. knoxense

• Rayonnoceras

R. vaughanianum

• Stenopronorites

S. arkansiensis

See also

• List of fossiliferous stratigraphic units in Arkansas
• List of fossiliferous stratigraphic units in Oklahoma
• Paleontology in Arkansas
• Paleontology in Oklahoma

References