Johns Valley Formation

Johns Valley Formation
Stratigraphic range: Carboniferous: Pennsylvanian
TypeFormation
UnderliesAtoka Formation
OverliesJackfork Sandstone
Lithology
PrimaryShale
OtherSandstone
Location
RegionArkansas and Oklahoma
CountryUnited States
Type section
Named forJohns Valley, Pushmataha County, Oklahoma [1]
Named byEdward Oscar Ulrich, 1927

The Johns Valley Formation is a geologic formation in Arkansas and Oklahoma.[2] It preserves fossils dating back to the Carboniferous period.

Paleofauna

Bryozoans

  • Acanthocladia
A. ouachitensis[3]
  • Fenestella
F. bendensis[3]
F. grandis[3]
F. granularis[3]
F. kosomensis[3]
F. mimica[3]
F. oklahomensis[3]
  • Leioclema
L. pushmatahensis[3]
  • Rhombopora
R. johnsvalleyensis[3]
R. nitidula[3]
  • Sulcoretepora
S. elegans[3]

Cephalopods

  • Bactrites [4]
  • Cravenoceras
C. scotti [4]
  • Cyclocerid [4]
  • Dentoceras
D. belemnitiforme [4]
  • Eumorphoceras
E. plummeri [4]
  • Gastrioceras
G. adaense [4]
G. fittsi [4]
  • Girtyoceras
G. limatum [4]
G. oblatus [4]
G. morrowensis [4]
G. choctawensis [4]
G. granosus [4]
  • Homoceratoides
H. cracens [4]
M. perfilosum [4]
  • Mooreoceras
M. normale [4]
  • Neoglyphioceras
N. cloudi [4]
  • Orthoceracone [4]
  • Paracravenoceras
P. ozarkense [4]
  • Paradimorphoceras [4]
  • Pseudoparalegoceras
P. kesslerense [4]
  • Pseudothoceras
P. knoxense [4]
R. vaughanianum [4]
  • Stenopronorites
S. arkansiensis [4]

See also

References

  1. ^ Ulrich, E.O. (1927). "Fossiliferous boulders in the Ouachita "Caney" shale and the age of the shale containing them". Oklahoma Geological Survey Bulletin. 45: 6, 21–23, 30, 36–37.
  2. ^ "Stratigraphic Summary of the Arkansas River Valley and Ouachita Mountains". Arkansas Geological Survey. Archived from the original on 2018-05-29. Retrieved 2017-12-15.
  3. ^ a b c d e f g h i j k Horowitz, Alan S. (1977). "Late Mississippian and Early Pennsylvanian bryozoan faunas of Arkansas and Oklahoma: a review" (PDF). Oklahoma Geological Survey Guidebook. 18: 101–105. Retrieved 3 February 2018.
  4. ^ a b c d e f g h i j k l m n o p q r s t u v w x y Gordon, Jr., Mackenzie (1964). "Carboniferous Cephalopods of Arkansas". U.S. Geological Survey Professional Paper. 460: 51–53.
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 17 December 2021.


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