Saratoga Chalk

The Saratoga Chalk is a geologic formation in Arkansas.[1] It preserves fossils dating back to the Cretaceous period.

Saratoga Chalk
Stratigraphic range: Cretaceous
Fossils from the Saratoga Chalk
TypeFormation
UnderliesNacatoch Formation
OverliesMarlbrook Formation
Thickness20 to 70 feet[1]
Location
RegionArkansas
CountryUnited States
Type section
Named byJohn Casper Branner[2]

Paleofauna

Ammonites

B. ovatus[3]
B. undatus[3]
D. navarroense[3]
H. pumilis[3]
J. nodosus[3]
  • Lewyites
L. oronensis[3]
N. approximans[3]
N. colubriformis[3]
N. draconis[3]
N. helicinum[3]
N. hyatti[3]
N. pauper[3]
P. arkansanus[3]
  • Pseudokossmaticeras
P. galicianum[3]

See also

References

  1. McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 30.
  2. Branner, J.C. (1898). "The cement-materials of southwest Arkansas". Transactions of the American Institute of Mining Engineers. 27: 52–59.
  3. Kennedy, W. J.; Cobban, W. A. (1993). "Ammonites from the Saratoga Chalk (Upper Cretaceous), Arkansas". Journal of Paleontology. 67 (3): 404–434.


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