Saratoga Chalk

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]

The Saratoga Chalk is a geologic formation in Arkansas.[1] It preserves fossils dating back to the Cretaceous period, specifically ammonites.[3]

Paleofauna

Ammonites

B. ovatus[4]
B. undatus[4]
D. navarroense[4]
H. pumilis[4]
J. nodosus[4]
  • Lewyites
L. oronensis[4]
N. approximans[4]
N. colubriformis[4]
N. draconis[4]
N. helicinum[4]
N. hyatti[4]
N. pauper[4]
P. arkansanus[4]
  • Pseudokossmaticeras
P. galicianum[4]

See also

References

  1. ^ a b 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. (May 1993). "Ammonites from the Saratoga Chalk (Upper Cretaceous), Arkansas". Journal of Paleontology. 67 (3): 404–434. doi:10.1017/s002233600003688x. ISSN 0022-3360.
  4. ^ a b c d e f g h i j k l m n o p 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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