Saratoga Chalk

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

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

Paleofauna

Ammonites

B. ovatus
B. undatus
D. navarroense
H. pumilis
J. nodosus
L. oronensis
N. approximans
N. colubriformis
N. draconis
N. helicinum
N. hyatti
N. pauper
P. arkansanus
P. galicianum

See also

References

  1. 1 2 McFarland, John David (2004) [1998]. "Stratigraphic summary of Arkansas" (PDF). Arkansas Geological Commission Information Circular. 36: 30. Archived from the original (PDF) on 2016-12-21. Retrieved 2018-01-12.
  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. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Kennedy, W. J.; Cobban, W. A. (1993). "Ammonites from the Saratoga Chalk (Upper Cretaceous), Arkansas". Journal of Paleontology. 67 (3): 404–434.