Saratoga Chalk

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Saratoga Chalk
Stratigraphic range: Cretaceous
Plate LI Fossil Shells Gryphaea Vesicularis.jpg
Fossils from the Saratoga Chalk
Type Formation
Underlies Nacatoch Formation
Overlies Marlbrook Formation
Thickness20 to 70 feet [1]
Location
Region Arkansas
Country United States
Type section
Named by John 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]

Contents

Paleofauna

Ammonites

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

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.


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