Saratoga Chalk Explained

Saratoga Chalk
Type:	Formation
Age:	Cretaceous
Namedby:	John Casper Branner^[1]
Region:	Arkansas
Country:	United States
Underlies:	Nacatoch Formation
Overlies:	Marlbrook Formation
Thickness:	20 to 70 feet^[2]

The Saratoga Chalk is a geologic formation in Arkansas.^[2] It preserves fossils dating back to the Cretaceous period, specifically ammonites.^[3]

Paleofauna

Ammonites

• Baculites

B. ovatus^[4]

B. undatus^[4]

• Didymoceras

D. navarroense^[4]

• Gaudryceras^[4]
• Hoploscaphites

H. pumilis^[4]

• Jeletzkytes

J. nodosus^[4]

• Lewyites

L. oronensis^[4]

• Nostoceras

N. approximans^[4]

N. colubriformis^[4]

N. draconis^[4]

N. helicinum^[4]

N. hyatti^[4]

N. pauper^[4]

• Pachydiscus

P. arkansanus^[4]

• Pseudokossmaticeras

P. galicianum^[4]

• Solenoceras^[4]

See also

• List of fossiliferous stratigraphic units in Arkansas
• Paleontology in Arkansas

References

• Web site: Fossilworks: Gateway to the Paleobiology Database. ((Various Contributors to the Paleobiology Database)). 17 December 2021.

Notes and References

1. Branner. J.C.. The cement-materials of southwest Arkansas. Transactions of the American Institute of Mining Engineers. 1898. 27. 52–59.
2. McFarland. John David. Stratigraphic summary of Arkansas. Arkansas Geological Commission Information Circular. 2004. 1998. 36. 30.
3. Kennedy. W. J.. Cobban. W. A.. May 1993. Ammonites from the Saratoga Chalk (Upper Cretaceous), Arkansas. Journal of Paleontology. 67. 3. 404–434. 10.1017/s002233600003688x. 0022-3360.
4. Kennedy. W. J.. Cobban. W. A.. Ammonites from the Saratoga Chalk (Upper Cretaceous), Arkansas. Journal of Paleontology. 1993. 67. 3. 404–434.