Ludlowville Formation

Ludlowville Formation
Ludlowville Formation
Stratigraphic range: Devonian
	Monodechenella macrocephala, Ludlowville Formation, Livingstone Country, New York - Houston Museum of Natural Science
Type	Formation
Unit of	Hamilton Group
Sub-units	Owasco Shale; Jaycox Shale; Spafford Shale; Wanakah Shale; Ledyard Shale; Otisco Shale; Centerfield Limestone;
Underlies	Moscow Formation
Overlies	Skaneateles Formation
Lithology
Primary	Shale
Other	Limestone, Mudstone, Claystone
Location
Region	New York; Pennsylvania; Ohio
Country	United States
	Geographic extent of Ludlowville Formation

The Ludlowville Formation is a geologic formation in New York, Ohio and Pennsylvania. It dates back to the Devonian period.^[1]

Subunits[edit]

Owasco Shale[edit]

Jaycox Shale[edit]

Spafford Shale[edit]

Wanakah Shale[edit]

Centerfield Limestone[edit]

The Centerfield Limestone is a geologic formation in New York, and Pennsylvania. It dates back to the Devonian period. It is the lowest member of the Ludlowville Formation and it overlies the Skaneateles Formation.^[2]^[3] The Peppermill Gulf bed is included within the Centerfield Lime. The unit was named by Smith (1930)

Fossils[edit]

This Limestone unit contains fossils of crinoids, rugosa, bivalvia, trilobites and brachiopods.

References[edit]

^ BRETT, CARLTON E (1986). "SEDIMENTARY CYCLES AND LATERAL FACIES GRADIENTS ACROSS A MIDDLE DEVONIAN SHELF-TO-BASIN RAMP LUDLOWVILLE FORMATION, CAYUGA BASIN" (PDF). NYSGA Online.
^ Goldman, Daniel; Mitchell, Charles E. (1990). "Morphology, systematics, and evolution of Middle Devonian Ambocoeliidae (Brachiopoda), western New York". Journal of Paleontology. 64 (1): 79–99. doi:10.1017/s0022336000042256. ISSN 0022-3360.
^ Cooper, G. A. (1934-01-01). "Stratigraphy of the Hamilton Group, eastern New York". American Journal of Science. s5-27 (157): 1–12. doi:10.2475/ajs.s5-27.157.1. ISSN 0002-9599.

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[1] BRETT, CARLTON E (1986). "SEDIMENTARY CYCLES AND LATERAL FACIES GRADIENTS ACROSS A MIDDLE DEVONIAN SHELF-TO-BASIN RAMP LUDLOWVILLE FORMATION, CAYUGA BASIN" (PDF). NYSGA Online.

[2] Goldman, Daniel; Mitchell, Charles E. (1990). "Morphology, systematics, and evolution of Middle Devonian Ambocoeliidae (Brachiopoda), western New York". Journal of Paleontology. 64 (1): 79–99. doi:10.1017/s0022336000042256. ISSN 0022-3360.

[3] Cooper, G. A. (1934-01-01). "Stratigraphy of the Hamilton Group, eastern New York". American Journal of Science. s5-27 (157): 1–12. doi:10.2475/ajs.s5-27.157.1. ISSN 0002-9599.

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