Choristothyris plicata (Say, 1820)

Remarks

• Collector:    Tony Fabian
• Formation:  Monmouth Group, Navesink Formation
• Location:     Monmouth County, New Jersey

General Info

Synonyms (older names and misidentifications in the literature)

• "lamp shell"
• 1820 Terebratula plicata Say
• 1834 Terebratula sayi Morton
• 1886 Terebratula plicata Say; Whitfield
• 1907 Terebratula plicata Say; Weller
• 1942 Terebratula plicata Say; Cooper
• 1942 Choristothyris plicata (Say); Cooper
• 1958 Choristothyris plicata (Say); Richards
• 1992 Choristothyris plicata Say; Case

Stratigraphic Occurrence

• Monmouth Group, Lower Navesink Formation of New Jersey
• Monmouth Group, Severn Formation of Maryland

Age

• Choristothyris plicata (Say) occurs in early Maastrichtian rocks of the Atlantic Coastal Plains.

Geographic Occurrence (not an all-inclusive list)

• Burlington County, NJ
• Monmouth County, NJ
• Wicomico County, MD (core sample)

Remarks

         For identification and descriptions, see:

• Case, G. R. 1992. A Pictorial Guide to Fossils. Malabar: Krieger Publishing, p. 52.
• Richards, H. G.  1958.  The Cretaceous Fossils of New Jersey, Part 1.  New Jersey Geological Survey Bulletin 61.