Spondylus gregalis (Morton, 1833)

Remarks

• Collector:    Ralph Johnson (M.A.P.S. collection)

• Formation:  Monmouth Group, Navesink Formation

• Location:     Monmouth County, New Jersey.

General Info

Synonyms (older names and misidentifications in the literature)

• 1833 Plagiostoma gregalis Morton
• 1886 Spondylus gregalis (Morton); Whitfield
• 1907 Spondylus gregalis (Morton); Weller
• 1958 Spondylus gregalis (Morton); Richards

Stratigraphic Occurrence

• Monmouth Group, Navesink Formation of New Jersey

Age

• Spondylus gregalis Morton occurs in the Maastrichtian of New Jersey (~70–67 mya).

Geographic Occurrence (not an all-inclusive list)

• Burlington County, NJ
• Monmouth County, NJ

Remarks

         For identification and descriptions, see:

• Richards, H. G.  1958.  The Cretaceous Fossils of New Jersey, Part 1.  New Jersey Geological Survey Bulletin 61.