Serratolamna serrata (Agassiz, 1843)

Remarks

• Lee Duchouquette found these teeth from the Navarro Group, Kemp Formation, Hunt County, Texas.

General Info

Synonyms (older names in the literature)

• Another member of the Mackerel Shark family
• 1843 Lamna serrata Agassiz
• 1993 Serratolamna serrata (Agassiz); Welton and Farish

Stratigraphic Occurrence

• Monmouth Group, Severn Formation of Maryland
• Midway Group, Littig Formation (Paleocene) of Texas (probably reworked)
• Navarro Group, Kemp Formation of North Texas
• Navarro Group, Escondido Formation of South Texas
• No reports, but it probably occurs in the basal Navarro Group, Neylandville Formation of North Texas
• Upper Taylor Group, Upper Taylor Marl (Bergstrom/Marlbrook Formation) of North and Central Texas

Age

• Serratolamna serrata (Agassiz) ranges from the late Campanian Stage to the late Maastrichtian Stage (~71-65 mya).

Geographic Occurrence (not an all-inclusive list)

• Ellis County, TX
• Hunt County, TX
• Maryland
• Medina County, TX
• Travis County, TX

Remarks

       For identification and descriptions, see:

• Welton, B. J; Farish, R. F.  1993.  The  Collector’s  Guide  to  Fossil  Sharks  and  Rays  from  the  Cretaceous  of  Texas.  Lewisville:  Before Time.