Turritella trilira Conrad, 1860

Remarks

• Collector:    Keith Minor

• Formation:  Taylor Group, Wolfe City Formation

• Location:     Hunt County, Texas

General Info

Synonyms (older names and misidentifications in the literature)

• 1860 Turritella trilira Conrad
• 1940 Turritella trilira Conrad; Stephenson and Monroe
• 1997 Turritella trilira Conrad; Akers and Akers
• This taxonomic classification of this species has not been revised since Conrad’s original designation to our knowledge.

Stratigraphic Occurrence

• Navarro Group, Corsicana Formation of North–Central Texas
• Navarro Group, Nacatoch Formation of North Texas
• Navarro Group, Neylandville Formation of North Texas
• Taylor Group, San Miguel Formation of South–Central Texas
• Taylor Group, Anacacho Formation of South–Central Texas
• Taylor Group, Wolfe City Formation of North–East Texas
• Ripley Formation of Western Alabama

Age

• Turritella trilira Conrad is a relatively long–ranging gastropod. It occurs from about the Baculites mclearni Landes zone to about the Sphenodiscus intermedius Böse Zone (~80–70 mya).

Geographic Occurrence (not an all-inclusive list)

• Barbour County, AL
• Delta County, TX
• Falls County, TX
• Hunt County, TX
• Kaufman County, TX
• Kinney County, TX
• Maverick County, TX
• Medina County, TX
• Navarro County, TX

Remarks

         For identification and descriptions, see:

• Stephenson, L. W. 1941. The Larger Invertebrate Fossils of the Navarro Group. University of Texas Publication 4101.
• Stephenson, L. W.; Monroe, W. H. 1940. The Upper Cretaceous Deposits. Mississippi State Geological Survey Bulletin 40.