Peilinia quadriplicata (Shumard, 1860)

Remarks

• Collector:    Stephen Crane
• Formation:  Washita Group, Weno Formation
• Location:     Denton County, TX

General Info

Synonyms (older names and misidentifications in the literature)

• 1860 Ostrea quadriplicata Shumard
• 1884 Ostrea quadriplicata Shumard; White
• 1901 Ostrea quadriplicata Shumard; Hill
• 1910 Ostrea quadriplicata Shumard; Böse
• 1920 Ostrea quadriplicata Shumard; Adkins & Winton
• 1925 Ostrea quadriplicata Shumard; Winton
• 1928 Alectryonia quadriplicata (Shumard); Adkins
• 1947 Ostrea (Alectryonia) quadriplicata Shumard; Shimer & Shrock
• 1947 Ostrea (Alectryonia) quadriplicata Stanton
• 1971 "Ostrea" quadriplicata Shumard; Stenzel
• 1977 "Lopha" quadriplicata (Shumard); Kauffman
• 1990 Peilinia quadriplicata (Shumard); Malchus

Stratigraphic Occurrence

• Washita Group, Boracho Formation (both Levinson and San Vincente Members), Trans-Pecos Texas
• Washita Group, Mainstreet Formation, north Texas
• Washita Group, Pawpaw Formation, north Texas
• Washita Group, Weno Limestone, north Texas
• Washita Group, Denton Formation, north Texas
• Washita Group, Fort Worth Formation, north Texas
• Basal Washita Group, Duck Creek Formation, upper Marl Member, north Texas

Age

• Peilinia quadriplicata (Shumard) ranges from about the Mortoniceras equidistans (Cragin) zone (and possibly lower) to the Mariella (Wintonia) brazoensis (Roemer) zone, early Late Albian Stage to very Early Cenomanian Stage (~100–97 mya).

Geographic Occurrence (not an all-inclusive list)

• Culberson County, TX
• El Paso County, TX
• Grayson County, TX
• Hudspeth County, TX
• Lamar County, TX
• Tarrant County, TX

Remarks

         For identification, descriptions, and ranges, see:

• Adkins, W. S.  1927 (1928).  Handbook of Texas Cretaceous Fossils.  University of Texas Bulletin 2838.
• Adkins, W. S.; Winton, W. M.  1920.  Paleontological Correlation of the Fredericksburg and Washita Formations in North Texas.  University of Texas Bulletin 1945, 1–128.