Scapanorhynchus raphiodon (Agassiz, 1843)

   Labial View             Lingual View               Lateral View

Remarks

• Brent Buemi found this Goblin Shark tooth from the Eagle Ford Group, Kamp Ranch Member of the Arcadia Park Shale, Dallas County, Texas.

General Info

Synonyms (older names and misidentifications in the literature)

• Goblin Shark
• 1843 Lamna raphiodon Agassiz
• 1845 Odontaspis raphiodon (Agassiz); Reuss
• 1845 Lamna plicatella Reuss
• 1850 Enchodus halocyon Agassiz; Geinitz
• 1850 Odontaspis raphiodon (Agassiz); Dixon
• 1854 Lamna raphiodon Agassiz; Kiprijanov
• 1872 Odontaspis raphiodon (Agassiz); Sauvage
• 1873 Enchodus serratus Egerton; Stoliczka
• 1875 Lamna raphiodon Agassiz; Geinitz
• 1878 Lamna raphiodon Agassiz; Fritsch
• 1900 Scapanorhynchus raphiodon (Agassiz); Williston
• 1903 Lamna raphiodon Agassiz; Dacque
• 1906 Scapanorhynchus raphiodon (Agassiz); Leriche
• 1908 Scapanorhynchus raphiodon (Agassiz); Priem
• 1911 Scapanorhynchus raphiodon (Agassiz); Woodward
• 1914 Scapanorhynchus raphiodon (Agassiz); Priem
• 1918 Scapanorhynchus raphiodon (Agassiz); Chapman
• 1923 Scapanorhynchus raphiodon (Agassiz); Beaufort
• 1928 Lamna texana Roemer; Adkins
• 1929 Scapanorhynchus raphiodon (Agassiz); Leriche
• 1930 Scapanorhynchus raphiodon (Agassiz); Stromer and Weiler
• 1930 Scapanorhynchus raphiodon (Agassiz); Obata and Yabe
• 1935 Scapanorhynchus raphiodon (Agassiz); Dalinkevicius
• 1935 Scapanorhynchus raphiodon (Agassiz); Choubert
• 1935 Scapanorhynchus raphiodon (Agassiz); Leriche
• 1943 Scapanorhynchus raphiodon (Agassiz); Dartevelle and Casier
• 1943 Scapanorhynchus raphiodon (Agassiz); Arambourg and Joleaud
• 1952 Scapanorhynchus raphiodon (Agassiz); Arambourg
• 1964 Scapanorhynchus raphiodon (Agassiz); Gluckman
• 1970 Scapanorhynchus raphiodon (Agassiz); Taverne
• 1970 Scapanorhynchus raphiodon (Agassiz); Applegate
• 1970 Lamna appendiculata Agassiz; Applegate
• 1975 Scapanorhynchus raphiodon (Agassiz); Herman
• 1981 Scapanorhynchus sp. Witzke
• 1985 Scapanorhynchus raphiodon (Agassiz); Wolberg
• 1985 Anomotodon sp. Wolberg
• 1985 Scapanorhynchus raphiodon (Agassiz); Wolberg
• 1985 Odontaspis macrota Wolberg
• 1988 Scapanorhynchus raphiodon (Agassiz); Lucas et al.
• 1989 Scapanorhynchus raphiodon (Agassiz); Williamson et al.
• 1989 Scapanorhynchus raphiodon (Agassiz); Finsley
• 1990 Scapanorhynchus raphiodon (Agassiz); Williamson and Lucas
• 1993 Scapanorhynchus raphiodon (Agassiz); Williamson et al.
• 1993 Scapanorhynchus raphiodon (Agassiz); Welton and Farish

Stratigraphic Occurrence

• Lower Austin Group, Basal Austin Formation of North Texas
• Upper Eagle Ford Group, Arcadia Park Formation, Kamp Ranch Member of North Texas
• Toreva Formation, Lower Sandstone Member of Northeastern Arizona
• Mancos Formation, Middle Shale Member of Northeastern Arizona and Northwestern New Mexico
• Mancos Formation, Lower Shale Member of Northeastern Arizona and Northwestern New Mexico
• Dakota Formation, Upper Sandstone Member of Northeastern Arizona

Age

• Scapanorhynchus raphiodon (Agassiz) ranges from about the Sciponoceras gracile (Shumard) zone to roughly the Peroniceras (Peroniceras) westphalicum (Schlüter) zone, from middle Turonian to middle Coniacian time (~94–88 mya).

Geographic Occurrence (not an all-inclusive list)

• Coconino County, AZ
• Dallas County, TX
• McKinley County, NM
• Navajo County, AZ

Remarks

         For identification and descriptions, see:

• Williamson, T. E.; Kirkland, J. I.; Lucas, S. G.  1993.  Selachians from the Greenhorn Cyclothem ("Middle" Cretaceous:  Cenomanian-Turonian), Black Mesa, Arizona, and the Paleogeographic Distribution of Late Cretaceous Selachians.  Journal  of  Paleontology  67 (3), 447-474.