Cephalopoda - Ammonoida - Marathonitidae
Alternative combinations: Marathonites sellardsi, Peritrochia sellardsi
Full reference: F. B. Plummer and G. Scott. 1937. Upper Paleozoic ammonites in Texas. The University of Texas Bulletin 3701:1-516
Belongs to Almites according to T. B. Leonova 2002
See also Bogoslovskaya 1990, Miller and Furnish 1940, Miller and Youngquist 1947 and Plummer and Scott 1937
Sister taxa: Almites dmitrievi, Almites electraensis, Almites gracilis, Almites hayasakai, Almites invariabilis, Almites leveni, Almites multisulcatus, Almites pavlovi, Almites pressulus, Almites reverendus, Almites transitorius, Almites ventrosus
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 13.6
Distribution:
• Permian of United States (18: Texas collections)
• Carboniferous of United States (1: Texas)
Total: 19 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.