Cephalopoda - Goniatitida - Marathonitidae

Alternative combinations: Cardiella electraensis, Marathonites electraensis

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 and Plummer and Scott 1937

Sister taxa: Almites dmitrievi, Almites gracilis, Almites hayasakai, Almites invariabilis, Almites leveni, Almites multisulcatus, Almites pavlovi, Almites pressulus, Almites reverendus, Almites sellardsi, Almites transitorius, Almites ventrosus

Type specimen: Its type locality is Four miles south of Electra, which is in an Artinskian marine siliciclastic in the Valera Shale Formation of Texas

Ecology: fast-moving nektonic carnivore

Average measurements (in mm): shell diameter 16.2

Distribution: found only at Four miles south of Electra

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Specimen images are retrieved through the ePANDDA API.