Eutrephoceras stephensoni Dickerson 1914 (nautiloid)

Cephalopoda - Nautilida - Nautilidae

Alternative combination: Nautilus stephensoni

Full reference: R. E. Dickerson. 1914. Fauna of the Martinez Eocene of California. Bulletin of the Department of Geology, University of California 6:61-180

Belongs to Eutrephoceras according to A. K. Miller and H. R. Downs 1950

See also Miller 1947 and Vokes 1937

Sister taxa: Eutrephoceras (Simplicioceras), Eutrephoceras ahltenense, Eutrephoceras alcesense, Eutrephoceras allani, Eutrephoceras allionii, Eutrephoceras altifrons, Eutrephoceras angolaense, Eutrephoceras antarcticum, Eutrephoceras astierianum, Eutrephoceras azraqensis, Eutrephoceras balcombensis, Eutrephoceras bellerophon, Eutrephoceras berryi, Eutrephoceras blanki, Eutrephoceras boissieri, Eutrephoceras bouchardianum, Eutrephoceras burundukhajense, Eutrephoceras campbelli, Eutrephoceras carolinense, Eutrephoceras carolinensis, Eutrephoceras charpentieri, Eutrephoceras claramontanum, Eutrephoceras clementinum, Eutrephoceras dartevellei, Eutrephoceras darupense, Eutrephoceras decorum, Eutrephoceras dekayi, Eutrephoceras depressum, Eutrephoceras desertorum, Eutrephoceras donbassicum, Eutrephoceras dorbignyanum, Eutrephoceras douvillei, Eutrephoceras dubaleni, Eutrephoceras expansum, Eutrephoceras eyerdami, Eutrephoceras faxoense, Eutrephoceras flammeum, Eutrephoceras geelongensis, Eutrephoceras globosum, Eutrephoceras hacobjani, Eutrephoceras hallidayi, Eutrephoceras hannai, Eutrephoceras indicum, Eutrephoceras insigne, Eutrephoceras irritilasi, Eutrephoceras izumoensis, Eutrephoceras japonicus, Eutrephoceras johnsoni, Eutrephoceras jonesi, Eutrephoceras justum, Eutrephoceras kummeli, Eutrephoceras laverdei, Eutrephoceras lentiforme, Eutrephoceras leonei, Eutrephoceras marksi, Eutrephoceras merteni, Eutrephoceras montanaense, Eutrephoceras montanensis, Eutrephoceras montmollini, Eutrephoceras moskvini, Eutrephoceras municeps, Eutrephoceras nodai, Eutrephoceras oregonense, Eutrephoceras parisiense, Eutrephoceras perlatus, Eutrephoceras planoventer, Eutrephoceras quadrilineatum, Eutrephoceras reesidei, Eutrephoceras rotundum, Eutrephoceras sloani, Eutrephoceras soyaense, Eutrephoceras spengleri, Eutrephoceras sphaericum, Eutrephoceras subfleuriausianum, Eutrephoceras sublaevigatum, Eutrephoceras subrotundum, Eutrephoceras tawaense, Eutrephoceras traubi, Eutrephoceras tumescens, Eutrephoceras umbilicare, Eutrephoceras urbanum, Eutrephoceras uzense, Eutrephoceras vastum, Eutrephoceras victorianum, Eutrephoceras waageni

Type specimen: Its type locality is UCMP 243, Muir Station, which is in a Thanetian coastal siliciclastic in the Martinez Formation of California

Ecology: nektonic carnivore

Average measurements (in mm): shell diameter 28.5

Distribution:

• Paleocene of United States (4: California collections)

Total: 4 collections each including a single occurrence

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Specimen images are retrieved through the ePANDDA API.


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