†family Sphaerorthoceratidae Ristedt 1968 (mollusk)

Cephalopoda - Orthocerida - Sphaerorthoceratidae

Parent taxon: Orthocerida according to B. Kröger 2008

Sister taxa: Acrosphaerorthoceras, Aethiosolen, Arionoceratidae, Arterioceras, Badouceras, Baltoceratidae, Bogoslovskya, Bohemites, Cedarvilleoceras, Chicagooceras, Coralloceras, Cornuella, Cryptocycloceras, Cycloceras, Dictyoceras, Donacoceras, Esopoceras, Folioceras, Garryoceras, Geisonoceratidae, Geisonocerina, Greenlandoceras, Haruspex, Heloceras, Jangziceras, Joldagiroceras, Kionoceratidae, Leurocycloceras, Lituitina, Loxoceras, Mericoceras, Molossus, Murchisoniceras, Naivs, Narthecoceratidae, Nebroceras, Neorthoceras, Neosichuanoceras, Ophidioceras, Orthoceratidae, Orthoceratina, Palaeocycloceras, Paradnatoceras, Paramooreoceras, Plicatoceras, Podoliceras, Proteoceratidae, Protobactrites, Pseudokionoceras, Pseudorthocerataceae, Pseudotemperoceras, Pythonoceras, Rhabdites, Rhipsites, Richmondoceras, Sannionites, Siberioceras, Sichuanaceras, Sichuanoceratidae, Sphaerortoceratidae, Standardoceras, Subspyroceras, Tambegiroceras, Tartaroceras, Tienoceras, Tretoceras, Tripteroceratidae, Trispectes, Tunguskoceras, Vericeras, Zhuralevia, Greenlandoceratidae, Allumettoceratidae, Michelinoceratidae, Striatoceratidae, Choanoceratidae, Cycloceratidae, Eskimoceratidae, Clinoceratidae, Engorthoceratidae

Subtaxa: Akrosphaeorthoceras Akrosphaerorthoceras Hemicosmorthoceras Parasphaerorthoceras Plagiostomoceras Sphaerorthoceras

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Type: Sphaerorthoceras

Ecology: nektonic carnivore

Distribution:

• Devonian of Australia (1 collection), Germany (1), Italy (2), Kyrgyzstan (1), Morocco (8)

• Silurian to Devonian of Italy (2)

• Silurian of Austria (4), Italy (13), Morocco (2), United States (2: Wisconsin)

Total: 36 collections including 106 occurrences

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