†family Baltoceratidae Kobayashi 1935 (mollusk)

Cephalopoda - Orthocerida - Baltoceratidae

Parent taxon: Orthocerida according to B. Kröger and B. Lefebvre 2012

See also Evans 2005, Evans 2011, Flower 1964, Hook and Flower 1977, Kröger et al. 2007, Kröger and Evans 2011, Sweet 1958, Teichert et al. 1964 and Unklesbay and Young 1956

Sister taxa: Acrosphaerorthoceras, Aethiosolen, Arionoceratidae, Arterioceras, Badouceras, 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, Mongoceras, 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, Sphaerorthoceratidae, Sphaerortoceratidae, Standardoceras, Subspyroceras, Tambegiroceras, Tartaroceras, Tienoceras, Tretoceras, Tripteroceratidae, Trispectes, Tunguskoceras, Vericeras, Zhuralevia, Greenlandoceratidae, Allumettoceratidae, Michelinoceratidae, Striatoceratidae, Choanoceratidae, Cycloceratidae, Eskimoceratidae, Clinoceratidae, Engorthoceratidae

Subtaxa: Amsleroceras Annbactroceras Bactroceras Castelloceras Cochlioceras Cyrtobaltoceras Endorioceras Eosomichelinoceras Hedstroemoceras Metabaltoceras Microbaltoceras Rhabdiferoceras Semiannuloceras Sinocochleoceras Veneficoceras

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Type: Cochlioceras

Ecology: nektonic carnivore

Distribution:

• Ordovician of Argentina (5 collections), Australia (4), Bolivia (1), China (20), the Czech Republic (2), Estonia (2), France (11), Germany (1), Indonesia (1), Iran (1), Morocco (1), Norway (2), Poland (2), Sweden (8), the United Kingdom (17), United States (6: Nevada, New Mexico, Texas)

• Llandeilo of China (1)

• Chazy of United States (2: Vermont)

• Whiterockian of United States (1: Nevada)

• Dawan of China (6)

• Cassinian of United States (6: Nevada, New York, Texas, Vermont)

• Arenig of China (3)

• Arenigian of Svalbard and Jan Mayen (1)

Total: 104 collections including 109 occurrences

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