†order Ascocerida Kuhn 1949 (mollusk)

Cephalopoda - Ascocerida

Alternative spelling: Ascoceratida

Parent taxon: Cephalopoda according to B. Kröger 2013

See also Frye 1982, Sepkoski 2002 and Teichert et al. 1964

Sister taxa: Actinoceratoidea, Actinocerida, Actinodochmioceras, Akidocheilus, Ammonoidea, Anomalosaepiidae, Ausseites, Avramidiscus, Bactritoidea, Barrandeocerida, Belosaepia, Boletzkida, Botellusoceras, Burronoceras, Coleoidea, Conchorhynchus, Cyrtoceras, Dartoceras, Davidiceras, Desmoceras, Didymoceras, Discosorida, Ellesmerocerida, Endoceratoidea, Endocerida, Endocycloceratidae, Erlangericheilus, Gonatocheilus, Hadrocheilus, Heyuncunoceras, Kailiceras, Kotetishvilia, Lamellaptychus, Leptocheilus, Leurocycloceratinae, Mesoteuthoidea, Michelinoceratinae, Nautiloidea, Nautilus (Solenochilus), Ohioceratidae, Oncocerida, Orthoceratoidea, Orthoceratoidea, Orthodochmioceras, Palaeoteuthis, Plectonocerida, Protactinocerida, Pseudorthocerida, Rhynchoteuthis, Rhyncolites, Robsonoceratidae, Scaptorrhynchus, Sichunoceras, Songkanoceras, Stemtonoceratidae, Tarphycerida, Teratoceroides, Tetrabranchiata, Tillicheilus, Toxancyloceras, Werthenoceras, Yanhecerida, Yannanoceras, Yichangoceras

Subtaxa: Ascoceratidae Hebetoceratidae Linstroemoceras Probillingsitidae

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Ecology: fast-moving nektobenthic carnivore

Distribution:

• Silurian of Sweden (5 collections), the United Kingdom (1), United States (1: Wisconsin)

• Niagaran of United States (1: Indiana)

• Ordovician to Silurian of Canada (3: Québec)

• Ordovician of Canada (24: Manitoba, Northwest Territories, Nunavut, Ontario, Quebec, Québec), Estonia (1), Norway (7), Sweden (3), the United Kingdom (2), United States (43: Colorado, Illinois, Iowa, Wisconsin, Indiana, Indiana, Ohio, Iowa, Iowa, Minnesota, Michigan, Minnesota, New York, Ohio, Tennessee)

• Chazy of United States (3: New York)

Total: 94 collections including 164 occurrences

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