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Kazushige (2012). "Taxonomy,
morphology and
phylogeny of Late
Cretaceous spirulid coleoids (Cephalopoda) from
Greenland and Canada". Palaeontology. 55 (2):...
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Ellesmerocerida Orthocones: Endocerida, Orthocerida,
Actinocerida Brevicones: Ascocerida,
Oncocerida Earliest coiled cephalopods:
Tarphycerida Spirulid?: Shimanskya...
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Ellesmerocerida Orthocones: Endocerida, Orthocerida,
Actinocerida Brevicones: Ascocerida,
Oncocerida Earliest coiled cephalopods:
Tarphycerida Spirulid?: Shimanskya...
-
Ellesmerocerida Orthocones: Endocerida, Orthocerida,
Actinocerida Brevicones: Ascocerida,
Oncocerida Earliest coiled cephalopods:
Tarphycerida Spirulid?: Shimanskya...
-
Ellesmerocerida Orthocones: Endocerida, Orthocerida,
Actinocerida Brevicones: Ascocerida,
Oncocerida Earliest coiled cephalopods:
Tarphycerida Spirulid?: Shimanskya...
-
Ellesmerocerida Orthocones: Endocerida, Orthocerida,
Actinocerida Brevicones: Ascocerida,
Oncocerida Earliest coiled cephalopods:
Tarphycerida Spirulid?: Shimanskya...
-
Ellesmerocerida Orthocones: Endocerida, Orthocerida,
Actinocerida Brevicones: Ascocerida,
Oncocerida Earliest coiled cephalopods:
Tarphycerida Spirulid?: Shimanskya...
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Phragmoteuthida and
squid from Diplobelida,
making Belemnoidea paraphyletic. The
spirulid Longibelus could be a
transitional species between belemnoids and squid...
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Ellesmerocerida Orthocones: Endocerida, Orthocerida,
Actinocerida Brevicones: Ascocerida,
Oncocerida Earliest coiled cephalopods:
Tarphycerida Spirulid?: Shimanskya...
-
Ellesmerocerida Orthocones: Endocerida, Orthocerida,
Actinocerida Brevicones: Ascocerida,
Oncocerida Earliest coiled cephalopods:
Tarphycerida Spirulid?: Shimanskya...
