The ancestory of the Cephalopoda. From Helcionella to Plectronoceras.

Kobayashi, Teiichi

doi:10.2183/pjab.63.135

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Stumbling Blocks For a Cephalopod Affinity – And Their Resol1

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1989

2021

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Cited by 4 publications

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“…There are at least four possible ancestries for Plectronoceras , the earliest siphunculate cephalopod (Yochelson et al. 1973; Dzik 1981, 2010; Kobayashi 1987; Peel 1991), notwithstanding disputed alternatives (Jell 1976; Teichert 1988). The characters that tie miscellaneous Cambrian shelly taxa to the cephalopod lineage are few in number, and are prone to both convergence and controversy; their interpretations should be regarded with suspicion.…”

Section: Stumbling Blocks For a Cephalopod Affinity – And Their Resolmentioning

confidence: 99%