ArticleSwiss journal of palaeontology2021
Evolutionary development of the cephalopod arm armature: a review.
Article in Swiss journal of palaeontology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 10 citations in OpenAlex.
- Uniqueness and predictability in evolution and the history of mollusks.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- 'Arm brains' (axial nerves) of Jurassic coleoids and the evolution of coleoid neuroanatomy.Swiss journal of palaeontology · 2023Article
- Neurotransmission and neuromodulation systems in the learning and memory network of Octopus vulgaris.Journal of morphology · 2022Article
- Mineralized belemnoid cephalic cartilage from the late Triassic Polzberg Konservat-Lagerstätte (Austria).PloS one · 2022Article
- Cephalopod palaeobiology: evolution and life history of the most intelligent invertebrates: Honoring Sigurd von Boletzky and his contributions to cephalopod research.Swiss journal of palaeontology · 2022Article
Corrections and comments
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Authors and funding
3 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The cephalopod arm armature is certainly one of the most important morphological innovations responsible for the evolutionary success of the Cephalopoda. New palaeontological discoveries in the recent past afford to review and reassess origin and homology of suckers, sucker rings, hooks, and cirri. Since a priori character state reconstructions are still ambiguous, we suggest and discuss three different evolutionary scenarios. Each of them is based on the following assumptions: (1) Neocoleoidea uniting extant Decabrachia and Octobrachia is monophyletic (= proostracum-bearing coleoids); (2) extinct Belemnitida and Diplobelida are stem decabrachians; (3) proostracum-less coleoids (Hematitida, Donovaniconida, Aulacoceratida) represent stem-neocoleoids; (4) Ammonoidea and Bactritoidea are stem coleoids. We consider a scenario where belemnoid hooks derived from primitive suckers as well-supported. Regarding belemnoid hooks and suckers as homologues implies that belemnoid, oegopsid, and probably ammonoid arm hooks arose through parallel evolution. Our conclusions challenge the widespread opinion, whereupon belemnoid hooks evolved de novo, and instead support earlier ideas formulated by Sigurd von Boletzky.
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Registered trials
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