Proteroctopus ribeti in coleoid evolution

  title={Proteroctopus ribeti in coleoid evolution},
  author={Isabelle Kruta and Isabelle Rouget and Sylvain J. Charbonnier and J{\'e}r{\'e}mie Bardin and Vincent Fernandez and Damien Germain and Arnaud Brayard and Neil H. Landman},
Palaeontological data are key elements for inferring ancestral character states and the assembly of character complexes, but cephalopod fossils preserving soft tissues are very rare. The exceptionally well‐preserved, unique specimen of Jurassic Proteroctopus ribeti Fischer & Riou from the Lagerstätte of La‐Voulte‐sur‐Rhône (c. 165 Ma, France) is one of the few fossil octopod related taxa, but is rarely considered in evolutionary studies. In this paper, we used synchrotron microtomography to… 

Exceptional soft-tissue preservation of Jurassic Vampyronassa rhodanica provides new insights on the evolution and palaeoecology of vampyroteuthids

Although soft tissues of coleoid cephalopods record key evolutionary adaptations, they are rarely preserved in the fossil record. This prevents meaningful comparative analyses between extant and

A Preliminary Cephalopod Baraminology Study Based on the Analysis of Mitochondrial Genomes and Morphological Characteristics

The genome analysis study was augmented with the analysis of two morphological character sets which, when combined cover 72 cephalopod species, even fossil taxa which represent the palaeobaramin, and suggests that Decapods and Octopods each form a single holobaramin within the class Cephalopsoda.

Evolutionary development of the cephalopod arm armature: a review

The conclusions challenge the widespread opinion, whereupon belemnoid hooks evolved de novo, and instead support earlier ideas formulated by Sigurd von Boletzky.

First Middle–Late Jurassic gladius vestiges provide new evidence on the detailed origin of incirrate and cirrate octopuses (Coleoidea)

The gladius vestige morphology suggests that the mode of locomotion and the life style of these shallow water inhabitants were similar to those of extant deep-sea octopods and that the Patelloctopodidae represents the stem group of the Octopoda (Cirrata and IncirRata).

Exceptional preservation requires fast biodegradation: thylacocephalan specimens from La Voulte‐sur‐Rhône (Callovian, Jurassic, France)

Konservat‐Lagerstätten are seen as snapshots of past biodiversity for a given location and time. However, processes leading to the exceptional morphological preservation of fossils in these deposits

Distraction sinking and fossilized coleoid predatory behaviour from the German Early Jurassic

A fossil of a co-occurrence of representatives of two different octobrachian coleoid species from the Toarcian Posidonienschiefer of Ohmden near Holzmaden supports the idea that primitive vampyromorphs pursued diverse feeding strategies and were not yet adapted to being opportunistic feeders in oxygen minimum zones like their modern relative Vampyroteuthis.

Fossil evidence for vampire squid inhabiting oxygen-depleted ocean zones since at least the Oligocene

Micropalaeontological, palaeoecological, and geochemical analyses demonstrate that Necroteuthis hungarica inhabited bathyal environments with bottom-water anoxia and high primary productivity in salinity-stratified Central Paratethys basins, and suggest that the Cretaceous and the early Cenozoic OMZs triggered their deep-sea specialization.

The Current State of Cephalopod Science and Perspectives on the Most Critical Challenges Ahead From Three Early-Career Researchers

This review and prospectus is also intended to suggest some concrete near-term goals to cephalopod researchers and inspire those working outside the field to consider the revelatory potential of these remarkable creatures.

Effects of prenatal stress on sepia officinalis

Les experiences ont egalement demontre qu'un facteur de stress completement artificiel (lumiere forte) affectait un eventail plus large de comportements chez the progeniture qu’un stress naturel (odeur de predateur).



A phylogeny of fossil and living neocoleoid cephalopods

A morphological data matrix including both extinct and extant taxa is presented and a octopodiform interpretation for most fossil coleoids is suggested and the fossil sister taxon to the octopods is suggested to be Plesioteuthididae.

Gladius-bearing coleoids from the Upper Cretaceous Lebanese Lagerstätten: diversity, morphology, and phylogenetic implications

Two transverse rows of sessile suckers are document for the first time and this strongly supports the phylogenetic proximity of D. syriaca with modern vampyropods rather than with modern decabrachians.

A combined approach to the phylogeny of Cephalopoda (Mollusca)

This study provides a comprehensive phylogenetic analysis of Cephalopoda (Mollusca) using a combination of molecular and morphological data, finding Vampyromorpha formed the sister group to Decabrachia under the majority of parameters.

Divergence time estimates for major cephalopod groups: evidence from multiple genes

The data support a Paleozoic origin of the Orders Vampyromorpha, Octopoda and the majority of the extant higher level decapodiform taxa and appear to have been obscured due to an ancient diversification of this group.

A multi-gene phylogeny of Cephalopoda supports convergent morphological evolution in association with multiple habitat shifts in the marine environment

This study presents the first statistical tests for correlation between convergent traits and habitat in cephalopods to better understand the evolutionary history of characters that are adaptive in benthic or pelagic environments, respectively and supports the hypothesis that habitat has influenced convergent evolution in the marine environment.

Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules

  • B. KrögerJ. VintherD. Fuchs
  • Geography, Environmental Science
    BioEssays : news and reviews in molecular, cellular and developmental biology
  • 2011
A growing body of evidence from the fossil record, embryology and Bayesian molecular divergence estimations provides a comprehensive picture of cephalopods' origins and evolution.

The ink sac clouds octopod evolutionary history

Strong evidence indicates that the family Octopodidae is paraphyletic and contains the gelatinous pelagic families and is placed within the superfamily Octopodoidea.


Palaeoecological conditions in the Vallecillo ocean suggest that P. pelagicus sp.

The locomotion system of Mesozoic Coleoidea (Cephalopoda) and its phylogenetic significance

A morphological comparison of shell-muscle contacts in coleoid cephalopods mainly from the Early Jurassic (Toarcian) Posidonia Shales of Holzmaden (Germany), the Middle Jurassic (Callovian) Oxford