ArticleRoyal Society open science2019
Mechanisms and drivers of belemnite body-size dynamics across the Pliensbachian-Toarcian crisis.
Article in Royal Society open science, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 42 citations in OpenAlex.
- Identification of the mode of evolution in incomplete carbonate successions.BMC ecology and evolution · 2024Article
- Anatomy and size ofSwiss journal of palaeontology · 2024Article
- Morphological response accompanying size reduction of belemnites during an Early Jurassic hyperthermal event modulated by life history.Scientific reports · 2021Article
- Fossil evidence for vampire squid inhabiting oxygen-depleted ocean zones since at least the Oligocene.Communications biology · 2021Article
- Fossilized leftover falls as sources of palaeoecological data: a 'pabulite' comprising a crustacean, a belemnite and a vertebrate from the Early Jurassic Posidonia Shale.Swiss journal of palaeontology · 2021Article
- Jaws of a large belemnite and an ammonite from the Aalenian (Middle Jurassic) of Switzerland.Swiss journal of palaeontology · 2020Article
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5 authors at 3 institutions in 3 countries.
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Abstract
Body-size reduction is considered an important response to current climate warming and has been observed during past biotic crises, including the Pliensbachian-Toarcian crisis, a second-order mass extinction. However, in fossil cephalopod studies, the mechanisms and their potential link with climate are rarely investigated and palaeobiological scales of organization are not usually differentiated. Here, we hypothesize that belemnites reduce their adult size across the Pliensbachian-Toarcian boundary warming event. Belemnite body-size dynamics across the Pliensbachian-Toarcian boundary in the Peniche section (Lusitanian Basin, Portugal) were analysed based on the newly collected field data. We disentangle the mechanisms and the environmental drivers of the size fluctuations observed from the individual to the assemblage scale. Despite the lack of a major taxonomic turnover, a 40% decrease in rostrum volume is observed across the Pliensbachian-Toarcian boundary, before the Toarcian Oceanic Anoxic Event where belemnites go locally extinct. The pattern is mainly driven by a reduction in adult size of the two dominant species,
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