The Paleozoic assembly of the holocephalian body plan far preceded post-Cretaceous radiations into the ocean depths

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 5, 2024

Abstract Among cartilaginous fishes, Holocephali represents the species-depauperate, morphologically conservative sister to sharks, rays, and skates last survivor of a once far greater Paleozoic Mesozoic diversity. Currently, holocephalian diversity is concentrated in deep-sea species, suggesting this lineage might contain relictual that persisted ocean depths. Yet, relationships living holocephalians their extinct relatives timescale diversification species remains unclear. Here, we reconstruct evolutionary history using comprehensive morphological DNA sequence datasets. Our results suggest entered diversified deep (>1000 m) waters after Cretaceous-Paleogene mass extinction, contrasting with hypothesis ecosystem has acted as refugium ancient fishes. These invasions were decoupled from evolution key features body plan, including crushing dentition, single frontal clasper, holostylic jaw suspension, Era, considerably postdated appearance familes by 150 million years ago during major period biotic turnover oceans termed Marine Revolution. clarify origins recent surviving clade among numerous lineages.

Language: Английский

---

The Palaeozoic assembly of the holocephalan body plan far preceded post-Cretaceous radiations into the ocean depths

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2024, Volume and Issue: 291(2033)

Published: Oct. 1, 2024

Among cartilaginous fishes, Holocephali represents the species-depauperate, morphologically conservative sister to sharks, rays and skates last survivor of a once far greater Palaeozoic Mesozoic diversity. Currently, holocephalan diversity is concentrated in deep-sea species, suggesting that this lineage might contain relictual now persists ocean depths. However, relationships living holocephalans their extinct relatives timescale diversification remain unclear. Here, we reconstruct evolutionary history using comprehensive morphological DNA sequence datasets. Our results suggest crown entered diversified deep (below 1000 m) waters after Cretaceous–Palaeogene mass extinction, contrasting with hypothesis ecosystem has acted as refugium ancient fishes. These invasions were decoupled from evolution key features body plan, including crushing dentition, single frontal clasper, holostylic jaw suspension, during Era. these considerably postdated appearance extant families 150 million years ago major period biotic turnover oceans termed Marine Revolution. clarify origins recent surviving clade among numerous lineages.

Language: Английский

---

Correction: Colonization of the ocean floor by jawless vertebrates across three mass extinctions

BMC Ecology and Evolution, Journal Year: 2024, Volume and Issue: 24(1)

Published: July 12, 2024

Language: Английский

---