Dataset Information

A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific.

ABSTRACT: The recent discovery of two new species of kiwaid squat lobsters on hydrothermal vents in the Pacific Ocean and in the Pacific sector of the Southern Ocean has prompted a re-analysis of Kiwaid biogeographical history. Using a larger alignment with more fossil calibrated nodes than previously, we consider the precise relationship between Kiwaidae, Chirostylidae and Eumunididae within Chirostyloidea (Decapoda: Anomura) to be still unresolved at present. Additionally, the placement of both new species within a new "Bristly" clade along with the seep-associated Kiwa puravida is most parsimoniously interpreted as supporting a vent origin for the family, rather than a seep-to-vent progression. Fossil-calibrated divergence analysis indicates an origin for the clade around the Eocene-Oligocene boundary in the eastern Pacific ~33-38 Ma, coincident with a lowering of bottom temperatures and increased ventilation in the Pacific deep sea. Likewise, the mid-Miocene (~10-16 Ma) rapid radiation of the new Bristly clade also coincides with a similar cooling event in the tropical East Pacific. The distribution, diversity, tree topology and divergence timing of Kiwaidae in the East Pacific is most consistent with a pattern of extinctions, recolonisations and radiations along fast-spreading ridges in this region and may have been punctuated by large-scale fluctuations in deep-water ventilation and temperature during the Cenozoic; further affecting the viability of Kiwaidae populations along portions of mid-ocean ridge.

SUBMITTER: Roterman CN

PROVIDER: S-EPMC5856415 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific.

Roterman Christopher Nicolai CN Lee Won-Kyung WK Liu Xinming X Lin Rongcheng R Li Xinzheng X Won Yong-Jin YJ

PloS one 20180316 3

The recent discovery of two new species of kiwaid squat lobsters on hydrothermal vents in the Pacific Ocean and in the Pacific sector of the Southern Ocean has prompted a re-analysis of Kiwaid biogeographical history. Using a larger alignment with more fossil calibrated nodes than previously, we consider the precise relationship between Kiwaidae, Chirostylidae and Eumunididae within Chirostyloidea (Decapoda: Anomura) to be still unresolved at present. Additionally, the placement of both new spec ...[more]

PMID: 29547631

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Dataset Information

A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific.

Publications

A new yeti crab phylogeny: Vent origins with indications of regional extinction in the East Pacific.

Similar Datasets

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