Polarasterias Rousseau & Gale, 2018

Rousseau, Julie, Gale, Andrew Scott & Thuy, Ben, 2018, New articulated asteroids (Echinodermata, Asteroidea) and ophiuroids (Echinodermata, Ophiuroidea) from the Late Jurassic (Volgian / Tithonian) of central Spitsbergen, European Journal of Taxonomy 411, pp. 1-26 : 5-6

publication ID

https://doi.org/ 10.5852/ejt.2018.411

publication LSID

lsid:zoobank.org:pub:20D7A744-CE8B-4E6C-92DA-71A9B8C3D805

DOI

https://doi.org/10.5281/zenodo.3816187

persistent identifier

https://treatment.plazi.org/id/6A46CC92-9366-4DCB-94B5-7313D76EB0A1

taxon LSID

lsid:zoobank.org:act:6A46CC92-9366-4DCB-94B5-7313D76EB0A1

treatment provided by

Valdenar

scientific name

Polarasterias Rousseau & Gale
status

gen. nov.

Polarasterias Rousseau & Gale gen. nov.

urn:lsid:zoobank.org:act:6A46CC92-9366-4DCB-94B5-7313D76EB0A1

Type species

Polarasterias janusensis Rousseau & Gale gen. et sp. nov., by original designation.

Diagnosis

Asteriid with elongated arms, small disc, very broad ambulacral grooves with narrow adambulacrals and weakly developed or absent actinals. Abactinals cruciform, numerous, forming a rectilinear grid arranged in regular transverse rows of seven or more plates on each side of the arm. Tube feet strongly quadriserial.

Etymology

To emphasize the polar situation of the locality and with reference to the North Star Polaris.

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