Alkaidia Blake & Reid, 1998

Gale, Andy S. & Jagt, John W. M., 2021, The fossil record of the family Benthopectinidae (Echinodermata, Asteroidea), a reappraisal, European Journal of Taxonomy 755, pp. 149-190 : 183

publication ID

https://doi.org/ 10.5852/ejt.2021.755.1405

publication LSID

lsid:zoobank.org:pub:F9105E33-3E8B-4B3C-88B3-0316207B70F6

DOI

https://doi.org/10.5281/zenodo.5033008

persistent identifier

https://treatment.plazi.org/id/F160A367-7154-FF90-FD9A-7508FABD244E

treatment provided by

Felipe

scientific name

Alkaidia Blake & Reid, 1998
status

 

Alkaidia Blake & Reid, 1998

Alkaidia Blake & Reid, 1998: 529 , fig. 8.

Type species

Alkaidia sumralli Blake & Reid, 1998 , by original designation.

Diagnosis

Terminasteridae with elongated rhombic superomarginals directed obliquely towards radials; inferomarginals with tall, distally swollen central spine bases and prominent groove for spine attachment; radials (except primary radial) rhombic in outline.

Assigned species

In addition to the type species, A. megaungula Ewin & Gale, 2020 .

Remarks

Alkaidia ranges from the Barremian to Cenomanian and appears to be restricted to the western Tethys.

Kingdom

Animalia

Phylum

Echinodermata

Class

Asteroidea

SubClass

Neoasteroidea

Order

Paxillosida

SubOrder

Zorocallina

Family

Benthopectinidae

Loc

Alkaidia Blake & Reid, 1998

Gale, Andy S. & Jagt, John W. M. 2021
2021
Loc

Alkaidia

Blake D. B. & Reid R. III. 1998: 529
1998
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