Paralophaster Fisher, 1940
publication ID |
https://doi.org/ 10.11646/zootaxa.4750.1.4 |
publication LSID |
lsid:zoobank.org:pub:CF37CEA8-E156-48A6-8A28-C94A294A75DF |
DOI |
https://doi.org/10.5281/zenodo.3706291 |
persistent identifier |
https://treatment.plazi.org/id/03DC87AB-FFD7-022D-17E8-1FD8FD7995D6 |
treatment provided by |
Plazi |
scientific name |
Paralophaster Fisher, 1940 |
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Paralophaster Fisher, 1940 View in CoL
Paralophaster Fisher, 1940: 175 View in CoL ; A. M. Clark 1962: 52; McKnight 2006: 10.
Myoraster Fisher, 1940: 181 View in CoL .
Comments. Paralophaster as outlined by Fisher (1940) are five-rayed solasterids diagnosed based on superomarginals which are largely identical with other abactinal paxillae and have abactinal paxillae arranged in oblique transverse rows. Lophaster has enlarged and widely separated superomarginal paxillae without paxillae in transverse rows.
Based on Mah and Foltz (2011) Paralophaster was supported as the sister taxon to the clade including Lophast- er as the sister to a branch containing Solaster and Crossaster ( Fig. 1 View FIGURE 1 ), suggesting the multi-armed condition was derived relative to a plesiomorphic five rayed condition.
Paralophaster contains four species, three of which occur primarily in Antarctic settings with one species, Paralophaster hyalinus H. E. S. Clark, 1970 from New Zealand. This species represents the first occurrence of Paralophaster outside of the Southern Hemisphere.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Paralophaster Fisher, 1940
Mah, Christopher L. & Fujita, Toshihiko 2020 |
Paralophaster
McKnight, D. G. 2006: 10 |
Clark, A. M. 1962: 52 |
Fisher, W. K. 1940: 175 |
Myoraster
Fisher, W. K. 1940: 181 |