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Lanthanaster
Taxonomy
Lanthanaster was named by Branstrator (1972) [Sepkoski's age data: O Ashg-l Sepkoski's reference number: 339]. It is not extant. Its type is Agalmaster intermedius.
It was assigned to Schuchertiidae by Branstrator (1972); to Hemizonida by Sepkoski (2002); to Palasteriscinae by Dean Shackleton (2005); to Palasteriscidae by Blake and Rozhnov (2007); and to Platanasteridae by Blake (2018).
It was assigned to Schuchertiidae by Branstrator (1972); to Hemizonida by Sepkoski (2002); to Palasteriscinae by Dean Shackleton (2005); to Palasteriscidae by Blake and Rozhnov (2007); and to Platanasteridae by Blake (2018).
Species
Synonymy list
Year | Name and author |
---|---|
1972 | Lanthanaster Branstrator |
2002 | Lanthanaster Sepkoski |
2005 | Lanthanaster Dean Shackleton pp. 94-95 |
2007 | Lanthanaster Blake and Rozhnov p. 521 |
2018 | Lanthanaster Blake p. 29 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Diagnosis
Reference | Diagnosis | |
---|---|---|
J. W. Branstrator 1972 | Schuchertiid sea stars exhibiting a single, large, thecal-bordering axillary inframarginal in each actinal interradius and thecal-bordering proximal inframarginals. | |
J. Dean Shackleton 2005 | Tear-drop shaped axillary. |