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Lacertasterias
Taxonomy
Lacertasterias was named by Blake and Guensburg (1989) [Sepkoski's age data: C Tour-l]. It is not extant. Its type is Lacertasterias elegans. It is the type genus of Lacertasteridae.
It was assigned to Hemizonida by Blake and Guensburg (1989); to Pustulosida by Sepkoski (2002); and to Lacertasteridae by Blake (2018).
It was assigned to Hemizonida by Blake and Guensburg (1989); to Pustulosida by Sepkoski (2002); and to Lacertasteridae by Blake (2018).
Species
L. elegans (type species)
Synonymy list
Year | Name and author |
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1989 | Lacertasterias Blake and Guensburg p. 336 |
2002 | Lacertasterias Sepkoski |
2018 | Lacertasterias Blake p. 34 |
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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.
G. †Lacertasterias Blake and Guensburg 1989
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†Lacertasterias elegans Blake and Guensburg 1989
Diagnosis
Reference | Diagnosis | |
---|---|---|
D. B. Blake and T. E. Guensburg 1989 | Multiarmed asteroid; abactinal sturdy; marginals closely arranged, interdigitate, thickened, with smaller granular ossicles distributed among larger; ambulacrals and adambulacrals stout with large podial basins; adambulacrals tansversely rounded, wide distally on arm but narrowed proximally, approximately first eight abutted across interbrachium to form adoral carina; orals large, smooth, keel-like, with large torus bearing prominent spines fitted between oral pair. |