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Aerliceaster nexosus
Taxonomy
Aerliceaster nexosus was named by Blake et al. (2020). Its type specimen is Holotype IMNH IP–276/850, Paratypes IMNH IP276/851-855 and is a 3D body fossil. It is the type species of Aerliceaster.
Synonymy list
| Year | Name and author |
|---|---|
| 2020 | Aerliceaster nexosus Blake et al. pp. 739-741 figs. figs 1, 2 |
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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.
†Aerliceaster nexosus Blake et al. 2020
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D.B. Blake et al. 2020 | Palasterinid, dorsal disk ossicles include centrale enclosed by two irregular cycles of similar, equidimensional, rounded to subpolygonal, closely fitted ossicles; additional, possibly smaller ossicles might be present. Dorsal arm ossicles arranged in three abutted series of uncertain identity; ossicles of three series similar to larger disk ossicles, medial series perhaps reaching arm terminus. Circlet of small ossicles suggesting either anus or hydropore near-central on disk. Inferomarginal series ossicles enlarged, approximately equidimensional; axillary present but differently developed among interbrachia. Actinals present, few on disk, proximally on arms; actinals varied in size, shape; arrangement irregular. Axials, adaxials typical of Euaxosida; mouth-angle ossicles little enlarged, mouth frame construction suggesting forward-and-backward motion for mouth-angle ossicles; other mouth frame ossicles not available. Extraxial ossicles pustulose, bearing granules, no enlarged spine bases; adaxials bearing small spines. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||
Collections
No collection or age range data are available