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Marocaster coronatus
Taxonomy
Marocaster coronatus was named by Blake and Reboul (2011). Its type specimen is holotype MHNT.PAL.2010.2.2, paratypes 2010.2.4A, 2010.2.5, 2010.2.1H and is a 3D body fossil. It is the type species of Marocaster.
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Marocaster coronatus Blake and Reboul pp. 1024-1026 figs. Fig. 1, 2 |
| 2020 | Marocaster coronatus Ewin and Gale p. 937 figs. fig. 7 |
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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.
†Marocaster coronatus Blake and Reboul 2011
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake and R. Reboul 2011 | Dorsally arched, stellate goniasterid; abactinals paxillate, robust, linked at their bases by small rods. Interbrachials of primary circlet enlarged, shieldlike; first carinal small, second carinal enlarged and elongate, this carinal edged by a smaller abactinal on either side, it abutting the first carinal and an interbrachial. Interbrachial disk ossicles small, uniform. Marginals large, few in number between interbrachial plane and terminal. Superomarginal outline of arm ossicles nearly trapezoidal, intermarginal plane inclined proximally. Ossicular surfaces granulate, granules appearing uniform. Actinal fields small, actinal ossicles extending to third inferomarginal;
actinals polygonal, varied in size, irregular in shape and arrangement. Pedicellariae not recognized, spines beyond adambulacrals lacking. | |
| T.A.M. Ewin and A.S. Gale 2020 | Stellate goniasterid with broad, dorsally arched disc; abactinals paxillate, robust, and linked at base with small rods. Interbrachials of primary circlet enlarged and
shield-like; first carinal small, second enlarged and elongate and bordered smaller abactinal on either side abutting the first carinal and an interbrachial. Interbrachial disk ossicles small and uniform. Arms short, with few marginals in which articular surfaces between marginal pairs 1–4 are angled at 30–40° to lateral margin. Two distal marginals in contact over radius. Actinal fields small with varying sized polygonal ossicles extending to third inferomarginal. Pedicellariae not recognized, spines beyond adambulacrals lacking. |
Measurements
No measurements are available
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| Source: f = family, c = class, p = phylum | |||||
| References: Blake 1990, Aberhan et al. 2004, Aberhan 1992 | |||||