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Sertulaster keslingi
Taxonomy
Sertulaster keslingi was named by Blake and Koniecki (2019). Its type specimen is UMMP 74695, a partial skeleton, and it is a 3D body fossil. Its type locality is LaFarge Belleville Quarry, Verulam Fm., which is in a Katian shallow subtidal wackestone/siltstone in the Verulam Formation of Canada. It is the type species of Sertulaster.
Synonymy list
| Year | Name and author |
|---|---|
| 2019 | Sertulaster keslingi Blake and Koniecki p. 106 figs. Figures 1.1–1.6; 2.1–2.4 |
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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.
†Sertulaster keslingi Blake and Koniecki 2019
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. B. Blake and J. Koniecki 2019 | Palaeasterid with only five closely spaced dorsal arm ossicular series, these consisting of two superomarginal (SM), two inferomarginal (IM), and one carinal series. Each interbrachium with two proportionately large, upright superomarginal ossicles. Relatively small axillary at disk edge. Primary circlet of 10 ossicles; supernumerary ossicles lacking in circlet; circlet ossicles robust, subelliptical in outline. Interradials inset from radials. Primary circlet enclosing central area of an outer ring of 10? larger ossicles, these in turn enclosing two? medial ossicles, the larger ossicles partially separated by closely fitted smaller ossicles. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan 1992, Aberhan et al. 2004 | |||||