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Nerepisacanthus
Taxonomy
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2011 | Nerepisacanthus Burrow p. 1331 |
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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 | |
|---|---|---|
| C. Burrow 2011 | ?Acritolepid ischnacanthiform acanthodian estimated
at ca. 12 cm long, with normal body scales 0.3-0.7 mm long and wide with a mostly smooth flat crown bearing 6–12 short subparallel ridges along the anterior edge, formed of 3–5 superposed growth zones composed of odontocytic mesodentine, a convex base, and concave neck, each ca. 0.1 mm high; low scales 0.3 mm wide and 0.2 mm long that have a crown formed of elongate sharp areal growth ridges, forward of the pectoral region; gradual transition in size from trunk scales to fin-web scales; long, laterally com- pressed anterior dorsal fin spine with more than seven smooth, longitudinal ridges on each side that terminate at the distal tip or along the trailing edge; anteriormost and poster- iormost ridges on spine are widest, other ridges narrow, with all ridges separated by narrow grooves; thin perichondral os- sification of scapular region of endoskeletal pectoral girdle, with scapula having a broad shaft that narrows towards its base; “dentition” cones and small denticles in the branchial, pharyngeal, or oral region. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum | |||||
| References: Carroll 1988, Aberhan et al. 2004 | |||||