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Kettneraspis angelini
Taxonomy
Acanthaloma angelini was named by Prantl and Pribyl (1949).
It was recombined as Leonaspis angelini by Bruton (1967); it was recombined as Leonaspis crenata angelini by Ramsköld (1984); it was recombined as Kettneraspis angelini by Ramsköld and Chatterton (1991).
It was recombined as Leonaspis angelini by Bruton (1967); it was recombined as Leonaspis crenata angelini by Ramsköld (1984); it was recombined as Kettneraspis angelini by Ramsköld and Chatterton (1991).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1949 | Acanthaloma angelini Prantl and Pribyl |
1967 | Leonaspis angelini Bruton |
1984 | Leonaspis crenata angelini Ramsköld |
1991 | Kettneraspis angelini Ramsköld and Chatterton p. 364 |
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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.
†Kettneraspis angelini Prantl and Pribyl 1949
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Diagnosis
Reference | Diagnosis | |
---|---|---|
L. Ramsköld 1984 | Occipital ring with stout, short, blunt, vertical median spine bearing occipital organ, flanked by pair of slender, pointed spines. Anterior border with row of about fourteen to eighteen tubercles. Free cheek with deep border furrow and convex (tr.) border. All twelve border spines round in section, the anterior four or five with swollen tips, the posterior pointed. Cephalon densely tuberculate. Thoracic axial rings with pair of pointed spines, decreasing in size backwards, anteromedian tubercle, and several symmetrically arranged smaller tubercles. Pygidium with long secondary spines. Second axial ring poorly defined posteriorly. Paired tubercles on axial rings, large tubercle on each pleural ridge, and additional tubercles on axis and anterolateral pleural areas. |