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Kollarcephalus
Taxonomy
Kollarcephalus was named by Brezinski (2000). Its type is Kollarcephalus granatai.
It was assigned to Phillipsiidae by Brezinski (2000); and to Proetidae by Jell and Adrain (2002).
It was assigned to Phillipsiidae by Brezinski (2000); and to Proetidae by Jell and Adrain (2002).
Species
K. granatai (type species), K. placida
Synonymy list
Year | Name and author |
---|---|
2000 | Kollarcephalus Brezinski p. 1055 |
2002 | Kollarcephalus Jell and Adrain p. 393 |
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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.
G. †Kollarcephalus Brezinski 2000
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†Kollarcephalus granatai Brezinski 2000
†Kollarcephalus placida Vogdes 1896
Diagnosis
Reference | Diagnosis | |
---|---|---|
D. K. Brezinski 2000 | Smooth, oval, moderately vaulted exoskeleton. Glabellar broad at base, widest between palpebrae, slightly taper- ing, broadly anteriorly rounded, overhanging anterior margin. Glabellar furrows shallow, indistinct. Anterior facial sutures par- allel to dorsal furrow and anterior lobe of glabella. Pygidium with short axis (0.75 total pygidial length), subdued relief, semicircular in outline, border with imprint of ribs. |