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Harpes sphenocephalus
Taxonomy
Harpes sphenocephalus was named by Johnson (2024). Its type specimen is NHMUK It 29246, an exoskeleton, and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2024 | Harpes sphenocephalus Johnson p. 51 figs. PL.4E-K |
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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.
†Harpes sphenocephalus Johnson 2024
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. G. Johnson 2024 | Cephalon widest across eyes. Glabella narrow anteriorly-rounded cone without tubercles on dorsal surface. Brim broad (sag.), profile straight (neither convex or concave) and moderately steeply-sloping. External border runs straight, slanting adaxially, from point where it passes eyes to two thirds of way down (exsag.) the prolongations. Eyes set close to midway between axial furrow and inner margin of fringe. Perforations on brim moderately large, becoming smaller distally until middle of rim. Perforations on genal roll much finer except proximal to girder, where there are two rows of larger perforations. Terminal spines long, slanting obliquely adaxially. |