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Richardosteus
Taxonomy
Richardosteus was named by Long et al. (2014).
It was assigned to Buchanosteidae by Long et al. (2014).
It was assigned to Buchanosteidae by Long et al. (2014).
Synonymy list
| Year | Name and author |
|---|---|
| 2014 | Richardosteus Long et al. p. 32 |
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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. †Richardosteus Long et al. 2014
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. A. Long et al. 2014 | A buchanosteoid arthrodire with a skull in which the lateral articular fossa of the paranuchal is broad and shallow, the ratio of width of the fossa to the outer edge of fossa to midline is ∼50%. AMV of trunk shield with wide flaring anterolateral angles separating IL from AVL plates; AVLs evidently separating AMV from PMV; PVL plate lacking ventrolateral ridge; left PVL extensively overlaps right plate. Dermal ornamentation of the skull comprising closely packed aligned tubercles; on the trunk armour tubercles show asymmetrical caps, often with multiple secondary cap overgrowth. Ornament of scales comprising tightly bunched stellate tubercles with 5–8 radiating ridges, these ridges with a distinctive micro-ornament of serrated ledges. |
Measurements
No measurements are available
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| Source: o = order, subp = subphylum | |||||
| Reference: Carroll 1988 | |||||