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Onchocephalus buelnaensis
Taxonomy
Onchocephalus buelnaensis was named by Lochman (1952). Its type specimen is U.S.N.M. No.115724, a cephalon/head (cranidium), and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1952 | Onchocephalus buelnaensis Lochman pp. 104-105 figs. 5, 18-29 |
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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.
†Onchocephalus buelnaensis Lochman 1952
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| C. Lochman 1952 | In so far as the type, Onchocephalus thia (Walcott), can be compared accurately, because of its poor preservation, it appears to be very similar to O. huelnaensis, but differs from it in having the brim narrower, flat, and definitely horizontal in position. In O. leuka (Walcott) the wider, flat, slightly ascending border is quite different. O. huelnaensis seems quite close to O. virginicus (Resser), but the preservation of the single holotype cranidium of that species is so poor that specific characters are not really distinguishable. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004 | |||||