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Sceptaspis lincolnensis
Taxonomy
Pterygometopus lincolnensis was named by Branson (1909). It is not extant. Its type specimen is UC 11484c, a cephalon/head (cranidium). Its type locality is Residuary Auburn Chert Beds, east of Auburn , which is in a Turinian carbonate claystone in the Decorah Formation of Missouri.
It was recombined as Calyptaulax lincolnensis by Delo (1940); it was recombined as Sceptaspis lincolnensis by Ludvigsen and Chatterton (1982).
It was recombined as Calyptaulax lincolnensis by Delo (1940); it was recombined as Sceptaspis lincolnensis by Ludvigsen and Chatterton (1982).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Pterygometopus lincolnensis Branson p. 46 figs. Pl. 7, figs. 17-19 |
| 1919 | Pterygometopus conjuens Foerste p. 396 figs. Pl. 19, fig. 19 |
| 1940 | Calyptaulax conjuens Delo p. 101 figs. Pl. 12, fig. 21 |
| 1940 | Calyptaulax lincolnensis Delo p. 104 figs. Pl. 13, figs. 5,6 |
| 1942 | Calliops huronensis Okulitch p. 99 figs. Pl. 1, figs. 7-9. |
| 1942 | Calyptaulax ottawanus Okulitch p. 102 figs. pl. 1, f. 2-3 |
| 1947 | Calyptaulax calderi Wilson p. 58 figs. Pl.10 f.9, 10. |
| 1982 | Sceptaspis lincolnensis Ludvigsen and Chatterton p. 2194 |
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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.
†Sceptaspis lincolnensis Branson 1909
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Invalid names: Calliops huronensis Okulitch 1942 [synonym], Calyptaulax calderi Wilson 1947 [synonym], Calyptaulax conjuens Foerste 1919 [synonym], Calyptaulax ottawanus Okulitch 1942 [synonym]
Diagnosis
No diagnoses are available