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Blieckaspis priscillae
Taxonomy
Protaspis (Protaspis) priscillae was named by Elliott and Ilyes (1996). Its type specimen is FMNH-PF867 and is a 3D body fossil. It is the type species of Blieckaspis.
It was recombined as Pteraspis priscillae by Denison (1970); it was recombined as Errivaspis priscillae by Blieck (1984); it was recombined as Blieckaspis priscillae by Elliott and Ilyes (1996).
It was recombined as Pteraspis priscillae by Denison (1970); it was recombined as Errivaspis priscillae by Blieck (1984); it was recombined as Blieckaspis priscillae by Elliott and Ilyes (1996).
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Protaspis (Protaspis) priscillae Denison pp. 348-349 figs. figs. 82, 83 |
| 1970 | Pteraspis priscillae Denison pp. 5-6 figs. Fig. 2 |
| 1984 | Errivaspis priscillae Blieck p. 48 figs. Fig. 43E |
| 1996 | Blieckaspis priscillae Elliott and Ilyes p. 156 figs. Figures 4, 5 |
| 1996 | Protaspis (Protaspis) priscillae Elliott and Ilyes pp. 348-349 figs. figs. 82, 83 |
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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.
†Blieckaspis priscillae Elliott and Ilyes 1996
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. K. Elliott and R. R. Ilyes 1996 | Additional to Denison, 1953, 1970). Large pteraspidid with slender dorsal shield and elongated, ta- pering rostrum. Pineal plate concave laterally, convex posteri- orly, and straight anteriorly; contacted laterally by long narrow median process of orbital plate. Orbital plate with short anterior and posterior processes. Branchial plate long and narrow; bran- chial opening half-way down lateral margin of dorsal disc, dor- sally directed, bounded by branchial plate and dorsal disc. Cor- nual plate broad and triangular with posterolateral point; scale- like ornamentation on lateral margin. Ornamentation of flat- to round-crested ridges with very fine crenulations, 8-9 per mm in the midline, becoming sharp-crested, more coarsely crenulate, and 7 per mm on shield margins. |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range: Late/Upper Emsian or 402.50000 to 391.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Emsian | USA (California) | Blieckaspis priscillae (206448) |