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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Protaspis (Protaspis)
Taxonomy
Protaspis (Protaspis) was named by Bryant (1933).
It was assigned to Protaspis by Bryant (1933) and Denison (1970).
It was assigned to Protaspis by Bryant (1933) and Denison (1970).
Synonymy list
| Year | Name and author |
|---|---|
| 1933 | Protaspis (Protaspis) Bryant p. 156 |
| 1970 | Protaspis (Protaspis) Denison p. 9 |
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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.
Subg. †Protaspis (Protaspis) Bryant 1933
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†Protaspis (Protaspis) brevispina Denison 1970
†Protaspis (Protaspis) bucheri Bryant 1932
†Protaspis (Protaspis) dorfi Bryant 1932
†Protaspis (Protaspis) mcgrewi Denison 1970
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. H. Denison 1970 | Dorsalshieldofmoderatebreadth. Ornamentation consisting of ridges of dentine arranged approximately parallel to lines of growth. Branchial openings facing posteriorly or postero- dorsally, and bounded externally by the branchial plates and sometimes by the dorsal disc, with cornual plates absent or poorly developed. |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range: Lochkovian or 419.20000 to 410.80000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lochkovian | USA (Wyoming) | Protaspis mcgrewi, Protaspis brevispina (153534) | |
| Early/Lower Devonian | USA (Wyoming) | Protaspis mcgrewi, Protaspis brevispina (26179) |