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Protopteraspis
Taxonomy
Protopteraspis was named by Leriche (1924).
It was assigned to Pteraspidinae by Denison (1970); to Pteraspididae by Blieck et al. (2002); and to Protopteraspididae by Blieck (1984), Randle and Sansom (2017).
It was assigned to Pteraspidinae by Denison (1970); to Pteraspididae by Blieck et al. (2002); and to Protopteraspididae by Blieck (1984), Randle and Sansom (2017).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1924 | Protopteraspis Leriche |
| 1950 | Pteraspis (Simopteraspis) White p. 76 |
| 1970 | Protopteraspis Denison p. 3 |
| 1970 | Pteraspis (Simopteraspis) Denison p. 76 |
| 1984 | Protopteraspis Blieck p. 105 |
| 2002 | Protopteraspis Blieck et al. p. 812 |
| 2017 | Protopteraspis Randle and Sansom p. 596 |
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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. †Protopteraspis Leriche 1924
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†Protopteraspis arctica Elliott 1983
†Protopteraspis corniga Elliott 1983
†Protopteraspis gosseleti Leriche 1906
†Protopteraspis micra Ilyes et al. 1995
†Protopteraspis primaeva Kiaer 1928
†Protopteraspis pygmaea Elliott 1983
†Protopteraspis sartokia Elliott 1983
†Protopteraspis siliktokia Elliott 1983
†Protopteraspis vogti Kiaer 1928
Invalid names: Simopteraspis Denison 1970 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. H. Denison 1970 | Small to medium-sized pteraspids. The rostrum short and bluntly rounded, with its ventral preoral surface short and lacking a preoral field. 1 Branchial openings well in advance of the postero-lateral corners of the dorsal shield, and bounded by branchial and cornual plates (fig. 1). |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| References: Kiessling 2004, Carroll 1988 | |||||
Age range: Early/Lower Lochkovian or 419.62000 to 416.80000 Ma
Collections (33 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Lochkovian | United Kingdom | P. gosseleti (238749 238779 238780 238781 238782 238783 238784 238785 238786 238788 238789 238790 238791 238792 238793 238794 238795 238797) | |
| Early/Lower Lochkovian | Canada (Nunavut) | P. sp. indet. (238861) | |
| Lochkovian | Canada (Nova Scotia) | P. sp. (14201) | |
| Lochkovian | Svalbard and Jan Mayen | P. micra (239099) | |
| Lochkovian | France | P. gosseleti (26983) | |
| Lochkovian | Norway | P. primaeva (237816 237818) P. sp. (26929 237815 237817 237820 237821 237823 237826) P. vogti (237822) | |
| Lochkovian | Russian Federation | P. sp. (90330) |