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Brachyhipposiderus
Taxonomy
Brachyhipposiderus was named by Jell (1985) [Sepkoski Compendium: O (Trem-l) - O (Trem-u) Ref #927]. Its type is Brachyhipposiderus logimus.
It was assigned to Ptychopariida by Sepkoski (2002); and to Harpetidae by Jell (1985), Ebach and McNamara (2002), Jell and Adrain (2002), Beech and Lamsdell (2021).
It was assigned to Ptychopariida by Sepkoski (2002); and to Harpetidae by Jell (1985), Ebach and McNamara (2002), Jell and Adrain (2002), Beech and Lamsdell (2021).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1985 | Brachyhipposiderus Jell p. 71 |
| 2002 | Brachyhipposiderus Ebach and McNamara |
| 2002 | Brachyhipposiderus Jell and Adrain p. 351 |
| 2002 | Brachyhipposiderus Sepkoski |
| 2021 | Brachyhipposiderus Beech and Lamsdell p. 2220 |
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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. †Brachyhipposiderus Jell 1985
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†Brachyhipposiderus hunanensis Peng 1984
†Brachyhipposiderus logimus Jell 1985
†Brachyhipposiderus secundus Peng 1990
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. A. Jell 1985 | Cephalon sub-semicircular; lp furrow well impressed; alae distinct but low; occipital tubercle prominent; radial anastamosing caecal network on cheeks and brim with moderately large pits between caeca on brim gradually decreasing towards glabella; brim prolonged only a very short distance behind posterior of occipital ring, markedly concave posterolateral^ long genal spine at rear of prolongation; girder prominent, extending to tip of prolongation; check roll widened at level of posterior border furrow, extending adaxially almost as far as exsagitlal line of outer edge of eye tubercle. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997 | |||||
Age range: Lancefieldian or 484.30000 to 474.90000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadocian - Floian | Iran | B. logimus (66868) | |
| Lancefieldian | Australia (Victoria) | B. logimus (165725) |