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Bathyurus (Raymondites) longispinus
Taxonomy
Bathyurus longispinus was named by Walcott (1876). Its type specimen is MCZ 107237, an exoskeleton (A nearly complete exoskeleton), and it is a 3D body fossil.
It was recombined as Raymondites longispinus by Whittington (1953); it was recombined as Bathyurus (Raymondites) longispinus by Swisher et al. (2015).
It was recombined as Raymondites longispinus by Whittington (1953); it was recombined as Bathyurus (Raymondites) longispinus by Swisher et al. (2015).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1876 | Bathyurus longispinus Walcott p. 94 |
| 1953 | Raymondites longispinus Whittington p. 625 figs. pl. 65, figs. 10, 14–16, 19, pl. 69, fig. 29. |
| 2015 | Bathyurus (Raymondites) longispinus Swisher et al. pp. 129 - 130 figs. 6.2–6.7, 7–9 |
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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.
†Bathyurus (Raymondites) longispinus Walcott 1876
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. E. Swisher et al. 2015 | Axial pygidial spine and occipital spine absent; array of large, pointed tubercles along posterior margin of LO. Faint anterior border furrow expressed on preocular area, defined most clearly by change in sculpture from tubercles on preocular field (often weak on external surface of exoskeleton; Fig. 7.3) to mostly terrace ridges on the border (e.g., Fig. 6.2). Anterior branches of facial sutures curved outwards, with maximum width of preocular area behind border furrow. Palpebral area of fixgena with sculpture of coarse terrace ridges. Pygidium transversely subelliptical in outline, length equal to approximately 45% of width. Only one well defined axial ring on external surface of axis (Fig. 8.4). |
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Whittington et al. 1997, Harrington et al. 1959, Fortey and Owens 1999, Aberhan et al. 2004 | |||||
Age range: base of the Middle Ordovician to the top of the Rocklandian or 470.00000 to 449.60000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician | USA (New York) | Raymondites longispinus (23122) | |
| Blackriveran | USA (Illinois, Iowa) | Raymondites longispinus (23789 23790 23791 23792 23794) | |
| Blackriveran | USA (Iowa/Wisconsin) | Raymondites longispinus (23118 23119 23120) | |
| Blackriveran - Rocklandian | USA (Minnesota) | Raymondites longispinus (23276) | |
| Blackriveran - Rocklandian | USA (Illinois, Iowa) | Raymondites longispinus (23795) |