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Glaphurochiton carbonarius
Taxonomy
Chiton carbonarius was named by Stevens (1858). It is a 3D body fossil. Its type locality is Roof rock of the No. 7 coal, which is in a Desmoinesian/Gzhelian marine limestone in the Fort Scott Limestone Formation of Illinois. It is the type species of Glaphurochiton.
It was recombined as Pterochiton carbonarius by Hoare et al. (1972); it was recombined as Glaphurochiton carbonarius by Raymond (1910) and Smith and Hoare (1987).
It was recombined as Pterochiton carbonarius by Hoare et al. (1972); it was recombined as Glaphurochiton carbonarius by Raymond (1910) and Smith and Hoare (1987).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1858 | Chiton carbonarius Stevens p. 264 |
| 1910 | Glaphurochiton carbonarius Raymond p. 153 figs. pl. 26, fig. 6, p1. 28, figs. 15, 16 |
| 1956 | Helminthochiton concinnus Richardson pp. 62 – 65 figs. 34 – 36 |
| 1972 | Pterochiton carbonarius Hoare et al. pp. 677 – 678 figs. pl. 1 figs. 2, 3; pl. 2, figs. 3-6 |
| 1987 | Glaphurochiton carbonarius Smith and Hoare p. 18 |
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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.
†Glaphurochiton carbonarius Stevens 1858
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Invalid names: Helminthochiton concinnus Richardson 1956 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. D. Hoare et al. 1972 | Body narrow, elongate, three to five times as long as wide. Head valve large, length-width nearly equidimensional to slightly wider than long, anterior and lateral slopes steep and apex projected posteriorly. Intermediate valves slightly wider than long, jugum rounded and not prominently set off from jugal areas, jugal sinus not well developed and apex projected posteriorly overlapping next valve. Tail valve equidimensional to slightly wider than long, broadly rounded posterior margin, central keel terminating in a blunt and ventrally curved mucro at or just posterior to mid-length of valve and lateral and posterior slopes concave near keel becoming nearly flat at margins. Sutural laminae well developed, broad and narrowly curved anteriorly. Surface sculpture of small granules arranged in rough concentric rows near margins of tail and intermediate valves, basic granule pattern quincunx and strong growth lines may be present near margin of all larger valves. Girdle unknown. |
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Kiessling 2003 | |||||
Age range: base of the Meramecian to the top of the Missourian or 343.00000 to 303.70000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Meramecian | Canada (Alberta) | Chiton carbonarius (62396) | |
| Desmoinesian | USA (Ohio) | Pterochiton carbonarius (71963 72004 79324 79327) | |
| Desmoinesian - Gzhelian | USA (Illinois) | Chiton carbonarius (type locality: 128873) | |
| Missourian | USA (Pennsylvania) | Glaphurochiton carbonarius (233315) |