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Stroboceras gordoni
Taxonomy
Stroboceras gordoni was named by Niko and Mapes (2005) [Stroboceras cf. S. sulcatum (Sowerby). Gordon, 1964, p. 145, pl. 11, fig. 4, text-fig. 21A.]. Its type specimen is OUZC 5104, a shell, and it is not a trace fossil. Its type locality is Loc. 1. Lick Mountain., which is in a Chesterian reef, buildup or bioherm grainstone/packstone in the Pitkin Formation of Arkansas.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2005 | Stroboceras gordoni Niko and Mapes pp. 239 – 240 figs. 2.9, 3.1, 3.3, 3.5, 3.6, 4, 5 |
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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.
†Stroboceras gordoni Niko and Mapes 2005
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. Niko and R. H. Mapes 2005 | Species of Stroboceras with width/height ratios of 0.72–0.76 in adoral whorl, two bilaterally symmetrical lateral ridges, and weak nodes at intersections of ridges and growth lines; lg 2 (second lateral groove; see the description for its detailed definition) narrow; ventrolateral saddles in peristome have very shallow bilobate rim; a siphuncular position ratio of approximately 0.23. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Chesterian or 335.40000 to 323.40000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Chesterian | USA (Arkansas) | Stroboceras gordoni (type locality: 79624 79627) |