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Schizodus acuminatus
Taxonomy
Schizodus acuminatus was named by Hoare et al. (1978) [Schizodus cuneatus? GIRTY,1903, p 439, P1. 9 fig. 10 [not] Schizodus cuneutus Meek 1875, p 336, P1 20, fig i]. Its type specimen is OSU 27359, a shell, and it is not a trace fossil. Its type locality is LIho-4. along the north-south road ~ 0.8 km north of former Fairview School and south of BR 1085, which is in an Atokan coastal shale/limestone in the Pottsville Formation of Ohio.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Schizodus acuminatus Hoare et al. pp. 1031 - 1032 figs. pl. 2 f. 17-18 |
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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.
†Schizodus acuminatus Hoare et al. 1978
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. D. Hoare et al. 1978 | Shell medium-sized, inequilateral, equivalved, subtrigonal; beaks high, incurved, prosogyrate; umbonal areas high and inflated; anterior margin uniformljcurved, not produced; posterior margin sharply truncate, forming an acute angle with the ventral margin; marginal carina strongly developed, separating convex flanks from concave areas; escutcheon lacking.
Suboval anterior adductor scar located at anterior extremity; pallial line complete. Other interior features and surface ornamentation unknown. Measurements of the holotype are: length, 41.1 mm; height, 32.6 mm; thickness, 21.3 mm. |
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Morrowan - Desmoinesian | Brazil | Schizodus acuminatus (67801) | |
| Atokan | USA (Ohio) | Schizodus acuminatus (type locality: 79377) | |
| Virgilian | USA (New Mexico) | Schizodus acuminatus (156699) | |
| Virgilian - Bursumian | USA (Colorado) | Schizodus cuneatus (184118 184119) |