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Taxonomy
Acanthocrania densispina was named by Cooper and Grant (1974). Its type specimen is USNM 151434b, a valve, and it is a 3D body fossil. Its type locality is USNM702c, Old Word Ranch, Glass Mountains, which is in a Kungurian slope/ramp reef limestone in the Road Canyon Formation of Texas.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Acanthocrania densispina Cooper and Grant pp. 242-243 figs. Pl 27, figs 12-18 |
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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.
†Acanthocrania densispina Cooper and Grant 1974
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 3 | 3.51 | 2.80 | 4.70 | 3.30 | 0.985 |
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| Source: g = genus, o = order, c = class, p = phylum | |||||
| References: Williams et al. 1996, Hendy 2009, Aberhan et al. 2004 | |||||