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Holmitheca quadricostatus
Taxonomy
Hyolithes quadricostatus was named by Shaler and Foerste (1888).
It was recombined as Holmitheca quadricostatus by Malinky (1989).
It was recombined as Holmitheca quadricostatus by Malinky (1989).
Synonymy list
| Year | Name and author |
|---|---|
| 1888 | Hyolithes quadricostatus Shaler and Foerste pp. 31 - 32 figs. pl. 2 f. 15 |
| 1891 | Hyolithes quadricostatus Walcott pp. 621 - 622 figs. Pl . LXXVIII , figs. 1 , la , b |
| 1989 | Holmitheca quadricostatus Malinky pp. 314 - 315 figs. 4.1-4.6, 4.10, 4.13 |
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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.
†Holmitheca quadricostatus Shaler and Foerste 1888
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. M. Malinky 1989 | Holmitheca with median sulcus along longitudinal axis on dorsum; shallow ventral concavity |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Hendy et al. 2009 | |||||