| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Esmeraldina elliptica
Taxonomy
Esmeraldina elliptica was named by Hollingsworth (2006). Its type specimen is USNM 520981, an exoskeleton (half of nearly complete exoskeleton), and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 2006 | Esmeraldina elliptica Hollingsworth p. 322 figs. Figures 10.4, 11.5–11.8 |
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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.
†Esmeraldina elliptica Hollingsworth 2006
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. S. Hollingsworth 2006 | Cephalon with strongly advanced genal spines, and a small node on L0. Thorax narrow, widest at T5. |
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Whittington et al. 1997, Hendy et al. 2009 | |||||
Age range: Montezuman or 520.00000 to 515.30000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Montezuman | USA (Nevada) | Esmeraldina elliptica (140522 140533 140534 140537) |