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Esmeraldacaris richardsonae
Taxonomy
Esmeraldacaris richardsonae was named by Waggoner (2003). Its type specimen is USNM 520698 and is a 3D body fossil. Its type locality is USNM loc,. 42038, Silver Peak Range, which is in an Ordovician offshore shelf limestone/siltstone in the Emigrant Formation of Nevada. It is the type species of Esmeraldacaris.
Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Esmeraldacaris richardsonae Waggoner pp. 715 - 719 figs. Figures 6.1–6.5, 7, 8.1–8.2 |
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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.
†Esmeraldacaris richardsonae Waggoner 2003
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B. Waggoner 2003 | Arthropods with triangular head shield with dou- blure, trapezoidal tail shield of size and proportions equal to head shield, up to seven segments with posteriormost free segment shorter than others, ventral cuticle equally sclerotized as dorsal. |
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range: Early/Lower Ordovician or 485.40000 to 470.00000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Ordovician | USA (Nevada) | Esmeraldacaris richardsonae (type locality: 204004 205327 205328) |