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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Phyllonaspis
Taxonomy
Phyllonaspis was named by Elliott (2016). Its type is Phyllonaspis laevis.
It was assigned to Boothiaspidinae by Elliott (2016).
It was assigned to Boothiaspidinae by Elliott (2016).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2016 | Phyllonaspis Elliott p. 1213 |
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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.
G. †Phyllonaspis Elliott 2016
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†Phyllonaspis laevis Elliott 2016
†Phyllonaspis serratus Elliott 2016
†Phyllonaspis taphensis Elliott 2016
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| D. K. Elliott 2016 | Medium-sized cyathaspid with no epitega; flattened, oval to quadrangular dorsal shield and convex ventral shield. Narrow, downwardly directed lateral laminae are separated from the rest of the dorsal shield by narrow lateral brims that are serrated posteriorly in some species. No median rostral process. Ornament of very fine (8–10 per mm), flat-topped ridges; generally longitudinal on dorsal shield, but forming whorls laterally against a lateral band of coarser ridges (6–7 per mm). Single median oral plate is keystone shaped. |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| Reference: Kiessling 2004 | |||||
Age range: Late/Upper Emsian or 402.50000 to 391.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Emsian | USA (California) | P. taphensis (206449) |