| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Elfridia
Taxonomy
Elfridia was named by Thayer (1985). It is not extant.
It was assigned to Gymnarthridae by Thayer (1985), Carroll (1988), Carroll et al. (1998).
It was assigned to Gymnarthridae by Thayer (1985), Carroll (1988), Carroll et al. (1998).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1985 | Elfridia Thayer p. 690 fig. 5 |
| 1988 | Elfridia Carroll |
| 1998 | Elfridia Carroll et al. p. 5 |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, p = phylum, uc = unranked clade | |||||
| References: Bambach et al. 2007, Hendy et al. 2009, Kiessling 2004, Carroll 1988 | |||||
Age range: base of the Westphalian A to the top of the Westphalian B or 318.70000 to 314.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Westphalian A - Westphalian B | USA (Arizona) | E. bulbidens (92271) |