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Echinognathus
Taxonomy
Echinognathus was named by Walcott (1882) [Sepkoski's age data: O Cara-m O Ashg Sepkoski's reference number: 360,1066]. It is not extant.
It was assigned to Eurypterida by Sepkoski (2002); and to Megalograptidae by Størmer (1955), Dunlop et al. (2020), Lamsdell (2025).
It was assigned to Eurypterida by Sepkoski (2002); and to Megalograptidae by Størmer (1955), Dunlop et al. (2020), Lamsdell (2025).
Species
Entered
by J. Sepkoski on 2003-01-23; modified by R. Plotnick on 2019-10-03
Synonymy list
| Year | Name and author |
|---|---|
| 1882 | Echinognathus Walcott |
| 1955 | Echinognathus Størmer p. 36 |
| 2002 | Echinognathus Sepkoski |
| 2020 | Echinognathus Dunlop et al. p. 21 |
| 2025 | Echinognathus Lamsdell |
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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: o = order | |||||
| Reference: Aberhan et al. 2004 | |||||