| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Eognathostomata
Taxonomy
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1984 | Eognathostomata Smith |
| 2018 | Eognathostomata Hagdorn p. 273 |
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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.
Superor. †Eognathostomata Smith 1984
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Or. †Palaechinoidea Haeckel 1866
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Fm. †Palaechinidae M'Coy 1849
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G. †Lovenechinus Jackson 1912
G. †Maccoya Pomel 1869
G. †Oligoporus
G. †Palaechinus
G. †Wrightia
G. †Xysteria Pomel 1883
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum | |||||
| References: Hendy et al. 2009, Kiessling 2004, Aberhan 1992 | |||||
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Homerian - Gorstian | Sweden (Gotland) | Gotlandechinus balticus (13720) | |
| Holkerian | United Kingdom (England) | Palaechinus sp. (41284) | |
| Meramecian | USA (Indiana) | Melonechinus sp. (6699) | |
| Asselian | Greece | Melonechinus dispar (120899) | |
| Asselian | USA (Texas) | Xenechinus parvus (43472) |