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Euhydrodiskos diktyotos
Taxonomy
Euhydrodiskos diktyotos was named by Guensburg (1988). Its type specimen is PE40136, a test, and it is a 3D body fossil. Its type locality is North end of Orchard Creek Exposure, 1.6 km north of Thebes, which is in a Richmondian shallow subtidal limestone/shale in the Orchard Creek Shale Formation of Illinois. It is the type species of Euhydrodiskos.
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Euhydrodiskos diktyotos Guensburg pp. 123 - 124 figs. 4, 8.5, 13-16 |
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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.
†Euhydrodiskos diktyotos Guensburg 1988
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. E. Guensburg 1988 | Lebetodiscidae with high domal theca, ambulacra strongly curved, I-IV contrasolar, V apparently solar; oral region transversely wide, includes several secondary orals; large hydropore coverplate separates posterior oral from the hydropore oral; hydropore structure large, forming prominent rise in right posterior oral area; anal area a periproct; peripheral rim proximal circlet comprised of large, thick, laterally overlapping plates. |