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Trochocyathus oregonensis
Taxonomy
Trochocyathus oregonensis was named by Nomland (1916). It is not extant. Its type locality is UCMP loc. A-169, 49-Mine, near Phoenix, which is in a Turonian marine horizon in the Hornbrook Formation of Oregon.
Sister species lacking formal opinion data
T. affinis, T. angustibasis, T. burnesi, T. concinnus, T. conoides, T. cornutus, T. cyclolitoides, T. fuchsi, T. gajensis, T. gibberus, T. giganteus, T. gigas, T. gracilis, T. irregularis, T. magnevillianus, T. meridionalis, T. montgomeriensis, T. multispinosus, T. nummiformis, T. nummuliticus, T. plicatus, T. ponderosus, T. pyramidatus, T. rawsoni, T. sinuosus, T. victoriae, T. virgatus, T. armatus, T. durhami, T. diversiformis, T. crassicostatus, T. elongatus
Synonymy list
| Year | Name and author |
|---|---|
| 1916 | Trochocyathus oregonensis Nomland |
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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.
†Trochocyathus oregonensis Nomland 1916
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range: Late/Upper Turonian or 93.90000 to 89.80000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Turonian | USA (Oregon) | Trochocyathus oregonensis (type locality: 122297) |