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Platycystitinae
Taxonomy
Platycystitinae was named by Parsley and Mintz (1975).
It was assigned to Platycystitidae by Frest et al. (1979).
It was assigned to Platycystitidae by Frest et al. (1979).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Platycystitinae Parsley and Mintz |
| 1979 | Platycystitinae Frest et al. p. 387 |
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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.
Subfm. †Platycystitinae Parsley and Mintz 1975
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G. †Globulocystites Frest et al. 1979
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†Globulocystites infundus Frest 1977
†Globulocystites rotundatus Frest et al. 1979
G. †Platycystites Miller 1889
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†Platycystites cristatus Bassler 1943
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Invalid names: Platycystites bromidensis Bassler 1943 [synonym], Platycystites fimbriatus Bassler 1943 [synonym]
†Platycystites faberi Miller 1889
†Platycystites levatus Bassler 1943
†Platycystites ovalis Frest et al. 1979
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| T. J. Frest et al. 1979 | Platycystitidae lacking an am- bulacral platform and orals, with long, recumbent (dominantly epithecal) arms and distinct thecal faces. |
Measurements
No measurements are available
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| Source: c = class, p = phylum | |||||
| References: Aberhan et al. 2004, Aberhan 1992 | |||||
Age range: base of the Middle Ordovician to the top of the Ashbyan or 471.30000 to 449.60000 Ma
Collections (14 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Ordovician | USA (Kentucky) | Globulocystites sp. (124619) | |
| Caradoc | USA (Tennessee) | Platycystites faberi (197204 197206 197207) | |
| Ashbyan | USA (Virginia) | Globulocystites rotundatus (196809) Globulocystites rotundatus, Platycystites faberi (164380) Platycystites faberi (197208) | |
| Ashbyan - Blackriveran | USA (Tennessee) | Platycystites faberi (197205) | |
| Blackriveran | USA (Oklahoma) | Platycystites sp. (24101 24102 24103 24104) Platycystites sp., Platycystites bassleri, Globulocystites cristatus, Platycystites levatus, Platycystites fimbriatus, Platycystites bromidensis (23990) Platycystites sp., Platycystites faberi, Platycystites infundus, Globulocystites infundus (24095) |