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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Tetragonocrinida
Taxonomy
Tetragonocrinida was named by Ausich (1998). It is not extant.
It was assigned to Disparida by Ausich (1998); and to Disparida by Wright et al. (2017).
It was assigned to Disparida by Ausich (1998); and to Disparida by Wright et al. (2017).
Synonymy list
| Year | Name and author |
|---|---|
| 1998 | Tetragonocrinida Ausich p. 17 |
| 2017 | Tetragonocrinida Wright et al. p. 842 |
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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.
Or. †Tetragonocrinida Ausich 1998
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Fm. †Tetragonocrinidae Stukalina 1980
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G. †Ramseyocrinus Bates 1968
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†Ramseyocrinus argentinus Guensburg and Waisfeld 2015
†Ramseyocrinus cambriensis Hicks 1873
†Ramseyocrinus vizcainoi Ubaghs 1983
G. †Tetragonocrinus Yeltyscheva 1964
Invalid names: Ramseyocrinidae Donovan 1984 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subc = subclass, c = class, p = phylum | |||||
| References: Kiessling 2004, Aberhan 1992, Aberhan et al. 2004 | |||||
Age range: base of the Whitlandian to the top of the Oretanian or 473.80000 to 461.00000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Floian | Argentina | Ramseyocrinus argentinus (179575) | |
| Floian | Morocco | Ramseyocrinus sp. (235491) | |
| Arenig | United Kingdom (Wales) | Ramseyocrinus sp. (426) | |
| Whitlandian | United Kingdom | Dendrocrinus cambriensis (166616 166617) | |
| Whitlandian | United Kingdom (Wales) | Ramseyocrinus cambriensis (3713 3714 166753) | |
| Oretanian | Spain (Toledo) | Ramseyocrinus sp. (20898) |