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Quadrithyrina
Taxonomy
Quadrithyrina was named by Havlicek (1959) [Sepkoski's age data: D Eife Sepkoski's reference number: 25]. It is not extant.
It was assigned to Spiriferida by Sepkoski (2002); and to Bojothyridinae by Williams et al. (2006).
It was assigned to Spiriferida by Sepkoski (2002); and to Bojothyridinae by Williams et al. (2006).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1959 | Quadrithyrina Havlicek |
| 2002 | Quadrithyrina Sepkoski |
| 2006 | Quadrithyrina Williams et al. p. 1862 |
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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.
G. †Quadrithyrina Havlicek 1959
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Lochkovian to the top of the Early/Lower Emsian or 419.62000 to 399.50000 Ma
Collections (27 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lochkovian | China (Guangxi) | Q. expansa (12922) Q. typica (12923 41058 115005) | |
| Lochkovian | Australia (New South Wales) | Q. sp. (25705) | |
| Lochkovian | Russian Federation (Sverdlovskaya Oblast) | Q. losvensis (81792) | |
| Lochkovian | Uzbekistan | Q. parvula, Q. crassa (106712) | |
| Lochkovian - Pragian | Russian Federation | Q. sp. (24737) | |
| Lochkovian - Pragian | Russian Federation (Nenets) | Q. losvensis (81605) | |
| Early/Lower Devonian | Czech Republic (Barrandia) | Q. ivanovae (12183) | |
| Pragian | Russian Federation (Sverdlovskaya Oblast) | Q. losvensis (81793) Q. losvensis, Q. tenuisinuosus (81750) | |
| Pragian | China (Guangxi) | Q. typica (12930) | |
| Pragian | Uzbekistan | Q. parvula, Q. crassa (106713) | |
| Pragian - Early/Lower Emsian | Russian Federation (Sverdlovskaya Oblast) | Q. losvensis (81794) | |
| Early/Lower Emsian | Australia (Queensland) | Q. sp. (39874 39875 39876 39877 39878 39879) | |
| Early/Lower Emsian | Czech Republic (Praha) | Q. ivanovae (5804) | |
| Emsian | Australia (New South Wales) | Q. sp. (39884 39887 39889) | |
| Emsian | Czech Republic | Q. ivanovae (5783 5800) |