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Janius
Taxonomy
Janius was named by Havlicek (1957). Its type is Spirifer nobilis.
It was assigned to Spiriferida by Sepkoski (2002); and to Eospiriferinae by Bassett and Cocks (1974), Jin and Chatterton (1997), Williams et al. (2006).
It was assigned to Spiriferida by Sepkoski (2002); and to Eospiriferinae by Bassett and Cocks (1974), Jin and Chatterton (1997), Williams et al. (2006).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Janius Havlicek |
| 1974 | Janius Bassett and Cocks |
| 1997 | Janius Jin and Chatterton |
| 2002 | Janius Sepkoski |
| 2006 | Janius Williams et al. p. 1696 |
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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. †Janius Havlicek 1957
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†Janius barrandi deVerneuil 1848
†Janius exsul Barrande 1848
†Janius nobilis Barrande 1848
†Janius occidentalis Boucot et al. 1988
†Janius schmidti Lindström 1861
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Hendy 2009, Nesnidal et al. 2013 | |||||
Age range: base of the Sheinwoodian to the top of the Eifelian or 432.90000 to 387.95000 Ma
Collections (44 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sheinwoodian | Czechia | J. nobilis, J. exsul (14096) | |
| Sheinwoodian | USA (Wisconsin) | J. nobilis (13075) | |
| Sheinwoodian | Canada (Nunavut) | J. occidentalis (26003 26009 26013 26014) | |
| Wenlock | China | J. sp. (25760) | |
| Wenlock | Russian Federation | J. exsul (24777) J. nobilis, J. exsul (24749) | |
| Wenlock | USA (California) | J. occidentalis (226732) | |
| Wenlock | Canada (Northwest Territories) | J. exsul (24930) | |
| Wenlock - Leintwardine | Sweden (Gotland) | J. schmidti (192358) | |
| Wenlock - Silurian | USA (Wisconsin) | J. nobilis (13104) | |
| Whitwellian | Canada (Northwest Territories) | J. exsul (26048) J. occidentalis (26035 26042) | |
| Homerian | Czechia | J. exsul (14053) J. nobilis (14055 14065 14098) J. sp. (14054) J. sp., J. nobilis (14101) | |
| Gorstian | Ukraine | J. pyramidalis (23375) | |
| Gorstian | Czechia | J. bouskai (14049 14104) | |
| Gorstian - Ludfordian | Sweden (Gotland) | J. barrandi (13531) | |
| Ludlow | Russian Federation | J. nobilis (23760 23765) | |
| Ludlow | Ukraine | J. barrandei (23357) J. barrandi (23480) | |
| Ludlow | Kazakhstan | J. exsul (23754) | |
| Ludfordian | Sweden | J. sp. (24867) | |
| Ludfordian | Ukraine (Podolia) | J. barrandi (229365) | |
| Ludfordian | Sweden (Gotland) | J. barrandi (13532) | |
| Lochkovian | Russian Federation | J. nobilis (24741) | |
| Lochkovian - Pragian | Russian Federation (Nenets) | J. sergaensis (81605) | |
| Lochkovian - Pragian | Russian Federation | J. sp. (24737) | |
| Pragian | Tajikistan | J. irbitensis (13985) | |
| Pragian | Russian Federation (Sverdlovskaya Oblast) | J. ignobilis, J. sergaensis (81750) | |
| Pragian - Early/Lower Emsian | Russian Federation (Sverdlovskaya Oblast) | J. irbitensis (81797) J. sergaensis (81794) | |
| Early/Lower Emsian | Canada (Yukon Territory) | J. sergaensis (26658) | |
| Late/Upper Emsian | USA (Alaska) | J. sp., J. velatus (3948) | |
| Eifelian | Russian Federation (Nenets) | J. sergaensis (81606) |