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Eleutherocentrus
Taxonomy
Eleutherocentrus was named by Clark (1935) [Sepkoski's age data: O Aren-u Sepkoski's reference number: 795]. Its type is Eleutherocentrus petersoni.
It was assigned to Trilobita by Clark (1935); to Proetida by Sepkoski (2002); and to Bathyuridae by Jell and Adrain (2002).
It was assigned to Trilobita by Clark (1935); to Proetida by Sepkoski (2002); and to Bathyuridae by Jell and Adrain (2002).
Species
E. petersoni (type species)
Synonymy list
Year | Name and author |
---|---|
1935 | Eleutherocentrus Clark p. 243 |
2002 | Eleutherocentrus Jell and Adrain p. 370 |
2002 | Eleutherocentrus Sepkoski |
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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.
Diagnosis
Reference | Diagnosis | |
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T. H. Clark 1935 | An ogygiocarinid with glabella long, devoid of furrows; axial lobe of pygidium produced backwards into a spine free from the posterior margin |
Measurements
No measurements are available
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Source: f = family, o = order, c = class | |||||
References: Fortey and Owens 1999, Whittington et al. 1997, Aberhan et al. 2004 |
Age range: base of the Blackhillsian to the top of the Dapingian or 474.90000 to 467.30000 Ma
Collections (22 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Blackhillsian | USA (Utah) | E. sp. (295) | |
Rangerian | USA (Utah) | E. sp. (104189 104191) | |
Dapingian | USA (Utah) | E. petersoni (104211 104227) E. sp. (104204 104212 104213 104214 104218 104221 104223) | |
Chazyan | USA (Utah) | E. petersoni (103781 103828 103909 103914 103915) | |
Whiterockian | USA (Utah) | E. petersoni (298 104064 197008) E. sp. (104241 104256) |