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Jeffersonia timon

Trilobita - Proetida - Bathyuridae

Bathyurus timon was named by Billings (1865). Its type specimen is GSC 636, a pygidium, and it is a 3D body fossil.

It was recombined as Bathyurina timon by Fortey (1979); it was recombined as Jeffersonia timon by Boyce (1989).

Synonymy list
YearName and author
1979Bathyurina timon Fortey p. 76 figs. Pl. 25, fig. 3, 5
1989Jeffersonia timon Boyce p. 51

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
familyBathyuridaeWalcott 1886
subfamilyBathyurinaeWalcott 1886
genusJeffersoniaPoulson 1927
speciestimon(Billings 1865)

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.

Jeffersonia timon Billings 1865
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No diagnoses are available
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: deposit feedero
Vision: well-developedf
Created: 2009-12-19 02:31:34
Modified: 2009-12-19 04:31:34
Source: f = family, o = order, c = class
References: Whittington et al. 1997, Fortey and Owens 1999, Aberhan et al. 2004

Age range: base of the Arenig to the top of the Blackhillsian or 478.60000 to 470.00000 Ma

Collections (22 total)

Time interval Ma Country or state Original ID and collection number
Cassinian482.3 - 470.0Canada (Newfoundland) Jeffersonia timon (195757 195758 195782 195783 195784)
Cassinian482.3 - 470.0Canada (Newfoundland and Labrador) Bathyurina timon (103540) Jeffersonia timon (69196 106239 106240 106241 133127 133128 133134 133140)
Cassinian482.3 - 470.0Canada (Quebec) Jeffersonia timon (50062)
Tulean480.8 - 474.9Norway (Spitsbergen) Jeffersonia timon (189837)
Tulean480.8 - 474.9Canada (Newfoundland) Bathyurus timon (195769)
Tulean - Blackhillsian480.8 - 470.0Canada (Newfoundland) Bathyurina timon, Jeffersonia timon (196380) Bathyurus timon (195770)
Tulean - Blackhillsian480.8 - 470.0Canada (Newfoundland and Labrador) Jeffersonia timon (195776)
Arenig478.6 - 466.0Greenland Jeffersonia timon (221131)
Blackhillsian474.9 - 470.0Norway (Spitsbergen) Jeffersonia timon (189838)