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Isalaux

Trilobita - Phacopida - Pterygometopidae

Taxonomy
Isalaux was named by Frederickson and Pollack (1952) [Sepkoski's age data: O Cara-m Sepkoski's reference number: 795]. Its type is Isalaux canyonensis.

It was assigned to Pterygometopinae by Frederickson and Pollack (1952); to Pterygometopidae by Jell and Adrain (2002); and to Phacopida by Sepkoski (2002).

Species
I. canyonensis (type species)

Synonymy list
YearName and author
1952Isalaux Frederickson and Pollack
2002Isalaux Jell and Adrain p. 388
2002Isalaux Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderPhacopinaStruve 1959
superfamilyPhacopoideaHupe 1953
familyPterygometopidaeReed 1905
subfamilyPterygometopinaeReed 1905
genusIsalaux

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. †Isalaux Frederickson and Pollack 1952
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†Isalaux canyonensis Frederickson and Pollack 1952
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivoresubo
Vision: well-developedf
Created: 2009-06-11 18:42:15
Modified: 2009-12-19 04:28:20
Source: f = family, subo = suborder, c = class
References: Hendy 2009, Aberhan et al. 2004, Fortey and Owens 1999

Age range: base of the Late/Upper Llandeilo to the top of the Haljala or 461.10000 to 453.90000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Llandeilo466.0 - 460.9Russian Federation (Siberia) I. sp. (9300 9301)
Late/Upper Llanvirn463.5 - 460.9Russian Federation (Siberia) I. sp. (9224)
Late/Upper Llandeilo461.1 - 458.4Russian Federation (Siberia) I. sp. (9304)
Caradoc458.4 - 449.5USA (Colorado) I. canyonensis (10380 10391)
Haljala456.8 - 453.9Russian Federation (Krasnoyarsk) I. stricta (204669)