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Kathwaia

Artiopoda - Proetida - Phillipsiidae

Taxonomy
Kathwaia was named by Grant (1966) [Sepkoski's age data: P Guad-u P Djhu Sepkoski's reference number: 624].

It was assigned to Trilobita by Grant (1966); to Proetidae by Jell and Adrain (2002); to Proetida by Sepkoski (2002); and to Bollandiinae by Owens (2003), Mychko (2025).

Synonymy list
YearName and author
1966Kathwaia Grant p. 69
2002Kathwaia Jell and Adrain p. 391
2002Kathwaia Sepkoski
2003Kathwaia Owens p. 380
2025Kathwaia Mychko p. 15

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
superfamilyProetoideaHawle and Corda 1847
familyPhillipsiidaeOehlert 1886
subfamilyBollandiinaeHahn and Brauckmann 1988
genusKathwaia

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. †Kathwaia Grant 1966
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†Kathwaia caucasica Weber 1944
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Invalid names: Kathwaia capitorosa Grant 1966 [synonym]
†Kathwaia girtyi Tumanskaya 1935
Diagnosis
ReferenceDiagnosis
R. E. Grant 1966Cephalon semicircular in outline, genal spines absent. Glabella inflated, protruding anterior to border, with two small but prominent lateral pre-occipital lobes. Eyes small, near mid-length of cephalon. Thorax with nine segments. Pygidium short, with border but no border furrow. Ornamentation granular, present on all parts but strongest on cephalon.
Measurements
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 02:34:58
Modified: 2009-12-19 04:34:58
Source: f = family, o = order, c = class
References: Aberhan et al. 2004, Fortey and Owens 1999, Whittington et al. 1997

Age range: base of the Asselian to the top of the Changhsingian or 298.90000 to 251.90200 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Asselian298.9 - 293.52Greece K. sp. (120899)
Roadian274.4 - 266.9Ukraine Proetus girtyi (119279)
Wuchiapingian259.51 - 254.14Pakistan (Punjab) K. capitorosa (42894)
Changhsingian254.14 - 251.902Russian Federation K. caucasica (127904 240905) Proetus girtyi (240906)