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Fritchaspis

Artiopoda - Harpetida - Harpetidae

Taxonomy
Fritchaspis was named by Vanek (1963). Its type is Harpes montagnei. It was considered monophyletic by Johnson (2024).

It was reranked as Lioharpes (Fritchaspis) by Pribyl and Vanek (1986); it was synonymized subjectively with Lioharpes by Ebach and McNamara (2002).

It was assigned to Lioharpes by Pribyl and Vanek (1986); to Asaphida by Sepkoski (2002); and to Harpetidae by Johnson (2024).

Synonymy list
YearName and author
1963Fritchaspis Vanek
1986Lioharpes (Fritchaspis) Pribyl and Vanek p. 20
2002Fritchaspis Sepkoski
2024Fritchaspis Johnson p. 61

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
RankNameAuthor
phylumArthropodaGravenhorst 1843
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
orderHarpetida(Whittington 1959)
familyHarpetidaeHawle and Corda 1847
genusFritchaspisVanek 1963

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. †Fritchaspis Vanek 1963
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Fritchaspis edgecombei Johnson 2024
Fritchaspis montagnei Hawle and Corda 1847
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Invalid names: Harpes perneri Prantl and Pribyl 1954 [synonym]
Diagnosis
ReferenceDiagnosis
R. G. Johnson 2024Genicranium narrow, length (sag.) between 75% and 85% of width (tr.). Glabella inset and preglabellar furrow bowed upwards in anterior view. No tubercles on occipital ring. Posterior border moderately wide (tr.), between 41% and 50% of width (tr.) of occipital ring. Alar depression present and course of inner margin of fringe across anterior of genal area straight. Genal roll sloping moderately anteriorly (sag.) at between 420 and 500 to horizontal. Brim wide (sag.) >35% of cephalic length (sag.) and steepening to less than vertical on prolongations. Brim width ratio between 0.86 and 0.94. Spaces between brim perforations inflated. Prolongations moderately short (exsag.), between 76% and 85% of cephalic length (sag.).
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: suspension feederf
Vision: limitedf
Created: 2010-02-08 06:44:20
Modified: 2012-08-27 07:28:06
Source: f = family, c = class
References: Aberhan et al. 2004, Whittington et al. 1997

Age range: base of the Lochkovian to the top of the Eifelian or 419.62000 to 387.95000 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Lochkovian419.62 - 413.02Czechia (Prague) Lioharpes ruderalis (12068)
Early/Lower Devonian419.62 - 393.47Czechia (Barrandia) Lioharpes perneri (12183)
Devonian - Eifelian419.62 - 387.95Czechia Harpes perneri (10470)
Pragian413.02 - 410.62Czechia (Prague) Lioharpes ruderalis (12083)
Zlichovian - Daleje410.62 - 393.47Australia (New South Wales) Lioharpes sp. (10181)
Eifelian393.47 - 387.95Czechia (Barrandia) Harpes perneri (12041) Lioharpes montagnei (12040)
Eifelian393.47 - 387.95Germany (Hessen) Lioharpes montagnei (229648)