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Parillaenus fallax

Trilobita - Corynexochida - Illaenidae

Taxonomy
Illaenus fallax was named by Holm (1882).

It was recombined as Parillaenus fallax by Jaanusson (1954); it was recombined as Illaenus (Parillaenus) fallax by Owen and Clarkson (1992).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1866Illaenus limbatus Linnarsson
1882Illaenus fallax Holm
1954Parillaenus fallax Jaanusson
1992Illaenus (Parillaenus) fallax Owen and Clarkson p. 9

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderCorynexochida
familyIllaenidaeHawle and Corda 1847
genusParillaenusJaanusson 1954
speciesfallax(Holm 1882)

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.

Parillaenus fallax Holm 1882
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Invalid names: Illaenus limbatus Linnarsson 1866 [synonym]
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: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Created: 2009-06-11 18:00:52
Modified: 2009-06-11 20:00:52
Source: f = family, o = order, c = class
References: Aberhan et al. 2004, Hendy et al. 2009, Hendy 2009

Age range: base of the Keila to the top of the Rawtheyan or 453.90000 to 445.20000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Keila - Oandu453.9 - 451.8Sweden Illaenus fallax (161776)
Keila - Oandu453.9 - 451.8Sweden (Dalarna) Illaenus fallax (155566)
Keila - Oandu453.9 - 451.8Sweden (Dalarne) Illaenus fallax (73411 73855 161744)
Oandu - Keila452.8 - 452.8Sweden Illaenus fallax (161777)
Rawtheyan448.8 - 445.2United Kingdom (Wales) Parillaenus fallax (196867)