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Crotalocephalus silverdalensis

Trilobita - Phacopida - Cheiruridae

Taxonomy
Crotalocephalus silverdalensis was named by Etheridge and Mitchell (1917).

It was recombined as Cheirurus (Crotalocephalus) silverdalensis by Philip (1962).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1917Crotalocephalus silverdalensis Etheridge and Mitchell
1962Cheirurus (Crotalocephalus) silverdalensis Philip
2020Crotalocephalus silverdalensis Lemke p. 445

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyCheiruridaeHawle and Corda 1847
genusCrotalocephalusBeyrich 1845
speciessilverdalensisEtheridge and Mitchell 1917

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.

Crotalocephalus silverdalensis Etheridge and Mitchell 1917
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Spines: majorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivoref
Vision: well-developedg
Created: 2010-01-13 03:58:38
Modified: 2010-01-13 05:58:38
Source: g = genus, f = family, c = class
References: Whittington et al. 1997, Aberhan et al. 2004, Harrington et al. 1959, Hendy 2009

Age range: base of the Gorstian to the top of the Lochkovian or 427.40000 to 410.80000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Silurian443.8 - 419.2Australia (Victoria) Cheirurus silverdalensis (10187 10191 10192 10193)
Gorstian427.4 - 425.6Australia (Australian Capital Territory) Crotalocephalus silverdalensis (25639)
Ludfordian425.6 - 423.0Australia (New South Wales) Crotalocephalus silverdalensis (25634)
Ludfordian425.6 - 423.0Australia (Australian Capital Territory) Crotalocephalus silverdalensis (25677)
Pridoli - Helderbergian423.0 - 393.3Australia (New South Wales) Crotalocephalus silverdalensis (24903)
Lochkovian419.2 - 410.8Australia (New South Wales) Crotalocephalus silverdalensis (24907)