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Dokimocephalus intermedius

Artiopoda - Olenida - Dokimokephalidae

Taxonomy
Burnetia intermedia was named by Resser (1942). Its type specimen is USNM 108805, a cephalon/head (cranidium), and it is a 3D body fossil.

It was recombined as Dokimocephalus intermedia by Frederickson (1948); it was recombined as Dokimocephalus intermedius by Stitt (1971), Westrop et al. (2010).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1942Burnetia intermedia Resser p. 80 figs. pl. 17, fig. 10,11
1942Burnetia extensa Resser p. 81 figs. pl. 17, fig. 15-18, 20
1942Burnetia lingula Resser p. 82 figs. p. 17, fig. 32,33
1948Dokimocephalus intermedia Frederickson p. 801
1971Dokimocephalus intermedius Stitt pp. 18 - 19 figs. PI. 1, fig. 7
2010Dokimocephalus intermedius Westrop et al. pp. 557 - 559 figs. 6, 7

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
orderOlenida
familyDokimokephalidae(Kobayashi 1935)
genusDokimocephalusWalcott 1924
speciesintermedius(Resser 1942)

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.

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Invalid names: Burnetia extensa Resser 1942 [synonym], Burnetia lingula Resser 1942 [synonym]
Diagnosis
ReferenceDiagnosis
S. R. Westrop et al. 2010Long, wide, gently tapered, tongue-shaped anterior border that occupies 33% (31–34) of cranidial length in larger holaspids; border length of larger holaspids is 48% (46–51) of maximum border width. Preglabellar field long in larger holaspids (e.g. Fig. 6A–C, G–I), equal to 14% (13–16) of preoccipital glabellar length but somewhat shorter in smallest cranidia (e.g. Fig. 7H–J), equal to 12% of preoccipital glabellar length. Occipital ring with stout spine that curves upward and backward.
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: carnivorec
Vision: well-developedf
Created: 2009-12-19 03:59:19
Modified: 2009-12-19 05:59:19
Source: f = family, c = class
References: Aberhan et al. 2004, Whittington et al. 1997

Age range: base of the Steptoean to the top of the Sunwaptan or 497.00000 to 488.90000 Ma

Collections (19 total)


Time interval Ma Country or state Original ID and collection number
Steptoean497.0 - 493.5USA (Pennsylvania) Dokimocephalus intermedius (156674)
Furongian497.0 - 486.85USA (Oklahoma) Dokimocephalus intermedia (229123 229125)
Furongian497.0 - 486.85USA (Texas) Dokimocephalus intermedius (156262 156264 156269 156270 156283 156284 156285 156312 156335 156340 156342 156348 156351 156352)
Sunwaptan493.5 - 488.9USA (Oklahoma) Dokimocephalus intermedius (240516 240517)