Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Microryctocara

Artiopoda - Corynexochida - Oryctocephalidae

Species
M. nevadensis (type species)
Entered
by B. Brenneis (authorized by W. Kiessling) on 2007-02-26; modified by J. Marcot on 2019-10-03

Synonymy list
YearName and author
1997Microryctocara Sundberg and McCollum pp. 1084 -1085
2002Microryctocara Jell and Adrain p. 407
2003Microryctocara Sundberg and McCollum p. 345

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
orderCorynexochida
suborderCorynexochinaKobayashi 1935
familyOryctocephalidaeBeecher 1897
subfamilyOryctocarinaeHupé 1953
genusMicroryctocara

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. †Microryctocara Sundberg and McCollum 1997
show all | hide all
Microryctocara nevadensis Sundberg and McCollum 1997
Diagnosis
ReferenceDiagnosis
F. A. Sundberg and L. B. McCollum 1997Isopygous with cranidium subpentagonal, gla­ bella medially expanded without medial anterior sulcus, only S1 lateral glabellar furrow extending to axial furrow, SI and S2 transglabellar furrows, sinuous axial furrows; basal lobes on LI; fixigena narrow, tapering, posterior area sharply terminated; pal­ pebral lobes long; surface granular; opisthoparian sutures. Five thoracic segments with pleural bands of uniform length (exsag.), bluntly terminated. Pygidium semicircular, without marginal spines; axis narrow, 4 axial rings; 5 pleural and interpleural fur­ rows, each pleura equally divided in anterior and posterior bands; pygidial border moderately well defined.
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Vision: well-developedf
Created: 2009-12-14 23:31:52
Modified: 2009-12-15 01:31:52
Source: f = family, o = order, c = class
References: Aberhan et al. 2004, Whittington et al. 1997, Hendy et al. 2009

Age range: Delamaran or 509.70000 to 505.30000 Ma

Collections (12 total)


Time interval Ma Country or state Original ID and collection number
Delamaran509.7 - 505.3USA (Nevada) M. nevadensis (10588 69449 69451 69452 69453 69454 69455 69488 69489 205002)
Delamaran509.7 - 505.3USA (California) M. nevadensis (69516 205005)