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Microryctocara
Taxonomy
Microryctocara was named by Sundberg and McCollum (1997). Its type is Microryctocara nevadensis.
It was assigned to Oryctocephalidae by Jell and Adrain (2002); and to Oryctocarinae by Sundberg and McCollum (1997), Sundberg and McCollum (2003).
It was assigned to Oryctocephalidae by Jell and Adrain (2002); and to Oryctocarinae by Sundberg and McCollum (1997), Sundberg and McCollum (2003).
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
| Year | Name and author |
|---|---|
| 1997 | Microryctocara Sundberg and McCollum pp. 1084 -1085 |
| 2002 | Microryctocara Jell and Adrain p. 407 |
| 2003 | Microryctocara Sundberg and McCollum p. 345 |
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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
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†Microryctocara nevadensis Sundberg and McCollum 1997
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg and L. B. McCollum 1997 | Isopygous 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
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| 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 |
|---|---|---|---|
| Delamaran | USA (Nevada) | M. nevadensis (10588 69449 69451 69452 69453 69454 69455 69488 69489 205002) | |
| Delamaran | USA (California) | M. nevadensis (69516 205005) |