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Micragnostus curvata

Agnostida - Agnostidae

Taxonomy
Geragnostus curvata was named by Robison and Pantoja-Alor (1968). Its type specimen is USNM 158875, a cephalon/head, and it is not a trace fossil.

It was recombined as Micragnostus curvata by Ergaliev and Ergaliev (2008).

Sister species lacking formal opinion data
M. languedocensis

Synonymy list
YearName and author
1968Geragnostus curvata Robison and Pantoja-Alor p. 775
2008Micragnostus curvata Ergaliev and Ergaliev

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
orderAgnostidaSalter 1864
suborderAgnostinaSalter 1864
superfamilyCondylopygoideaRaymond 1913
familyAgnostidaeM'Coy 1849
genusMicragnostusHowell 1935
speciescurvata()

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.

†Micragnostus curvata Robison and Pantoja-Alor 1968
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 1.0 to < 10g
Folds: noneg
Ribbing: noneg
Spines: noneg
Internal reinforcement: noneg
Locomotion: slow-movingo
Life habit: epifaunalo
Diet: detritivoreo
Vision: blindf
Created: 2009-06-08 08:43:37
Modified: 2009-06-08 10:43:37
Source: g = genus, f = family, o = order
References: Kiessling 2004, Hendy 2009

Age range: base of the Aksaian to the top of the Tremadoc or 492.80000 to 477.10000 Ma

Collections (15 total)


Time interval Ma Country or state Original ID and collection number
Aksaian492.8 - 491.5Kazakhstan Micragnostus curvata (118481 118486 118487 118488 118872 118878 118880 118881 118883 118884 118885)
Tremadoc486.4 - 477.1Mexico (Oaxaca) Geragnostus curvata (9831 9832 9833 9834)