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

Aotagnostus

Agnostida - Ptychagnostidae

Taxonomy
Aotagnostus was named by Opik (1979) [Sepkoski's age data: Cm uMid-m Cm uMid-u]. It is not extant.

It was reranked as Triplagnostus (Aotagnostus) by Laurie (1988); it was synonymized subjectively with Ptychagnostus by Jell and Adrain (2002).

It was assigned to Triplagnostus by Laurie (1988); to Agnostida by Sepkoski (2002); and to Ptychagnostidae by Naimark and Pegel (2017).

Synonymy list
YearName and author
1979Aotagnostus Opik
1988Triplagnostus (Aotagnostus) Laurie pp. 200 - 202
2002Aotagnostus Sepkoski
2017Aotagnostus Naimark and Pegel p. 1180

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

RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
orderAgnostidaSalter 1864
suborderAgnostinaSalter 1864
superfamilyCondylopygoideaRaymond 1913
familyPtychagnostidaeKobayashi 1939
genusAotagnostusOpik 1979

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. †Aotagnostus Opik 1979
show all | hide all
†Aotagnostus aotus Öpik 1979
†Aotagnostus culminosus Öpik 1979
hide
Invalid names: Aotagnostus protentus Öpik 1979 [synonym]
†Aotagnostus lundgreni Tullberg 1880
hide
Invalid names: Triplagnostus longitriangularis Lin 1991 [synonym]
†Aotagnostus magniceps Öpik 1979
†Aotagnostus minutus Lu and Lin 1989
Diagnosis
ReferenceDiagnosis
E. B. Naimark and T. V. Pegel 2017Cephalon with median preglabellar furrow. Posterior glabellar lobe inflated and widened= across M1 (approximately at the middle of M1). Basal= lobes elongated. Pygidium with narrow border, spines small or absent. Axis with equally developed F1 and F2 or F2 weak; large median node strongly deflecting F2; F1 bent forwards; posteroaxis and M2 inflated. Postaxial furrow well developed in adults.
Measurements
No measurements are available
Entire body: yesf
Adult length: 1.0 to < 10f
Adult width: 1.0 to < 10f
Locomotion: slow-movingo
Life habit: epifaunalo
Diet: detritivoreo
Vision: blindf
Created: 2009-06-11 18:42:48
Modified: 2009-12-13 04:44:17
Source: f = family, o = order
References: Kiessling 2004, Hendy 2009

Age range: base of the Floran to the top of the Undillan or 504.50000 to 500.50000 Ma

Collections (24 total)


Time interval Ma Country or state Original ID and collection number
Floran504.5 - 503.0Australia (Queensland) A. aotus (225225)
Drumian504.5 - 500.5USA (Utah) Pseudophalacroma lundgreni (230679)
Floran - Undillan504.5 - 500.5Australia (Queensland) A. aotus (225217)
Menevian504.5 - 499.5Sweden (Scania) Ptychagnostus lundgreni (225250)
Marjumian504.5 - 497.0USA (Utah) Lejopyge lundgreni (225249)
Wangcunian504.5 - 497.0China (Hunan) Pseudophalacroma lundgreni (49283 49284) Triplagnostus longitriangularis (128921)
Wangcunian - Guzhangian504.5 - 497.0China (Zhejiang) A. minutus (125535 125541)
Undillan503.0 - 500.5Australia (Queensland) A. aotus (225216 225218 225246) A. culminosus (225219 225220 225237) A. culminosus, A. protentus (225221 225222) A. magniceps (225223) A. ponebrevis (225229) A. protentus (225242 225243 225245)
Undillan503.0 - 500.5Australia (Northern Territory) A. culminosus (225215)