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Ptychagnostus affinis

Agnostida - Ptychagnostidae

Taxonomy
Agnostus affinis was named by Brøgger (1878).

It was recombined as Ptychagnostus (Ptychagnostus) affinis by Westrop et al. (1996); it was recombined as Ptychagnostus affinis by Peng and Robison (2000); it was recombined as Ptychagnostus affinis by Peng and Robison (2000).

Synonymy list
YearName and author
1878Agnostus affinis Brøgger
1996Ptychagnostus (Ptychagnostus) affinis Westrop et al. p. 808
2000Ptychagnostus affinis Peng and Robison

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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
familyPtychagnostidaeKobayashi 1939
genusPtychagnostusJaekel 1909
speciesaffinis(Brøgger 1878)

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.

†Ptychagnostus affinis Brøgger 1878
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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
Spines: noneg
Locomotion: actively mobileg
Life habit: nektonicg
Diet: suspension feederg
Vision: blindf
Created: 2009-02-25 10:09:12
Modified: 2009-09-21 22:37:40
Source: g = genus, f = family
Reference: Hendy 2009

Age range: base of the Tuesaian to the top of the Zhanaarykian or 505.30000 to 500.50000 Ma

Collections (14 total)


Time interval Ma Country or state Original ID and collection number
Taijangian506.5 - 504.5China (Hunan) Ptychagnostus affinis (49154 49155 49268)
Middle Cambrian506.5 - 497.0Greenland Ptychagnostus affinis (10484)
Tuesaian505.3 - 503.0Kazakhstan Ptychagnostus affinis (9969 118091 118092 118093)
Drumian504.5 - 500.5Sweden (Jämtland) Ptychagnostus affinis (240065 240066)
Drumian504.5 - 500.5USA (Utah) Ptychagnostus affinis (230679)
Menevian504.5 - 499.5Sweden (Scania) Ptychagnostus affinis (179691)
Undillan503.0 - 500.5Australia (Queensland) Ptychagnostus affinis (225237)
Zhanaarykian503.0 - 500.5Kazakhstan Ptychagnostus affinis (118095)