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Ptychagnostus intermedius

Agnostida - Ptychagnostidae

Taxonomy
Agnostus intermedius was named by Tullberg (1880). It is not extant.

It was recombined as Ptychagnostus intermedius by Robison (1984).

Synonymy list
YearName and author
1880Agnostus intermedius Tullberg
1984Ptychagnostus intermedius 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
speciesintermedius(Tullberg 1880)

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 intermedius Tullberg 1880
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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 St Davids to the top of the Floran or 506.50000 to 503.00000 Ma

Collections (22 total)


Time interval Ma Country or state Original ID and collection number
Cambrian538.8 - 486.85Argentina (Mendoza) Ptychagnostus intermedius (200107)
Delamaran509.7 - 505.3USA (Utah) Ptychagnostus intermedius (10566)
Amgan508.2 - 504.5USA (Utah) Ptychagnostus intermedius (225065 225070)
Solvan508.2 - 504.5Canada (Newfoundland and Labrador) Ptychagnostus intermedius (10826)
Middle Cambrian506.5 - 497.0USA (Utah) Ptychagnostus intermedius (86728 86730 86735 86736 156505 156507)
Middle Cambrian506.5 - 497.0USA (Nevada) Ptychagnostus intermedius (156500 156501 156502)
St Davids506.5 - 497.0Greenland Ptychagnostus intermedius (10478)
Tuesaian505.3 - 503.0Kazakhstan Ptychagnostus intermedius (9966 9967 9969 118054 118085 118086)
Floran504.5 - 503.0Australia (Queensland) Ptychagnostus intermedius (90972)