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Pseudophalacroma dubium

Artiopoda - Agnostida - Ptychagnostidae

Taxonomy
Phalacroma dubium was named by Whitehouse (1936). It is not extant. It is the type species of Pseudophalacroma.

It was recombined as Lejopyge dubium by Robison (1984); it was recombined as Pseudophalacroma dubium by Peng and Robison (2000), Naimark and Pegel (2017).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1936Phalacroma dubium Whitehouse
1958Pseudophalacroma crebra Pokrovskaya
1984Lejopyge dubium Robison p. 37
2000Pseudophalacroma dubium Peng and Robison
2009Yakutiana crebra Özdikmen
2017Pseudophalacroma dubium Naimark and Pegel p. 1184

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
orderAgnostidaSalter 1864
suborderAgnostinaSalter 1864
superfamilyCondylopygoideaRaymond 1913
familyPtychagnostidaeKobayashi 1939
genusPseudophalacromaPokrovskaya 1958
speciesdubium(Whitehouse 1936)

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.

Pseudophalacroma dubium Whitehouse 1936
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Invalid names: Pseudophalacroma crebra Pokrovskaya 1958 [synonym]
Diagnosis
No diagnoses are available
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 Zhanaarykian to the top of the Boomerangian or 503.00000 to 499.00000 Ma

Collections (19 total)


Time interval Ma Country or state Original ID and collection number
Mayan504.5 - 499.5Russian Federation Pseudophalacroma crebra (225248)
Mayan504.5 - 499.5Russian Federation (Sakha) Pseudophalacroma crebra (225247)
Wangcunian504.5 - 497.0China (Zhejiang) Pseudophalacroma dubium (125538 125539)
Wangcunian504.5 - 497.0China (Hunan) Pseudophalacroma dubium (49161 49162 49281 49282 49283 128317)
Wangcunian - Guzhangian504.5 - 497.0China (Zhejiang) Pseudophalacroma dubium (125554)
Zhanaarykian503.0 - 500.5Kazakhstan Pseudophalacroma dubium (9958 9961 9962 118097 118102)
Boomerangian500.5 - 499.0Australia (Queenslandd) Pseudophalacroma dubium (225252)
Ayusokkanian499.5 - 497.0Kazakhstan Pseudophalacroma dubium (9950 118158)