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Aegitellus placus

Helcionelloida - Helcionellida - Helcionellidae

Taxonomy
Aegides placus was named by Luo et al. (1982) [Jiang in Luo, Jiang, Wu, Song & Ouyang 1982]. It is a 3D body fossil.

It was recombined as Aegitellus placus by Feng et al. (2000), Parkhaev (2005), Parkhaev (2006), Parkhaev and Demidenko (2010).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1982Tannuella retusa Luo and Jiang p. 191 figs. Pl. 20, figs. 8, 9
1982Aegides placus Luo et al. p. 192 figs. txt. f. 1, pl. 20 f. 13, not f. 12, 14-15
1989Aegides placus Qian and Bengtson p. 122 figs. txt. f. 81
2000Aegitellus placus Feng et al. p. 371
2000Aegitellus concentricus Feng et al. p. 372 figs. pl. 1, figs. 7-10
2005Aegitellus placus Parkhaev figs. pl. 1 f. 3
2006Aegitellus placus Parkhaev figs. txt. f. 3a-b
2010Aegitellus placus Parkhaev and Demidenko p. 1017 figs. pl. 55 f. 1-7

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classHelcionelloidaPeel 1991
orderHelcionellida
familyHelcionellidae
genusAegitellus
speciesplacus()

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.

Aegitellus placus Luo et al. 1982
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Invalid names: Aegitellus concentricus Feng et al. 2000 [synonym], Tannuella retusa Luo and Jiang 1982 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitec
Entire body: yess
Adult length: 1.0 to < 10s
Adult width: 1.0 to < 10s
Adult height: 0.1 to < 1.0s
Thickness: thins
Folds: nones
Ribbing: minors
Spines: nones
Internal reinforcement: nones
Environment: marinec
Locomotion: slow-movingf
Life habit: low-level epifaunalf
Diet: detritivoref
Vision: limitedc
Created: 2009-03-03 21:26:10
Modified: 2009-03-03 23:26:10
Source: s = species, f = family, c = class
References: Hendy 2009, Hendy et al. 2009, Feng et al. 2000

Age range: base of the Meishucunian to the top of the Tommotian or 530.70000 to 521.00000 Ma

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Nemakit-Daldynian538.8 - 525.5China (Yunnan) Aegitellus concentricus (87095)
Meishucunian - Nemakit-Daldynian530.7 - 525.5China (Yunnan) Aegitellus concentricus (99813)
Meishucunian - Tommotian530.7 - 521.0China (Yunnan) Aegides placus (96284 96285 96288) Aegitellus concentricus (50465)
Tommotian525.5 - 521.0China (Yunnan) Aegitellus placus (171901 171902)