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Helcionella lemdadensis

Helcionelloida - Helcionellidae

Taxonomy
Helcionella lemdadensis was named by Geyer et al. (2018) [= v 1986 Helcionella oblonga Cobbold 1921—Geyer, p. 74–75, pl. 1, fig. 9a–c. pars 2016 Helcionella oblonga—Jacquet and Brock, p. 350.]. Its type specimen is SMF 34737 and is a 3D body fossil. Its type locality is Lemdad-Mulde, Profil Le I, horizon X 255, which is in a Solvan carbonate limestone in the Jbel Wawrmast Formation of Morocco.

Sister species lacking formal opinion data

Synonymy list
YearName and author
2018Helcionella lemdadensis Geyer et al. fig. 5n

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classHelcionelloidaPeel 1991
familyHelcionellidae
genusHelcionella
specieslemdadensis

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.

Helcionella lemdadensis Geyer et al. 2018
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitec
Entire body: yesg
Adult length: 1.0 to < 10g
Adult width: 1.0 to < 10g
Adult height: 1.0 to < 10g
Thickness: thing
Folds: noneg
Ribbing: minorg
Spines: noneg
Internal reinforcement: noneg
Environment: marinec
Locomotion: slow-movingf
Life habit: low-level epifaunalf
Diet: detritivoref
Vision: limitedc
Created: 2009-03-03 21:21:51
Modified: 2009-03-16 10:15:07
Source: g = genus, f = family, c = class
References: Hendy 2009, Hendy et al. 2009, Feng et al. 2000

Age range: Solvan or 508.20000 to 504.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Solvan508.2 - 504.5Morocco (High Atlas) Helcionella oblonga (type locality: 50547)