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Euspira lakhaparensis

Gastropoda - Naticidae

Discussion

Euspira jhuraensis n. sp. fromthe Oxfordian horizons of Kutch has a large-sized shell, whereas E. lakhaparensis n. sp. has a medium-sized shell and comes from the younger Tithonian bed. In E. jhuraensis n. sp., the spire is very low and consists of two whorls, whereas in E. lakhaparensis n. sp., the spire is slightly elevated and consists of three whorls. These two species also differ in growth line patterns: E. jhuraensis n. sp. has orthocline growth lines, but they are slightly prosocline to straight in E. lakhaparensis n. sp.

Euspira lakhaparensis n. sp. closely resembles E. rectilabrum (Conrad, 1858) from the lower Maastrichtian of the Mexcala Formation, Mexico (Perrilliat et al., 2000; p. 14, fig. 6.9, 6.10) in having a globose shell and impressed suture. But E. rectilabrum has a moderately thick shell and larger number of whorls in the teleoconch. These two species also differ in shell size and growth lines patterns: E. lakhaparensis n. sp. has a medium-sized shell and slightly prosocline-to-straight growth lines, whereas in E. rectilabrum, the shell is small and growth-line pattern is prosocline.

Taxonomy
Euspira lakhaparensis was named by Das et al. (2019) [Etymology.—The species name refers to Lakhapar village of Kutch, western India, from where the species has been collected.]. Its type specimen is Holotype specimen (ISI/g/Jur/N 99). and is a 3D body fossil.

Synonymy list
YearName and author
2019Euspira lakhaparensis Das et al. fig. 6

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classGastropoda
RankNameAuthor
subclassCaenogastropoda(Cox 1959)
Sorbeoconcha(Ponder and Lindberg 1997)
Hypsogastropoda(Ponder and Lindberg 1997)
superfamilyNaticoidea(Forbes 1838)
familyNaticidaeGuilding 1834
subfamilyPolinicinaeGray 1847
genusEuspiraAgassiz 1837
specieslakhaparensis

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.

Euspira lakhaparensis Das et al. 2019
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitef
Locomotion: actively mobileg
Life habit: semi-infaunalg
Diet: carnivoreg
Vision: limitedc
Created: 2004-10-20 01:35:19
Modified: 2018-03-19 13:36:54
Source: g = genus, f = family, c = class
References: Aberhan et al. 2004, Kiessling 2004
Collections
No collection or age range data are available