Basic info Taxonomic history Classification Relationships
Morphology Ecology and taphonomy   Age range and collections

Mastigospira

Gastropoda - Euomphalina - Euomphalidae

Synonymy list
YearName and author
1949Mastigospira La Rocque pp. 114 – 116
1960Mastigospira Knight et al. p. 194
1981Mastigospira Morris and Cleevely
1984Mastigospira Linsley and Kier
2002Mastigospira Sepkoski, Jr.
2006Mastigospira Frýda et al. p. 230

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassEogastropoda
orderEuomphalina
superfamilyEuomphaloidea()
familyEuomphalidae
subfamilyOdontomariinae
genusMastigospira

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.

Diagnosis
ReferenceDiagnosis
A. La Rocque 1949Shell large, 96 mm. or more long, tusk-shaped, uncoiled, gently and irregularly curved, triangular in cross section, with three more or less developed, unequally spaced, winglike processes, two of them basal, the other apical, the latter less pronounced than the former; interior circular in cross section. Shell thick, especially at the bases of the processes. Aperture flaring at the two basal angles, much less so at the apical one. Sculpture of fine growth lines curving backward along the base and forward from the apical angle. Nuclear whorls not preserved. Apical part terminating abruptly in a convex surface which suggests that the earliest part of the shell had been broken off at a point marked by a septum or plug.