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Acanthostrophia

Gastropoda - Protorculidae

Taxonomy
Acanthostrophia was named by Conti and Fischer (1984) [Sepkoski's age data: J Bajo Sepkoski's reference number: 909].

It was assigned to Zygopleuridae by Conti and Fischer (1984); to Opisthobranchia by Sepkoski (2002); to Abyssochrysidae by Kaim et al. (2008); and to Protorculidae by Nützel (1998) and Kaim and Conti (2010).

Synonymy list
YearName and author
1984Acanthostrophia Conti and Fischer
1998Acanthostrophia Nützel
2002Acanthotrophia Sepkoski, Jr.
2008Acanthostrophia Kaim et al.
2010Acanthostrophia Kaim and Conti p. 22

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
RankNameAuthor
classGastropodaCuvier 1797
subclassProsobranchiaMilne-Edwards 1848
superorderCaenogastropodaCox 1959
superfamilyZygopleuroidea
familyProtorculidae
genusAcanthostrophia

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
Conti and Fischer 1984Coquille très élancée. Protoconque conique à tours nombreux, bombés et costulés. Tours de spire très nombreux, portant une rangée de fortes épines à leur partie inférieure. Aucune ornementation spirale. Base carénée à la périphérie, lisse, imperforée. Ouverture petite, holostome ; bord columellaire mince, faiblement excavé, formant une courbe assez brusque à son point de raccordement avec le labre.
A. Kaim and M. A. Conti 2010Shell very elongated. Protoconch conical with many convex and ribbed whorls. Teleoconch with numerous whorls having a line of strong spines in their lower part. No spiral ornamentation present. Base angulate at the periphery, smooth, anomphalous. Aperture small and holostomatous; columellar edge thin, slightly excavated, forming a rather abrupt curve at the connection point with the lip.