PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Monoplex

Gastropoda - Ranellidae

Taxonomy

Monoplex was named by Perry (1811) [Sepkoski's age data: T Eo-m R Sepkoski's reference number: 909]. It is extant.

It was reranked as Cymatium (Monoplex) by Todd (2001), Beu (2005) and Landau et al. (2008).

It was assigned to Neotaenioglossa by Sepkoski (2002); to Cymatium by Todd (2001), Beu (2005) and Landau et al. (2008); and to Ranellidae by Beu (2010).

Synonyms

Tritonium (Lampusia) was named by Schumacher (1817). It is extant.

It was Triton (Lampusia) by Mörch (1877); it was Cymatium (Lampusia) by Gardner (1947), MacNeil (1960) and Ladd (1977); it was reranked as Lampusia by Sepkoski (2002); it was synonymized subjectively with Monoplex by Beu (2005), Beu (2010) and Global Biodiversity Information Facility (2015).

It was assigned to Triton by Mörch (1877); to Tritonium by Vredenburg (1921); to Cymatium by Gardner (1947), MacNeil (1960) and Ladd (1977); and to Neotaenioglossa by Sepkoski (2002).
Cymatium (Cymatriton) was named by Clench and Turner (1957). It is extant.

It was synonymized subjectively with Cymatium (Monoplex) by Beu (2005); it was synonymized subjectively with Monoplex by Beu (2010).

It was assigned to Cymatium by Clench and Turner (1957) and Ladd (1977).
Cabestanimorpha was named by Iredale (1936). It is extant.

It was synonymized subjectively with Monoplex by Beu (2010).

Synonymy list

Year	Name and author
1811	Monoplex Perry
1817	Tritonium (Lampusia) Schumacher p. 350
1877	Triton (Lampusia) Mörch p. 30
1921	Tritonium (Lampusia) Vredenburg p. 289
1936	Cabestanimorpha Iredale p. 307
1947	Cymatium (Lampusia) Gardner p. 533
1957	Cymatium (Cymatriton) Clench and Turner p. 210
1960	Cymatium (Lampusia) MacNeil p. 59
1977	Cymatium (Lampusia) Ladd p. 33
1977	Cymatium (Cymatriton) Ladd p. 34
2001	Cymatium (Monoplex) Todd
2002	Lampusia Sepkoski
2002	Monoplex Sepkoski
2005	Cymatium (Monoplex) Beu p. 78
2008	Cymatium (Monoplex) Landau et al. p. 455
2010	Monoplex Beu

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Gastropoda

Rank	Name	Author
subclass	Caenogastropoda	(Cox 1959)
—	Sorbeoconcha	(Ponder and Lindberg 1997)
—	Hypsogastropoda	(Ponder and Lindberg 1997)
superorder	Latrogastropoda	Riedel 2000
superfamily	Tonnoidea	(Suter 1913)
family	Ranellidae	Gray 1854
genus	Monoplex	Perry 1811

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.

G. Monoplex Perry 1811

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Monoplex amictus Reeve 1844

Monoplex aquatilis Reeve 1844

†Monoplex cercadicus Maury 1917

†Monoplex chlorostomoides Maury 1924

Monoplex comptus Adams 1855

Monoplex exaratus Reeve 1844

†Monoplex gatunicus Beu 2010

†Monoplex gurabonicus Maury 1917

†Monoplex infelix Maury 1924

†Monoplex jackwinorum Beu 2010