PBDB Taxon

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Alvania (Linemera)

Gastropoda - Rissoidae

Taxonomy

Linemera was named by Finlay (1924) [Sepkoski's age data: T Eo-m-u R Sepkoski's reference number: 899]. It is extant.

It was reranked as Merelina (Linemera) by Ladd (1966); it was reranked as Alvania (Linemera) by Ponder (1984).

It was assigned to Merelina by Ladd (1966); to Alvania by Ponder (1984); and to Neotaenioglossa by Sepkoski (2002).

Species lacking formal opinion data

Alvania areolifera, Alvania barreti, Alvania brachia, Alvania curta, Alvania dinora, Alvania epulata, Alvania galapagensis, Alvania gontsharovae, Alvania halia, Alvania hoodensis, Alvania iliuliukensis, Alvania lirata, Alvania montensis, Alvania nemo, Alvania obliquistoma, Alvania oldroydi, Alvania sculpta, Alvania tenuicostata, Alvania veleroana

Synonymy list

Year	Name and author
1924	Linemera Finlay p. 483
1966	Merelina (Linemera) Ladd p. 63
1984	Alvania (Linemera) Ponder p. 45
2002	Linemera Sepkoski

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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)
superfamily	Rissooidea	Gray 1847
family	Rissoidae	Gray 1847
genus	Alvania	Risso 1826
subgenus	Linemera	(Finlay 1924)

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.

Subg. Alvania (Linemera) Finlay 1924

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Diagnosis

Reference	Diagnosis
W. F. Ponder 1984	Shell: similar to Alvania S.s., with rather weak to strong clathrate sculpture, the axial elements sometimes predominant. Aperture simple, varix usually weak (Figs 23A, B; 96F; 98A, E). Protoconch of 1 Yz bulbous whorls, sculptured with exceedingly minute granules which are sometimes coalesced to form short, horizontal striae (Figs 96G; 98B, G).

Measurements

No measurements are available

Composition:

aragonitec

Locomotion:

actively mobilef

Life habit:

epifaunalf

Diet:

grazerf

Vision:

limitedc

Created:

2009-09-10 07:55:20

Modified:

2009-09-10 09:55:20

Source: f = family, c = class

References: Kiessling 2004, Hendy et al. 2009

Age range: base of the Altonian to the top of the Holocene or 18.70000 to 0.00000 Ma

Collections (4 total)

Time interval	Ma	Country or state	Original ID and collection number
Altonian	18.7 - 15.9	New Zealand	Linemera awamoaensis (67896) Linemera pukeuriensis, Linemera minuta (67900)
Late/Upper Miocene	11.63 - 5.333	Palau	Merelina telkibana (77930)
Holocene	0.0117 - 0.0	China	Linemera revecta (96352)