PBDB Taxon

Basic info	Taxonomic history	Classification	Included Taxa
Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Periploma (Periploma)

Bivalvia - Thraciida - Periplomatidae

Taxonomy

Periploma (Periploma) was named by Schumacher (1816). It is extant.

It was assigned to Periploma by Schumacher (1816), Tashiro and Kozai (1982) and Kafanov et al. (2005).

Subtaxa

Periploma (Periploma) mifunensis, Periploma (Periploma) planiuscula (syn. Periploma argentaria), Periploma (Periploma) pulchella

Species lacking formal opinion data

Periploma aleutica, Periploma altarata, Periploma besshoense, Periploma fragilis, Periploma howei, Periploma kariboensis, Periploma korniana, Periploma macneili, Periploma primaverensis, Periploma stearnsi, Periploma subgracile, Periploma topei, Periploma vivarirex, Periploma yokoyamai, Periploma yokoymai

Synonymy list

Year	Name and author
1816	Periploma (Periploma) Schumacher
1982	Periploma (Periploma) Tashiro and Kozai p. 88
2005	Periploma (Periploma) Kafanov et al. p. 6

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia
—	Eubivalvia
subclass	Autobranchia	(Groblen 1894)

Rank	Name	Author
infraclass	Heteroconchia	(Gray 1854)
—	Cardiomorphi	Ferussac 1822
—	Cardioni	Ferussac 1822
—	Cardiidia	Ferussac 1822
—	Poromyata	Ridewood 1903
order	Thraciida
superfamily	Thracioidea	Stoliczka 1870
family	Periplomatidae	Dall 1895
genus	Periploma	Schumacher 1816
subgenus	Periploma	Schumacher 1816

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. Periploma (Periploma) Schumacher 1816

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†Periploma (Periploma) mifunensis Tamura 1977

Periploma (Periploma) planiuscula Sowerby I 1834

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Invalid names: Periploma argentaria Conrad 1837 [synonym]

†Periploma (Periploma) pulchella Hatai and Nisiyama 1949

Diagnosis

No diagnoses are available

Measurements

part	N	mean
height	1	22.0

Composition:

aragonitec

Locomotion:

facultatively mobileg

Life habit:

infaunalg

Diet:

suspension feederg

Vision:

blindc

Created:

2009-09-09 08:00:26

Modified:

2009-09-09 10:00:26

Source: g = genus, c = class

References: Aberhan et al. 2004, Sanchez Roig 1926, Todd 2001

Age range

Maximum range based only on fossils: base of the Middle Turonian to the top of the Late/Upper Pleistocene or 93.50000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 89.3 Ma

Collections (31 total)

Time interval	Ma	Country or state	Original ID and collection number
Middle Turonian - Late/Upper Turonian	93.5 - 89.3	Japan	Periploma mifunensis (87012)
Danian - Thanetian	66.0 - 56.0	Russian Federation	Periploma totschiloensis (49981)
Eocene	56.0 - 33.9	Russian Federation	Periploma efimovae (50078)
Lutetian - Priabonian	47.8 - 33.9	Russian Federation	Periploma efimovae, Periploma totschiloensis (50138)
Late/Upper Eocene	37.2 - 33.9	Japan	Periploma pulchella (70424)
Rupelian	33.9 - 28.1	Russian Federation	Periploma pulchella (49975 49980)
Aquitanian - Burdigalian	23.03 - 15.97	Russian Federation	Periploma pulchella (50041 50050)
Langhian - Serravallian	15.97 - 11.62	Russian Federation	Periploma pulchella (50037 50038)
Tortonian	11.62 - 7.246	USA (Alaska)	Periploma aleutica (37399 37401 37415)
Tortonian	11.62 - 7.246	Russian Federation	Periploma pulchella (49978)
Early/Lower Pliocene	5.333 - 3.6	USA (California)	Periploma planiuscula (97241)
Pliocene	5.333 - 2.588	Costa Rica	Periploma planiuscula (66792 66795 66796)
Pliocene	5.333 - 2.588	USA (California)	Periploma argentaria (216912)
Pliocene	5.333 - 2.588	Ecuador (Manabi)	Periploma planiuscula (51885)
Late/Upper Pleistocene	0.129 - 0.0117	USA (California)	Periploma argentaria (222659 222660 222661 222662) Periploma planiuscula (59063 96895 219029 219030) Periploma planiusculum (96566 160361)