PBDB Taxon

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

Septifer (Septifer) excisus

Bivalvia - Mytilida - Mytilidae

Taxonomy

Septifer excisus was named by Weigmann (1837). It is extant.

It was recombined as Septifer (Septifer) excisus by Paulay (1995).

Sister species lacking formal opinion data

S. annectans, S. bryanae, S. cottae, S. denticulatus, S. dichotomous, S. euglyphus, S. eurydices, S. eurydices, S. gaurdakensis, S. gryphoides, S. jordani, S. mediocris, S. oblitus, S. probolus, S. saccoi, S. scalaris, S. signatus, S. sublineatus, S. superbus, S. ushibukensis, S. variabilis, S. scalaris, S. subfenestratus

Synonyms

Septifer vaughani was named by Dall et al. (1938). It is extant.

It was synonymized subjectively with Septifer (Septifer) excisus by Paulay (1995).

Synonymy list

Year	Name and author
1837	Septifer excisus Weigmann
1938	Septifer vaughani Dall et al.
1995	Septifer (Septifer) excisus Paulay p. 19

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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	Pteriomorphia	(Beurlen 1944)
—	Mytilomorphi	Ferussac 1822
order	Mytilida	(Rafinesque 1815)
superfamily	Mytiloidea	Rafinesque 1815
family	Mytilidae	Rafinesque 1815
subfamily	Mytilinae	Rafinesque 1815
genus	Septifer	Récluz 1848
subgenus	Septifer	Récluz 1846
species	excisus	(Weigmann 1837)

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.

Septifer (Septifer) excisus Weigmann 1837

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Invalid names: Septifer vaughani Dall et al. 1938 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitef

Composition 2:

low Mg calcitef

Entire body:

yesf

Adult length:

10 to < 100f

Adult width:

10 to < 100f

Adult height:

10 to < 100f

Thickness:

intermediatef

Folds:

nonef

Ribbing:

minorf

Spines:

nonef

Internal reinforcement:

nonef

Ontogeny:

accretionf

Environment:

lagoonal, coastal, inner shelf, outer shelf, oceanic, brackish, freshwaterf

Locomotion:

stationaryg

Attached:

yesg

Life habit:

epifaunalg

Diet:

suspension feederg

Vision:

blindc

Created:

2009-09-09 08:23:33

Modified:

2009-09-09 10:23:33

Source: g = genus, f = family, c = class

References: Sanchez Roig 1926, Aberhan et al. 2004, Kiessling 2004

Age range: Late/Upper Pleistocene or 0.12900 to 0.01170 Ma

Collections (14 total)

Time interval	Ma	Country or state	Original ID and collection number
Middle Pleistocene - Late/Upper Pleistocene	0.774 - 0.0117	USA (Hawaii)	Septifer vaughani (89294 89299 89300 89302 89303 89307 89308 89406)
Late/Upper Pleistocene (interglacial)	0.129 - 0.0117	USA (Hawaii)	Septifer vaughani (89290 89292 89400 89402)
Late/Upper Pleistocene	0.129 - 0.0117	Djibouti	Septifer excisus (96787)
Late/Upper Pleistocene	0.129 - 0.0117	Japan	Septifer excisus (88886)