PBDB Taxon

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

Diplodonta (Microstagon)

Bivalvia - Cardiida - Ungulinidae

Taxonomy

Microstagon was named by Cossmann (1896) [Sepkoski's age data: T Eo-l R]. It is extant.

It was reranked as Diplodonta (Microstagon) by Coan and Valentich-Scott (2012).

It was assigned to Ungulinidae by Todd (2001); to Veneroida by Sepkoski (2002); and to Diplodonta by Coan and Valentich-Scott (2012).

Subtaxa

Diplodonta (Microstagon) obliqua, Microstagon miliaria

Species lacking formal opinion data

Diplodonta aclinis, Diplodonta agulhasensis, Diplodonta berryi, Diplodonta bezanconi, Diplodonta brocchii, Diplodonta brocchii, Diplodonta caloosaensis, Diplodonta catopotium, Diplodonta cycloidea, Diplodonta elatia, Diplodonta felcinella, Diplodonta fragilis, Diplodonta frosti, Diplodonta gabbi, Diplodonta gabbi, Diplodonta glos, Diplodonta gouldi, Diplodonta gouldi, Diplodonta harrisi, Diplodonta hindu, Diplodonta hopkinsensis, Diplodonta hopkinsensis, Diplodonta inflator, Diplodonta leana, Diplodonta leptodoma, Diplodonta leptodoma, Diplodonta marlboroensis, Diplodonta ochlockoneensis, Diplodonta pakistanica, Diplodonta paleocaenica, Diplodonta petropolitana, Diplodonta proboscidea, Diplodonta puncata, Diplodonta punctulata, Diplodonta puncturella, Diplodonta radiata, Diplodonta rotunda, Diplodonta rotundatus, Diplodonta sansibarica, Diplodonta satex, Diplodonta sphaeromorpha, Diplodonta subradiata, Diplodonta tenuis, Diplodonta tumida, Diplodonta urgonensis, Diplodonta yorkensis, Microstagon nana, Microstagon productum, Taras rotundatus

Synonymy list

Year	Name and author
1896	Microstagon Cossmann
2001	Microstagon Todd
2002	Microstagon Sepkoski
2012	Diplodonta (Microstagon) Coan and Valentich-Scott p. 744

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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)
infraclass	Heteroconchia	(Gray 1854)
—	Cardiomorphi	Ferussac 1822

Rank	Name	Author
—	Cardioni	Ferussac 1822
—	Cardiidia	Ferussac 1822
—	Cardiata	Ferussac 1822
superorder	Cardiiformii	Ferussac 1822
order	Cardiida	Ferussac 1822
suborder	Cardiidina	Ferussac 1822
—	Veneroidei	(Gray 1854)
—	Veneroitei	Gray 1854
superfamily	Ungulinoidea	Adams and Adams 1857
family	Ungulinidae	Adams and Adams 1857
genus	Diplodonta	Bronn 1831
subgenus	Microstagon	(Cossmann 1896)

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. Diplodonta (Microstagon) Cossmann 1896

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Diplodonta (Microstagon) obliqua Philippi 1846

†Microstagon miliaria Lamarck 1806

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitec

Locomotion:

facultatively mobileg

Life habit:

infaunalg

Diet:

suspension feederg

Vision:

blindc

Comments:

LIFE HISTORY: IA, MA, UN, SU according to Todd (2001).g

Created:

2009-09-09 14:03:54

Modified:

2009-09-09 16:04:35

Source: g = genus, c = class

References: Sanchez Roig 1926, Aberhan et al. 2004

Age range

Maximum range based only on fossils: base of the Paleocene to the top of the Bartonian or 66.00000 to 37.71000 Ma
Minimum age of oldest fossil (stem group age): 56.0 Ma

Collections (5 total)

Time interval	Ma	Country or state	Original ID and collection number
Paleocene	66.0 - 56.0	Germany	Microstagon sp. (3114)
Lutetian	48.07 - 41.03	United Kingdom (England)	Microstagon miliaria, Microstagon obliqua (8125)
Bartonian	41.03 - 37.71	USA (Alabama)	Microstagon nana (90600 205489)
Bartonian	41.03 - 37.71	France (Oise)	Microstagon productum, Microstagon miliare (3494)