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Quadratonucula

Bivalvia - Nuculanida - Malletiidae

Taxonomy
Quadratonucula was named by Dickins (1963) [Sepkoski's age data: C Mosc-u P Sakm-u]. Its type is Quadratonucula australiensis.

It was assigned to Malletiinae by Vokes (1980); to Nuculoida by Sepkoski (2002); and to Malletiidae by Pagani (2004).

Species
Q. asymmetrica, Q. australiensis (type species), Q. stella
Species lacking formal opinion data
Q. argentinensis, Q. parva

Synonymy list
YearName and author
1963Quadratonucula Dickins p. 32
1980Quadratonucula Vokes p. 4
2002Quadratonucula Sepkoski
2004Quadratonucula Pagani p. 272

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
RankNameAuthor
—Eubivalvia
subclassProtobranchia(Pelseneer 1889)
superorderNuculaniformiiCarter et al. 2000
orderNuculanida(Carter et al. 2000)
superfamilyNuculanoideaAdams and Adams 1858
familyMalletiidae(Adams and Adams 1858)
genusQuadratonucula

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. †Quadratonucula Dickins 1963
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†Quadratonucula asymmetrica Waterhouse 1964
†Quadratonucula stella Yancey 1978
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
valve height84.992.5011.45.752.82

Composition: aragonitec
Locomotion: facultatively mobilesuperf
Life habit: infaunalsuperf
Diet: deposit feedersuperf
Vision: blindc
Created: 2009-09-09 13:26:01
Modified: 2009-09-09 15:26:01
Source: superf = superfamily, c = class
References: Aberhan et al. 2004, Sanchez Roig 1926

Age range: base of the Bashkirian to the top of the Capitanian or 323.40000 to 259.51000 Ma

Collections (11 total)


Time interval Ma Country or state Original ID and collection number
Bashkirian - Moscovian323.4 - 307.0Argentina Q. argentinensis (64407)
Bashkirian - Moscovian323.4 - 307.0Argentina (Chubut) Q. argentinensis (39936)
Pennsylvanian323.4 - 298.9Argentina (Chubut) Q. parva (43623)
Sakmarian293.52 - 290.1Australia (Western Australia) Q. australiensis (84591 85842 85847)
Artinskian290.1 - 283.3USA (Nevada) Q. stella (89331)
Wordian266.9 - 264.28New Zealand (Southland) Q. asymmetrica (41767 41780)
Wordian266.9 - 264.28New Zealand Q. asymmetrica (52832)
Capitanian264.28 - 259.51New Zealand (Southland) Q. asymmetrica (41777)