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Calorhadia semen

Bivalvia - Nuculanida - Nuculanidae

Taxonomy
Nucula semen was named by Lea (1883) [DISTRIBUTION: Eocene; Gulf Coastal Plain.]. It is a 3D body fossil.

It was recombined as Nuculana semen by Conrad (1865); it was recombined as Leda semen by de Gregario (1890) and Harris (1919); it was recombined as Calorhadia semen by Palmer and Brann (1965) and Kosnik (2002).

Sister species lacking formal opinion data
C. aldrichiana, C. diminutia, C. houstonia

Synonymy list
YearName and author
1865Nuculana semen Conrad p. 13
1883Nucula semen Lea p. 200 figs. pl. 6, fig. 214
1890Leda semen de Gregario p. 190
1919Leda semen Harris p. 56
1965Calorhadia semen Palmer and Brann p. 68
2002Calorhadia semen Kosnik

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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
familyNuculanidaeAdams and Adams 1858
genusCalorhadia
speciessemen(Lea 1883)

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.

†Calorhadia semen Lea 1883
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragonitef
Entire body: yesf
Adult length: 1.0 to < 10f
Adult width: 1.0 to < 10f
Adult height: 1.0 to < 10f
Thickness: thinf
Folds: nonef
Ribbing: minorf
Spines: nonef
Internal reinforcement: nonef
Ontogeny: accretionf
Environment: coastal, inner shelf, outer shelf, oceanicf
Locomotion: facultatively mobileg
Life habit: infaunalg
Diet: deposit feederg
Vision: blindc
Created: 2009-09-09 13:22:44
Modified: 2009-09-09 15:22:44
Source: g = genus, f = family, c = class
References: Sanchez Roig 1926, Aberhan et al. 2004, Kiessling 2004

Age range: base of the Lutetian to the top of the Bartonian or 47.80000 to 38.00000 Ma

Collections (20 total)


Time interval Ma Country or state Original ID and collection number
Lutetian47.8 - 41.3USA (Alabama) Calorhadia semen (1435 1440 1441 1443 1444)
Lutetian47.8 - 41.3USA (Virginia) Calorhadia semen (1445 1446 1447 1448)
Middle Eocene47.8 - 37.71USA (Virginia) Leda semen (60664)
Bartonian41.3 - 38.0USA (South Carolina) Leda semen (92487 92490) Yoldia semen (92308 92355 99085)
Bartonian41.3 - 38.0USA (Louisiana) Yoldia semen (44518)
Bartonian41.3 - 38.0USA (Alabama) Calorhadia semen (205488) Yoldia semen (90469 90600 90603)