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Acila (Truncacila) shumardi

Bivalvia - Nuculida - Nuculidae

Taxonomy
Nucula (Acila) shumardi was named by Dall (1909). Its type specimen is USNM 406406, a shell, and it is a 3D body fossil.

It was recombined as Acila shumardi by Weaver (1916) and Clark (1918); it was recombined as Acila (Truncacila) shumardi by Durham (1944), Moore (1976) and Moore (1983).

Synonymy list
YearName and author
1909Nucula (Acila) shumardi Dall
1916Acila shumardi Weaver
1918Acila shumardi Clark p. 119 figs. Plate 13, figures 7, 8 and 17
1925Nucula (Acila) shumardi Clark p. 75
1944Acila (Truncacila) shumardi Durham p. 134
1976Acila (Truncacila) shumardi Moore p. 42
1983Acila (Truncacila) shumardi Moore p. A10 figs. Plate 1, figures 15, 16

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
RankNameAuthor
subclassProtobranchia(Pelseneer 1889)
superorderNuculiformiiDall 1889
orderNuculida(Dall 1889)
superfamilyNuculoidea(Gray 1824)
familyNuculidaeGray 1824
genusAcilaAdams and Adams 1858
subgenusTruncacilaGrant and Gale 1931
speciesshumardi(Dall 1909)

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.

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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 mobilef
Life habit: infaunalf
Diet: deposit feederf
Diet 2: suspension feederf
Vision: blindc
Created: 2008-11-15 10:09:53
Modified: 2009-08-18 20:13:53
Source: f = family, c = class
References: Aberhan et al. 2004, Mikkelsen and Bieler 2008

Age range: base of the Priabonian to the top of the Chattian or 38.00000 to 23.03000 Ma

Collections (53 total)


Time interval Ma Country or state Original ID and collection number
Middle Eocene47.8 - 37.71USA (California) Acila shumardi (194585)
Priabonian38.0 - 33.9USA (California) Acila shumardi (52622 52624 52625 52626 52801 52829)
Priabonian38.0 - 33.9USA (Washington) Acila shumardi (91606 91607)
Priabonian38.0 - 33.9USA (Oregon) Acila shumardi (39023 39027 39029 39030 39031)
Late/Upper Eocene37.2 - 33.9USA (California) Acila shumardi (71161 71170 71174)
Early/Lower Oligocene33.9 - 28.4USA (California) Acila shumardi (71183 71187 71188 71195 71198)
Rupelian33.9 - 28.1USA (Oregon) Acila shumardi (37696 37697 37698 37699 37700 37701 37702 37816 37817 37818 37820 37822 37824)
Rupelian33.9 - 28.1USA (Washington) Acila shumardi (208145)
Early/Lower Oligocene - Late/Upper Oligocene33.9 - 23.03USA (Alaska) Acila shumardi (44112)
Oligocene33.9 - 23.03USA (Washington) Acila shumardi (208140 208141 208144 208149)
Oligocene33.9 - 23.03USA (Alaska) Acila shumardi (44082 44083 44101 44106)
Chattian28.1 - 23.03USA (Oregon) Acila shumardi (37677 37678 37679 37681 37687 37691 37694 57052)