PBDB Taxon

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

Acila (Truncacila) nehalemensis

Bivalvia - Nuculida - Nuculidae

Taxonomy

Acila nehalemensis was named by Hanna (1924).

It was recombined as Acila (Truncacila) nehalemensis by Schenck (1936), Durham (1944).

Sister species lacking formal opinion data

A. asachiensis, A. ashiyaensis, A. cobboldiae, A. elongata, A. gettisburgensis, A. insignis, A. kusiroensis, A. minima, A. mirabilis, A. parva, A. picturata, A. piura, A. pusilla, A. schumardi, A. tosaensis, A. trilineata, A. elongata, A. antefultoni, A. elongata, A. isthmica, A. kovatschensis, A. submariabilis, A. vengeriana, A. demessa, A. nakazimai, A. chausiensis, A. chicotana, A. enpirensis, A. ermani, A. eximia, A. gottschei, A. granulata, A. himenourensis, A. ilpinensis, A. incignis, A. insignis, A. isignis, A. longa, A. marujamensis, A. munda, A. nakazimai, A. oyamadensis, A. pecticostata, A. picturata, A. plana, A. pleschakovi, A. praevigilia, A. schomburgki, A. triangula, A. vereshagini, Truncacila korjakensis, Truncacila munda, Truncacila shimojimensis, Truncacila subdemessa, Truncacila yoshidai

Synonymy list

Year	Name and author
1924	Acila nehalemensis Hanna
1936	Acila (Truncacila) nehalemensis Schenck p. 57 figs. Plate 8, figures 1, 5, 6, 7, 8, 10,11, 12; text figure 7 (19)
1944	Acila (Truncacila) nehalemensis Durham p. 134

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca
class	Bivalvia
—	Eubivalvia

Rank	Name	Author
subclass	Protobranchia	(Pelseneer 1889)
superorder	Nuculiformii	Dall 1889
order	Nuculida	(Dall 1889)
superfamily	Nuculoidea	(Gray 1824)
family	Nuculidae	Gray 1824
genus	Acila	Adams and Adams 1858
subgenus	Truncacila	Grant and Gale 1931
species	nehalemensis	()

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.

†Acila (Truncacila) nehalemensis Hanna 1924

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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: Priabonian or 37.71000 to 33.90000 Ma

Collections (2 total)

Time interval	Ma	Country or state	Original ID and collection number
Priabonian	37.71 - 33.9	USA (Oregon)	Acila nehalemensis (38993 126108)