PBDB Taxon

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

Barbatia (Acar) aspera

Bivalvia - Arcida - Arcidae

Taxonomy

Navicula aspersa was named by Conrad (1854). Its type specimen is USNM 353949, a shell, and it is a 3D body fossil.

It was corrected as Navicula aspera by Conrad (1856); it was recombined as Barbatia (Acar) aspera by Harris and Palmer (1946).

Sister species lacking formal opinion data

Arca halmyrus, B. awamoana, B. cochlearis, B. decussata, B. dejaeri, B. fractura, B. helblingii, B. kubara, B. laekeniana, B. mackayi, B. palmerae, B. reklawensis, B. salebrosus, B. sorongensis, B. striatularis, B. textiliosa, B. vincenti, B. salebrosus, B. beaugrandi, B. laeviuscula, B. thurrelli, B. uxoripalmeri, B. reklawensis

Synonymy list

Year	Name and author
1854	Navicula aspersa Conrad p. 289 figs. pl. 14, fig. 5
1856	Navicula aspera Conrad p. 258
1946	Barbatia (Acar) aspera Harris and Palmer p. 47 figs. pl. 11, figs. 12, 13

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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)

Rank	Name	Author
infraclass	Pteriomorphia	(Beurlen 1944)
—	Ostreomorphi	Ferussac 1822
—	Arcioni	Gray 1854
order	Arcida	(Stoliczka 1871)
superfamily	Arcoidea	(Lamarck 1809)
family	Arcidae	Lamarck 1809
subfamily	Arcinae	Lamarck 1809
genus	Barbatia	Gray 1857
subgenus	Acar
species	aspera	()

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.

†Barbatia (Acar) aspera Conrad 1854

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitef

Entire body:

yesf

Adult length:

10 to < 100f

Adult width:

10 to < 100f

Adult height:

10 to < 100f

Thickness:

intermediatef

Folds:

minorf

Ribbing:

majorf

Spines:

nonef

Internal reinforcement:

nonef

Ontogeny:

accretionf

Environment:

lagoonal, coastal, inner shelf, outer shelf, oceanic, brackish, freshwaterf

Locomotion:

stationaryg

Attached:

yesg

Life habit:

epifaunalg

Diet:

suspension feederg

Vision:

limitedf

Created:

2009-09-09 09:03:48

Modified:

2009-09-09 11:03:48

Source: g = genus, f = family

References: Sanchez Roig 1926, Mikkelsen and Bieler 2008

Age range: base of the Lutetian to the top of the Late/Upper Eocene or 48.07000 to 33.90000 Ma

Collections (13 total)

Time interval	Ma	Country or state	Original ID and collection number
Lutetian	48.07 - 41.03	USA (Texas)	Barbatia aspera (90455)
Bartonian	41.03 - 37.71	USA (Louisiana)	Barbatia aspera (205501)
Bartonian	41.03 - 37.71	USA (Mississippi)	Barbatia aspera (2444 2446 2449 2451 90704 90707 90709 99675 99734 205526)
Late/Upper Eocene	37.71 - 33.9	USA (Mississippi)	Navicula aspera (208935)