PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Cowperesia anceps

Bivalvia - Pholadomyida - Pachydomidae

Taxonomy

Pseudocorbula anceps was named by Reed (1935). Its type specimen is SM F1201, a valve (left valve), and it is a 3D body fossil. Its type locality is Rio Claro, Canoinhas, which is in a Wordian lacustrine - large limestone in the Teresina Formation of Brazil.

It was recombined as Cowperesia anceps by Mendes (1952).

Synonyms

Pseudocorbula camaquensis was named by Mendes (1944). It is not extant. Its type locality is Railway Cutting, 1.5km SE of Camaquã Station, which is in a Capitanian/Wuchiapingian lacustrine marl in the Corumbataí Formation of Brazil.

It was synonymized subjectively with Cowperesia anceps by Mendes (1952).
Pseudocorbula triangularis was named by Mendes (1944). It is not extant. Its type locality is Chácara Sr. Raven, 2km NE of Corumbataí, which is in a Capitanian/Wuchiapingian lacustrine marl in the Corumbataí Formation of Brazil.

It was synonymized subjectively with Cowperesia anceps by Mendes (1952).
Pseudocorbula subtriangularis was named by Reed (1935). It is a 3D body fossil. Its type locality is Rio Claro, Canoinhas, which is in a Wordian lacustrine - large limestone in the Teresina Formation of Brazil.

It was synonymized subjectively with Cowperesia anceps by Mendes (1952).

Synonymy list

Year	Name and author
1935	Pseudocorbula anceps Reed p. 34 figs. Pl 1, figs 1-3
1935	Pseudocorbula subtriangularis Reed p. 35 figs. Pl 1, fig 4
1944	Pseudocorbula anceps Mendes
1944	Pseudocorbula camaquensis Mendes
1944	Pseudocorbula subtriangularis Mendes
1944	Pseudocorbula triangularis Mendes
1952	Cowperesia anceps Mendes

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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)
infraclass	Heteroconchia	(Gray 1854)

Rank	Name	Author
—	Cardiomorphi	Ferussac 1822
—	Cardioni	Ferussac 1822
—	Cardiidia	Ferussac 1822
—	Poromyata	Ridewood 1903
order	Pholadomyida	()
superfamily	Edmondioidea	()
family	Pachydomidae	Fischer 1887
subfamily	Pachydominae	Fischer 1887
tribe	Plesiocyprinellini	Simoes 1997
genus	Cowperesia
species	anceps	()

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.

†Cowperesia anceps Reed 1935

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Invalid names: Pseudocorbula camaquensis Mendes 1944 [synonym], Pseudocorbula subtriangularis Reed 1935 [synonym], Pseudocorbula triangularis Mendes 1944 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitec

Locomotion:

facultatively mobileo

Life habit:

infaunalo

Diet:

suspension feedero

Vision:

blindc

Created:

2004-02-28 12:37:17

Modified:

2004-02-28 14:37:17

Source: o = order, c = class

Reference: Aberhan et al. 2004

Age range: base of the Wordian to the top of the Wuchiapingian or 266.90000 to 254.17000 Ma

Collections (14 total)

Time interval	Ma	Country or state	Original ID and collection number
Wordian	266.9 - 264.28	Brazil (Santa Catarina)	Pseudocorbula anceps, Pseudocorbula subtriangularis (209018)
Wordian - Wuchiapingian	266.9 - 254.17	Brazil (São Paulo)	Cowperesia anceps (10177 10178 10179)
Capitanian - Wuchiapingian	264.28 - 254.17	Brazil (São Paulo)	Cowperesia anceps (206327 206336 206352 206353 206360 206362 206363 206364) Pseudocorbula camaquensis, Pseudocorbula anceps, Pseudocorbula subtriangularis (206337) Pseudocorbula triangularis, Pseudocorbula anceps, Pseudocorbula subtriangularis (206338)