PBDB Taxon

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

Cyrtodonta oboloidea

Bivalvia - Cyrtodontida - Cyrtodontidae

Taxonomy

Palaearca oboloidea was named by Hicks (1873). It is a 3D body fossil. Its type locality is East Side of Ogof Hên, Ramsey Island, which is in a Moridunian coastal mudstone in the Ogof Hen Formation of the United Kingdom.

It was recombined as Cyrtodonta oboloidea by Carter (1971).

Sister species lacking formal opinion data

C. 2 spp., C. alata, C. descriptus, C. dignus, C. expansa, C. faba, C. glabella, C. grattanensis, C. halli, C. obesa, C. obtusa, C. perovalis, C. potteri, C. saffordi, C. securiformis, C. sillimanensis, C. simplex, C. subangulata, C. sulcata

Synonyms

Palaearca hopkinsoni was named by Hicks (1873). It is a 3D body fossil. Its type locality is East Side of Ogof Hên, Ramsey Island, which is in a Moridunian coastal mudstone in the Ogof Hen Formation of the United Kingdom.

It was synonymized subjectively with Cyrtodonta oboloidea by Carter (1971).
Glyptarca lobleyi was named by Hicks (1873). It is a 3D body fossil. Its type locality is East Side of Ogof Hên, Ramsey Island, which is in a Moridunian coastal mudstone in the Ogof Hen Formation of the United Kingdom.

It was synonymized subjectively with Cyrtodonta oboloidea by Carter (1971).

Synonymy list

Year	Name and author
1873	Glyptarca lobleyi Hicks p. 48 figs. pl. 5 f. 5
1873	Palaearca hopkinsoni Hicks p. 48 figs. pl. 5 f. 11
1873	Palaearca oboloidea Hicks p. 48 figs. pl. 5 f. 10
1971	Cyrtodonta oboloidea Carter pp. 255 - 256 figs. pl. 38 f. 7

Is something missing? Join the Paleobiology Database and enter the data

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	Cyrtodontida	Scarlato and Starobogatov 1971
—	Cyrtodontidina	Scarlato and Starobogatov 1971
superfamily	Cyrtodontoidea	(Ulrich 1894)
family	Cyrtodontidae
genus	Cyrtodonta
species	oboloidea	()

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.

†Cyrtodonta oboloidea Hicks 1873

show all | hide all

Invalid names: Cyrtodonta hopkinsoni Hicks 1873 [synonym], Cyrtodonta lobleyi Hicks 1873 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitec

Entire body:

yesg

Adult length:

10 to < 100g

Adult width:

10 to < 100g

Folds:

noneg

Ribbing:

noneg

Spines:

noneg

Internal reinforcement:

noneg

Locomotion:

facultatively mobilef

Life habit:

semi-infaunalf

Diet:

suspension feederf

Vision:

blindc

Created:

2009-06-05 11:39:19

Modified:

2009-06-05 13:39:19

Source: g = genus, f = family, c = class

References: Aberhan et al. 2004, Hendy 2009

Age range: base of the Moridunian to the top of the Whitlandian or 477.10000 to 470.70000 Ma

Collections (4 total)

Time interval	Ma	Country or state	Original ID and collection number
Moridunian	477.1 - 473.8	United Kingdom (Wales)	Palaearca oboloidea, Palaearca hopkinsoni, Glyptarca lobleyi (89324)
Whitlandian	473.8 - 470.7	United Kingdom (Wales)	Cyrtodonta oboloidea (3713 3714 166752)