PBDB Taxon

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

Actinodonta ramseyensis

Bivalvia - Actinodontida - Cycloconchidae

Taxonomy

Modiolopsis ramseyensis was named by Hicks (1873). Its type specimen is Manchester Museum L10041 and 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 Actinodonta ramseyensis by Carter (1971).

Synonyms

Davidia ornata was named by Hicks (1873). Its type specimen is IGS 24197 and 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 Actinodonta ramseyensis by Carter (1971).
Davidia plana 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 Actinodonta ramseyensis by Carter (1971).
Modiolopsis homfrayi 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 Actinodonta ramseyensis by Carter (1971).
Modiolopsis cambriensis 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 Actinodonta ramseyensis by Carter (1971).

Synonymy list

Year	Name and author
1873	Davidia ornata Hicks p. 49 figs. pl. 5 f. 12
1873	Davidia plana Hicks p. 49 figs. pl. 5 f. 12
1873	Modiolopsis homfrayi Hicks p. 49 figs. pl. 5 f. 16-17
1873	Modiolopsis ramseyensis Hicks p. 49 figs. pl. 5 f. 14
1873	Modiolopsis cambriensis Hicks p. 50 figs. pl. 5 f. 20
1971	Actinodonta ramseyensis Carter pp. 256 - 258 figs. pl. 39 f. 3

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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	Autobranchia	(Groblen 1894)
infraclass	Heteroconchia	(Gray 1854)
—	Cardiomorphi	Ferussac 1822
—	Carditioni	Dall 1889
order	Actinodontida	()
superfamily	Anodontopsoidea	Miller 1889
family	Cycloconchidae	Ulrich 1884
genus	Actinodonta	Philipps 1848
species	ramseyensis	()

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.

†Actinodonta ramseyensis Hicks 1873

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Invalid names: Actinodonta cambriensis Hicks 1873 [synonym], Actinodonta homfrayi Hicks 1873 [synonym], Actinodonta ornata Hicks 1873 [synonym], Actinodonta plana Hicks 1873 [synonym]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitec

Locomotion:

facultatively mobilef

Life habit:

infaunalf

Diet:

suspension feederf

Vision:

blindc

Created:

2009-07-20 12:50:42

Modified:

2009-09-21 16:01:57

Source: f = family, c = class

References: Aberhan et al. 2004, Meyer et al. 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)	Davidia ornata, Davidia plana, Modiolopsis ramseyensis, Modiolopsis homfrayi, Modiolopsis cambriensis (89324)
Whitlandian	473.8 - 470.7	United Kingdom (Wales)	Actinodonta ramseyensis (3713 3714 166752)