PBDB Taxon

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Morphology	Ecology and taphonomy	External Literature Search	Age range and collections

Merismopteria imbricata

Bivalvia - Ostreida - Pterineidae

Taxonomy

Modiolopsis imbricata was named by Dana (1847). Its type specimen is USNM 3641 and is a 3D body fossil. Its type locality is Harper's Hill, Hunter Valley (USNM coll), which is in a Sakmarian marine limestone in the Allandale Formation of Australia.

It was recombined as Cypricardia imbricata by Dana (1849); it was recombined as Merismopteria imbricata by Etheridge (1919), Waterhouse (1988).

Sister species lacking formal opinion data

M. carrandibbiensis

Synonyms

Modiolopsis arcodes was named by Dana (1847). Its type specimen is USNM 3646 and is a 3D body fossil. Its type locality is Harper's Hill, Hunter Valley (USNM coll), which is in a Sakmarian marine limestone in the Allandale Formation of Australia.

It was recombined as Cypricardia arcodes by Dana (1849); it was recombined as Merismopteria arcodes by Etheridge (1919); it was synonymized subjectively with Merismopteria imbricata by Waterhouse (1988).
Modiola crassissima was named by M'Coy (1847). It is a 3D body fossil. Its type locality is Harper's Hill, Hunter Valley (W.B. Clarke coll), which is in a Sakmarian coastal sandstone in the Allandale Formation of Australia.

It was synonymized subjectively with Merismopteria imbricata by Waterhouse (1988).

Synonymy list

Year	Name and author
1847	Modiolopsis arcodes Dana p. 159
1847	Modiolopsis imbricata Dana p. 159
1847	Modiola crassissima M'Coy p. 302 figs. Pl 15, figs 2, 3
1849	Cypricardia arcodes Dana p. 702 figs. Pl 8, fig 8
1849	Cypricardia imbricata Dana p. 702 figs. Pl 8, fig 5
1919	Merismopteria arcodes Etheridge Jr. p. 192
1919	Merismopteria imbricata Etheridge Jr. p. 192
1988	Merismopteria imbricata Waterhouse p. 170 figs. Pl 1, figs 4, 6-9, 11

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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
—	Ostreioni	Ferussac 1822
—	Ostreata	Ferussac 1822
superorder	Ostreiformii	Ferussac 1822
order	Ostreida	(Fërussac 1822)
suborder	Malleidina	Gray 1854
family	Pterineidae
genus	Merismopteria
species	imbricata	()

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.

†Merismopteria imbricata Dana 1847

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Invalid names: Modiola crassissima M'Coy 1847 [synonym], Modiolopsis arcodes Dana 1847 [synonym]

Diagnosis

No diagnoses are available

Measurements

part	N	mean	minimum	maximum	median	s.d.
shell height	3	29.0	27.0	30.0	30.0	1.73
valve height	1	40.0	-	-	-	-

Composition:

low Mg calciteo

Entire body:

yesf

Adult length:

10 to < 100f

Adult width:

10 to < 100f

Environment:

marine, brackisho

Locomotion:

stationaryf

Attached:

yesf

Life habit:

epifaunalf

Diet:

suspension feederf

Vision:

blindc

Created:

2009-06-11 18:35:53

Modified:

2009-07-20 15:10:53

Source: f = family, o = order, c = class

References: Aberhan et al. 2004, Hendy 2009, Kiessling 2004

Age range: Sakmarian or 293.52000 to 290.10000 Ma

Collections (2 total)

Time interval	Ma	Country or state	Original ID and collection number
Sakmarian	293.52 - 290.1	Australia (New South Wales)	Modiola crassissima (133748) Modiolopsis imbricata, Modiolopsis arcodes (type locality: 119250)