PBDB Taxon

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

Thracia (Cyathodonta)

Bivalvia - Thraciida - Thraciidae

Taxonomy

Cyathodonta was named by Conrad (1849) [Sepkoski's age data: T Eo-u R Sepkoski's reference number: 814]. It is extant.

It was reranked as Thracia (Cyathodonta) by Willett (1937), Mansfield (1940) and Mandic and Steininger (2003).

It was assigned to Thraciidae by Vokes (1980) and Woodring (1982); to Pholadomyoida by Sepkoski (2002); and to Thracia by Willett (1937), Mansfield (1940) and Mandic and Steininger (2003).

Subtaxa

Cyathodonta dolicha, Cyathodonta dubiosa, Cyathodonta gatunensis, Cyathodonta guadelupensis, Cyathodonta pedroana, Cyathodonta spenceri, Cyathodonta tristani, Cyathodonta undulata, Cyathodonta weaveri, Thracia (Cyathodonta) taylorensis

Species lacking formal opinion data

Cyathodonta magnifica, Thracia curtensata, Thracia inflata, Thracia inflata, Thracia keuperina, Thracia lens, Thracia phasaeolina, Thracia phillipsi, Thracia staufti, Thracia tristana, Thracia watanabei

Synonymy list

Year	Name and author
1849	Cyathodonta Conrad
1937	Thracia (Cyathodonta) Willett p. 387
1940	Thracia (Cyathodonta) Mansfield p. 187
1980	Cyathodonta Vokes pp. 209, 210
1982	Cyathodonta Woodring p. 721
2002	Cyathodonta Sepkoski
2003	Thracia (Cyathodonta) Mandic and Steininger p. 280

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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	Heteroconchia	(Gray 1854)
—	Cardiomorphi	Ferussac 1822
—	Cardioni	Ferussac 1822
—	Cardiidia	Ferussac 1822
—	Poromyata	Ridewood 1903
order	Thraciida
superfamily	Thracioidea	Stoliczka 1870
family	Thraciidae	Stoliczka 1870
genus	Thracia	Blainville 1824
subgenus	Cyathodonta	(Conrad 1849)

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.

Subg. Thracia (Cyathodonta) Conrad 1849

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†Cyathodonta dolicha Woodring 1982

Cyathodonta dubiosa Dall 1915

†Cyathodonta gatunensis Toula 1909

†Cyathodonta guadelupensis Dall 1903

Cyathodonta pedroana Dall 1915

†Cyathodonta spenceri Dall 1903

†Cyathodonta tristani Olsson 1922

Cyathodonta undulata Conrad 1849

†Cyathodonta weaveri Clark 1918

†Thracia (Cyathodonta) taylorensis Mansfield 1940

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitec

Locomotion:

facultatively mobileg

Life habit:

infaunalg

Diet:

suspension feederg

Vision:

blindc

Comments:

LIFE HISTORY: IS, MA, UN, SU according to Todd (2001).g

Created:

2009-09-09 08:00:13

Modified:

2009-09-09 15:43:48

Source: g = genus, c = class

References: Aberhan et al. 2004, Sanchez Roig 1926

Age range

Maximum range based only on fossils: base of the Late/Upper Oligocene to the top of the Late/Upper Pleistocene or 28.40000 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 28.1 Ma

Collections (41 total)

Time interval	Ma	Country or state	Original ID and collection number
Rupelian	33.9 - 28.1	USA (Mississippi)	Thracia taylorensis (169205)
Late/Upper Oligocene	28.4 - 23.03	USA (California)	Cyathodonta weaveri (122273)
Chattian	28.1 - 23.03	Panama	Cyathodonta dolicha (42558)
Aquitanian	23.03 - 20.44	Panama	Cyathodonta gatunensis (42607 42609 49492)
Early/Lower Miocene	23.03 - 15.97	Puerto Rico	Cyathodonta reedsi (80205)
Burdigalian	20.44 - 15.97	Austria	Thracia eggenburgensis (77404)
Middle Miocene	15.97 - 11.608	Panama	Cyathodonta gatunensis (93049)
Middle Miocene	15.97 - 11.608	Puerto Rico	Cyathodonta reedsi (80243 80245 80287)
Badenian	13.65 - 12.7	Poland	Cyathodonta eggenburgensis (51687)
Tortonian	11.62 - 7.246	Panama (Colon)	Cyathodonta dolicha (145281) Cyathodonta sp. (79984)
Tortonian	11.62 - 7.246	Venezuela	Cyathodonta gatunensis (130981)
Tortonian	11.62 - 7.246	Panama	Cyathodonta dolicha (93163)
Late/Upper Miocene	11.608 - 5.333	Colombia	Cyathodonta gatunensis (131220)
Messinian	7.246 - 5.333	Panama	Cyathodonta gatunensis (60691)
Early/Lower Pliocene	5.333 - 3.6	Venezuela (Sucre)	Cyathodonta tristani (41555 41570)
Early/Lower Pliocene	5.333 - 3.6	USA (California)	Cyathodonta undulata (96542 96545)
Zanclean	5.333 - 3.6	USA (South Carolina)	Cyathodonta dalli (60940)
Pliocene	5.333 - 2.588	Costa Rica	Thracia tristani (134678)
Late/Upper Pliocene	3.6 - 2.588	Venezuela	Cyathodonta magnifica (131218) Cyathodonta semirugosa (131210)
Late/Upper Pliocene	3.6 - 2.588	USA (Florida)	Thracia sp. (79797)
Early/Lower Pleistocene	2.588 - 0.781	Costa Rica	Thracia dubiosa, Thracia undulata (66777)
Early/Lower Pleistocene	2.588 - 0.781	Ecuador (Manabi)	Cyathodonta sp. (48664)
Early/Lower Pleistocene	2.588 - 0.781	USA (Florida)	Thracia tristana (41202)
Pleistocene	2.588 - 0.0117	Costa Rica	Cyathodonta undulata (135044)
Middle Pleistocene	0.774 - 0.129	USA (Florida)	Cyathodonta semirugosa (67069)
Middle Pleistocene	0.774 - 0.129	USA (California)	Cyathodonta pedroana (71053 138723 202644) Thracia undulata (96894)
Late/Upper Pleistocene	0.129 - 0.0117	USA (California)	Cyathodonta undulata (160361 219029) Thracia undulata (59063)
Late/Upper Pleistocene	0.129 - 0.0117	Mexico (Sonora)	Cyathodonta sp. (44963)