PBDB Taxon

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

Trigonioides

Bivalvia - Trigoniida - Trigonioididae

Taxonomy

Trigonioides was named by Kobayashi and Suzuki (1936).

It was assigned to Trigonioididae by Cox (1952), Hayami (1975).

Species

T. (Didymotrigonioides), T. (Diversitrigonioides), T. (Wakinoa), T. (Xizangotrigonioides)

Species lacking formal opinion data

T. jaehoi, T. kodairai, T. matsumotoi, T. matsumotoi, T. mifunensis, T. obsoletus, T. paucisulcatus, T. sengokuensis, T. suzukii, T. tetoriensis, T. wakinoensis, T. wakinoensis

Synonymy list

Year	Name and author
1936	Trigonioides Kobayashi and Suzuki
1952	Trigonioides Cox
1975	Trigonioides Hayami

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

Rank	Name	Author
subclass	Autobranchia	(Groblen 1894)
infraclass	Heteroconchia	(Gray 1854)
—	Uniomorphi	Gray 1854
—	Unioni	Gray 1854
—	Unionata	Gray 1854
order	Trigoniida	(Dall 1889)
superfamily	Trigonioidoidea	Cox 1952
family	Trigonioididae
genus	Trigonioides	Kobayashi and Suzuki 1936

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.

G. †Trigonioides Kobayashi and Suzuki 1936

show all | hide all

Subg. †Trigonioides (Didymotrigonioides) Gu 1976

hide

†Trigonioides (Didymotrigonioides) didymoscriptus Gu 1976

Subg. †Trigonioides (Diversitrigonioides) Gu 1976

hide

†Trigonioides (Diversitrigonioides) diversicostatus Hoffet 1937

Subg. †Trigonioides (Wakinoa) Yang 1976

Subg. †Trigonioides (Xizangotrigonioides) Guo 1986

hide

†Trigonioides (Xizangotrigonioides) naquensis Gu 1976

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 12:34:20

Modified:

2004-02-28 14:34:20

Source: o = order, c = class

Reference: Aberhan et al. 2004

Age range: base of the Neocomian to the top of the Cenomanian or 143.10000 to 93.90000 Ma

Collections (29 total)

Time interval	Ma	Country or state	Original ID and collection number
Neocomian	143.1 - 125.77	Japan (Fukuoka)	T. sengokuensis (39579) T. suzukii (40594)
Early/Lower Cretaceous	143.1 - 100.5	Japan (Yamaguchi)	T. obsoletus (40652)
Early/Lower Cretaceous	143.1 - 100.5	China (Guangxi)	T. didymoscriptus (201030)
Early/Lower Cretaceous	143.1 - 100.5	South Korea	T. kodairai (39566 39649 39650 39827)
Early/Lower Cretaceous	143.1 - 100.5	China (Manchuria)	T. kodairai (39968)
Early/Lower Cretaceous	143.1 - 100.5	China (Tibet)	T. naquensis (201031)
Cretaceous	143.1 - 66.0	South Korea	T. paucisulcatus (40033)
Aptian	121.4 - 113.2	China (Guangxi)	Pelecypoda indet. (24901)
Aptian	121.4 - 113.2	Japan (Fukui)	T. sp. (38020) T. tetoriensis (40037)
Late/Upper Aptian - Early/Lower Albian	119.57 - 110.1	South Korea	T. jaehoi (116294)
Late/Upper Aptian - Early/Lower Albian	119.57 - 110.1	South Korea (Gyeongsangnam-do)	T. jaehoi (52858)
Albian	113.2 - 100.5	Niger (Agadez)	T. sp. (28569)
Albian	113.2 - 100.5	Japan	T. sp. (123133 123134 123156 123165)
Cenomanian	100.5 - 93.9	Japan (Kumamoto)	T. matsumotoi (39638) T. mifunensis (40171)
Cenomanian	100.5 - 93.9	Kyrgyzstan (Osh)	T. sp. (58484)
Cenomanian	100.5 - 93.9	Japan	T. matsumotoi (123172 123173) T. sp. (123154 123155 123167)