PBDB Taxon

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

Pterotrigonia (Scabrotrigonia) pustulosa

Bivalvia - Trigoniida - Megatrigoniidae

Taxonomy

Trigonia pustulosa was named by Nagao (1930). It is not a trace fossil.

It was recombined as Pterotrigonia (Acanthotrigonia) pustulosa by Tashiro and Kozai (1982); it was recombined as Pterotrigonia (Scabrotrigonia) pustulosa by Tashiro (1988).

Sister species lacking formal opinion data

P. coihuicoensis, P. eufalensis, P. marionensis, P. longiloba, P. cramei, P. rogersi, P. savagei, P. thomsoni, Scabrotrigonia bartrami, Scabrotrigonia pseudaliformis, Scabrotrigonia undulata

Synonymy list

Year	Name and author
1930	Trigonia pustulosa Nagao p. 17 figs. pl. 3, figs. 9-12
1982	Pterotrigonia (Acanthotrigonia) pustulosa Tashiro and Kozai p. 80
1988	Pterotrigonia (Scabrotrigonia) pustulosa Tashiro p. 288

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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)
infraclass	Heteroconchia	(Gray 1854)
—	Uniomorphi	Gray 1854

Rank	Name	Author
—	Unioni	Gray 1854
—	Unionata	Gray 1854
order	Trigoniida	(Dall 1889)
superfamily	Myophorelloidea	(Kobayashi 1954)
—	Megatrigonioidae	van Hoepen 1929
—	Megatrigoniitae	van Hoepen 1929
family	Megatrigoniidae	van Hoepen 1929
subfamily	Pterotrigoniinae	van Hoepen 1929
genus	Pterotrigonia	van Hoepen 1929
subgenus	Scabrotrigonia	(Dietrich 1933)
species	pustulosa	(Nagao 1930)

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.

†Pterotrigonia (Scabrotrigonia) pustulosa Nagao 1930

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Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragonitec

Entire body:

yess

Adult length:

10 to < 100s

Adult width:

10 to < 100s

Adult height:

10 to < 100s

Folds:

minors

Ribbing:

majors

Spines:

nones

Internal reinforcement:

nones

Locomotion:

facultatively mobileo

Life habit:

infaunalo

Diet:

suspension feedero

Vision:

blindc

Created:

2009-02-28 14:04:31

Modified:

2009-02-28 16:04:31

Source: s = species, o = order, c = class

References: Tashiro and Kozai 1982, Aberhan et al. 2004

Age range: base of the Late/Upper Albian to the top of the Cenomanian or 105.30000 to 93.90000 Ma

Collections (10 total)

Time interval	Ma	Country or state	Original ID and collection number
Albian	113.0 - 100.5	Japan	Pterotrigonia pustulosa (122274 123157)
Late/Upper Albian	105.3 - 99.6	Japan	Pterotrigonia pustulosa (122279 122282 142307)
Cenomanian	100.5 - 93.9	Japan (Kumamoto)	Pterotrigonia pustulosa (39638)
Cenomanian	100.5 - 93.9	Japan (Kochi)	Pterotrigonia pustulosa (39976)
Cenomanian	100.5 - 93.9	Japan	Pterotrigonia pustulosa (69472 87005)
Early/Lower Cenomanian	99.6 - 93.5	Japan	Pterotrigonia pustulosa (123126)