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Gigantostrea trigonalis

Bivalvia - Ostreida - Gryphaeidae

Taxonomy
Ostrea trigonalis was named by Conrad (1854) [DISTRIBUTION: Eocene; Gulf Coast.]. It is a 3D body fossil. Its type locality is Jackson, which is in an Eocene coastal horizon in Mississippi.

It was recombined as Gigantostrea trigonalis by Palmer and Brann (1965).

Sister species lacking formal opinion data
G. mackayi

Synonymy list
YearName and author
1854Ostrea trigonalis Conrad p. 289 figs. pl. 14, fig. 10
1856Ostrea trigonalis Conrad p. 259
1904Ostrea trigonalis Glenn p. 380
1965Gigantostrea trigonalis Palmer and Brann p. 149
1982Ostrea trigonalis Woodring p. 606

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
RankNameAuthor
—OstreomorphiFerussac 1822
—OstreioniFerussac 1822
—OstreataFerussac 1822
superorderOstreiformiiFerussac 1822
orderOstreida(Fërussac 1822)
suborderOstreidina(Ferussac 1822)
superfamilyOstreoidea(Rafinesque 1815)
familyGryphaeidaeVialov 1936
subfamilyPycnodonteinaeStenzel 1959
genusGigantostrea(Sacco 1897)
speciestrigonalis()

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.

†Gigantostrea trigonalis Conrad 1854
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitef
Environment: marine, brackisho
Locomotion: stationaryf
Attached: yesf
Life habit: epifaunalf
Diet: suspension feederf
Vision: blindc
Created: 2007-09-26 08:05:58
Modified: 2009-08-18 19:34:53
Source: f = family, o = order, c = class
References: Steuber 2002, Kiessling 2004, Aberhan et al. 2004

Age range: base of the Bartonian to the top of the Burdigalian or 41.30000 to 15.97000 Ma

Collections (35 total)


Time interval Ma Country or state Original ID and collection number
Middle Eocene47.8 - 37.71USA (North Carolina) Ostrea trigonalis (41823 41922 41923 41926 41928 41929 41941 41979)
Bartonian41.3 - 38.0USA (Mississippi) Gigantostrea trigonalis (3532 3533)
Bartonian41.3 - 38.0USA (Louisiana) Gigantostrea trigonalis (3534)
Bartonian41.3 - 38.0USA (North Carolina) Gigantostrea trigonalis (5366) Ostrea trigonalis (5436 5437 41822)
Bartonian41.3 - 38.0USA (Alabama) Gigantostrea trigonalis (3503 3504 3505) Ostrea trigonalis (133042)
Priabonian38.0 - 33.9USA (Mississippi) Ostrea trigonalis (45635)
Priabonian38.0 - 33.9USA (South Carolina) Gigantostrea trigonalis (5363)
Priabonian38.0 - 33.9USA (Florida) Gigantostrea trigonalis (3572)
Priabonian38.0 - 33.9USA (Alabama) Gigantostrea trigonalis (3541 3542 3545 3548 3557)
Late/Upper Eocene37.2 - 33.9USA (Mississippi) Ostrea trigonalis (208935)
Late/Upper Eocene37.2 - 33.9USA (South Carolina) Ostrea trigonalis (92433 92434)
Rupelian33.9 - 28.1USA (South Carolina) Ostrea trigonalis (45500)
Burdigalian20.44 - 15.97USA (Florida) Ostrea trigonalis (42379 42424 42425 42426)