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Yaadia tryoniana

Bivalvia - Trigoniida - Steinmanellidae

Taxonomy
Trigonia tryoniana was named by Gabb (1864). It is not extant. Its type specimen is UCMP 11955. Its type locality is "Chico beds" - Tuscan Springs, Tehama, which is in a Coniacian coastal siliciclastic in California.

It was recombined as Yaadia tryoniana by Cox (1952), Saul (1978).

Synonymy list
YearName and author
1864Trigonia tryoniana Gabb p. 188 figs. PL 25, Fig. 176
1900Trigonia tryoniana Gabb
1921Trigonia tryoniana Packard p. 19 figs. Plate 4, Figure 4
1952Yaadia tryoniana Cox
1978Yaadia tryoniana Saul pp. 45 - 47 figs. pl. 8, figs. 2 - 7; Pl. 9, fig. 1; text fig 17, table 9

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
subclassAutobranchia(Groblen 1894)
RankNameAuthor
infraclassHeteroconchia(Gray 1854)
—UniomorphiGray 1854
—UnioniGray 1854
—UnionataGray 1854
orderTrigoniida(Dall 1889)
superfamilyMyophorelloidea(Kobayashi 1954)
familySteinmanellidaeCooper 1991
subfamilyYaadiinae
genusYaadiaCrickmay 1930
speciestryoniana()

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.

†Yaadia tryoniana Gabb 1864
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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 Coniacian to the top of the Middle Campanian or 89.80000 to 72.20000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Coniacian89.8 - 85.7USA (California) Trigonia tryoniana (44232)
Early/Lower Campanian83.6 - 72.2USA (California) Trigonia leana (239772)
Middle Campanian83.6 - 72.2USA (California) Yaadia tryoniana (144780 185156 220918)