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Atira ornatissima

Gastropoda - Turbinidae

Taxonomy
Angaria ornatissima was named by Gabb (1864). It is a 3D body fossil. Its type locality is Texas Flat, which is in a Campanian marginal marine sandstone in the Chico Formation of California. It is the type species of Atira.

It was recombined as Margarita ornatissima by White (1889); it was recombined as Margarites (Atira) ornatissima by Stewart (1927); it was recombined as Atira ornatissima by Squires (2010).

Sister species lacking formal opinion data
A. laevis, A. nebrascensis, A. tricarinata

Synonymy list
YearName and author
1864Angaria ornatissima Gabb p. 121 figs. PI. 20, Fig. 78
1889Margarita ornatissima White p. 475
1927Margarites (Atira) ornatissima Stewart p. 315 figs. Plate XXIV, fig. 1
2010Atira ornatissima Squires pp. 1025 - 1026 fig. 4

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassVetigastropoda(Salvini-Plawen 1980)
superfamilyTrochoidea(Rafinesque 1815)
familyTurbinidaeRafinesque 1815
subfamilyMargaritinaeStoliczka 1868
genusAtira()
speciesornatissima()

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.

†Atira ornatissima Gabb 1864
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Diagnosis
ReferenceDiagnosis
R. L. Squires 2010Atira with shell size medium, spire moderately high, pleural angle moderate, ramp wide and sloped, spiral threads very fine and covering teleoconch, and umbilical angulation without change in ornament.
Measurements
No measurements are available
Composition: aragonitec
Locomotion: actively mobilef
Life habit: epifaunalf
Diet: grazerf
Vision: limitedc
Created: 2009-09-10 08:48:26
Modified: 2009-09-10 10:48:26
Source: f = family, c = class
References: Hendy et al. 2009, Kiessling 2004

Age range: base of the Coniacian to the top of the Middle Campanian or 89.80000 to 72.20000 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Coniacian89.8 - 85.7USA (California) Angaria ornatissima (44232)
Campanian83.6 - 72.2USA (Washington) Atira ornatissima (86868)
Late/Upper Campanian83.6 - 72.2USA (California) Margarites ornatissima (72057 86793 86794 185168 219077 220906)
Middle Campanian83.6 - 72.2USA (California) Angaria ornatissima (72056) Margarites ornatissima (185174)