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Epitonium (Boreoscala) earlturneri

Gastropoda - Epitoniidae

Taxonomy
Epitonium (Boreoscala) earlturneri was named by Durham (1937). Its type specimen is UCMP 30154 and is a 3D body fossil. Its type locality is UCMP A715, which is in a Bartonian marine horizon in the Coaledo Formation of Oregon.

Synonymy list
YearName and author
1937Epitonium (Boreoscala) earlturneri Durham p. 493 figs. Plate 56, figure 9

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classGastropoda
subclassCaenogastropoda(Cox 1959)
superfamilyEpitonioidea(Berry 1910)
familyEpitoniidaeBerry 1910
genusEpitoniumKobelt 1905
subgenusBoreoscala
speciesearlturneri

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.

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Diagnosis
ReferenceDiagnosis
J. W. Durham 1937Holotype (incomplete) large, moder- ately heavy; approximately two well- rounded whorls, including body whorl, remain; sutures rather deep; ornamented by 14 to 16 very prominent, rather close set varices that are strongly reflexed posteriorly so that in a cross-section pro- file they are hook-shaped; at the suture varices are reflexed against those of pre- ceding whorl; spirally ornamented by about 14 prominent rounded threads slightly narrower than corresponding interspaces; for a slight distance below suture, in addition, there are several very fine spiral threads; in interspaces be- tween the larger spirals there are three secondary spiral threads of much finer size; near base of the well-rounded body whorl there is a moderately heavy spiral marking the slight angulation of the basal disk; aperture broadly elliptical.
Measurements
No measurements are available
Composition: aragonitef
Composition 2: low Mg calcitef
Locomotion: slow-movingf
Life habit: low-level epifaunalf
Diet: carnivoref
Vision: limitedc
Created: 2007-02-05 23:13:43
Modified: 2011-09-22 17:20:39
Source: f = family, c = class
References: Beu et al. 1990, Kiessling 2004

Age range: Bartonian or 41.03000 to 37.71000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Bartonian41.03 - 37.71USA (Oregon) Epitonium earlturneri (type locality: 200100)