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Auricullina granulosa

Helcionelloida - Helcionellidae

Taxonomy
Auricullina granulosa was named by Parkhaev (2006). Its type specimen is PIN, no. 4664/1640, a shell, and it is a 3D body fossil. Its type locality is SYC-101 201.45 m, which is in a Botomian carbonate packstone/wackestone in the Parara Formation of Australia.

Synonymy list
YearName and author
2006Auricullina granulosa Parkhaev pp. 21 - 22 figs. pl. 4 f. 1-2

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
RankNameAuthor
phylumMollusca
classHelcionelloidaPeel 1991
familyHelcionellidae
genusAuricullina
speciesgranulosa

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.

Auricullina granulosa Parkhaev 2006
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Diagnosis
ReferenceDiagnosis
P. Yu. Parkhaev 2006The shell is cap-shaped, evenly and rapidly expanding from the apex towards the aperture, wide (about 0.77 times as wide as long), and rather low (about twice as long as high). The apex is pointed, shifted backwards to extend beyond the posterior shell edge for a distance of one-sixth of the shell length, and slightly bent downwards. The anterior field of the shell is evenly convex and flattens towards the aperture, the lateral fields are slightly convex, the posterior field is short and slightly concave. The aperture is simple, without sinus, widely egg-shaped, with widely rounded anterior and slightly extended posterior margins. The outer ornamentation of the shell is unknown. The protoconch is unknown. The surface of the internal mold has granulated microornamentation represented by small cylindrical granules, about 15 μm in diameter and up to 20 μm long. The axes of the granules are perpendicular to the surface of the mold. The granules may occasionally accumulate in the apical area of the mold (Pl. 4, fig. 2e).
Measurements
No measurements are available
Composition: aragonitec
Entire body: yesf
Adult length: 1.0 to < 10f
Environment: marinec
Locomotion: slow-movingf
Life habit: low-level epifaunalf
Diet: detritivoref
Vision: limitedc
Created: 2009-06-11 17:55:39
Modified: 2009-10-09 12:02:54
Source: f = family, c = class
References: Hendy 2009, Hendy et al. 2009

Age range: Botomian or 516.00000 to 512.10000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Botomian516.0 - 512.1Australia (South Australia) Auricullina granulosa (type locality: 97730)