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Schilderia amygdalum

Gastropoda - Cypraeidae

Taxonomy
Cypraea amygdalum was named by Brocchi (1814) [Lectotype selected by Pinna & Spezia 1978 by inference of holotype, cf. ICZN Art. 74.6. Non 1852 Cypraea amygdalum, – Hoernes, Abhandlungen der Kaiserlich-Königlichen Geologischen Reichsanstalt, 3: pl. 8, figs. 8 a, 8 b [= Apiocypraea sp.]. Non 1880 Cypraea (Aricia) amygdalum, – Hoernes & Auinger, Abhandlungen der K.K. Geologischen Reichsanstalt, 12: 60, pl. 8, figs. 4 a, b, 5 [= Apiocypraea sp.]. Non 2000 Prozonarina (Prozonarina) amygdalum, – Fehse, Club Conchylia Informationen, 32 (1/3): 27, unnumb. text. fig. [= Prozonarina sp.] Non 2004 Schilderia amygdalum, – Dolin & Lozouet, Cossmanniana, 4: 46, pl. 18, figs. 4 a–4 c [= Prozonarina sp.].]. Its type specimen is MCSNM, No. i4646, a shell, and it is a 3D body fossil.

It was recombined as Zonarina amygdalum by Schilder (1932); it was recombined as Apiocypraea amygdalum by Baluk (2006); it was recombined as Schilderia amygdalum by Fehse (2007).

Synonyms
Synonymy list
YearName and author
1814Cypraea amygdalum Brocchi p. 285 figs. pl. 2, figs. 4 a, b
1852Cypraea subamygdalum d'Orbigny
1894Luponia subphysis voeslauensis Sacco p. 42
1924Cypraea (Adusta) subamygdalum Cossmann and Peyrot p. 357–359 figs. Pl. 9, Figs. 22– 23, Pl. 10, Fig. 5
1932Zonarina amygdalum Schilder p. 30
1972Eocypraea (Apiocypraea) voeslauensis Janssen p. 10
1995Apiocypraea subamygdalum Baluk p. 187 figs. Pl. 11, Fig. 4
1995Apiocypraea voeslauensis Baluk p. 188 figs. Pl. 11, Figs 2-3
2002Cypraea (Adusta) subamygdalum Islamoglu and Taner p. 50 figs. pl. 3, f. 8
2006Apiocypraea amygdalum Baluk p. 205
2006Eocypraea (Apiocypraea) voeslauensis Fehse and Grego pp. 159 - 160 figs. Tafel 8, Fig. 3, 4
2007Schilderia amygdalum Fehse pp. 63 - 64 figs. Plate 3, fig. 5; plate 5, fig. 10
2014Apiocypraea subamygdalum Popa et al. pp. 9 - 10 figs. Pl. 2, Fig. 2

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
classGastropoda
subclassCaenogastropoda(Cox 1959)
RankNameAuthor
Sorbeoconcha(Ponder and Lindberg 1997)
Hypsogastropoda(Ponder and Lindberg 1997)
superorderLatrogastropodaRiedel 2000
superfamilyCypraeoidea(Rafinesque 1815)
familyCypraeidaeRafinesque 1815
subfamilyCypraeinaeRafinesque 1815
genusSchilderiaTomlin 1930
speciesamygdalum(Brocchi 1814)

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.

Schilderia amygdalum Brocchi 1814
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Invalid names: Apiocypraea subamygdalum d'Orbigny 1852 [synonym], Apiocypraea voeslauensis Sacco 1894 [synonym]
Diagnosis
ReferenceDiagnosis
D. Fehse 2007Shell medium sized, pyriform, with a produced, indented anterior terminal and a curved and indented posterior terminal. Neither terminal is clearly delimited from the dorsal elevation. Spire involute, just above the bulge of the anal canal, usually obsolete and covered by thick terminal callus, marked by a spiral sulcus. Dorsum convex, with highest elevation at the posterior third and with the apex on the right side, smooth, margins slightly thickened by callus. The marginal callosities are rounded. Ventrum weakly convex. Aperture on ventral mid-portion straight, rapidly curved posteriorly, with parallel edges, relatively narrow, slightly wider along the fossula. Labrum thickened and slightly expanded medially, slightly declivous anteriorly, inner margin sharply edged, bearing 23 fine, close-set, regular labral denticles, which extend anteriorly and posteriorly as short folds onto the ventrum. Parietal lip weakly denticulate, with 17 developed denticles which weaken slightly in the mid-portion and strengthen again slightly on the posterior third. The denticles do not extend as folds onto the columella but do extend onto the fossula within the aperture. Terminal ridge marginal, bordering the siphonal canal, where it is slightly strengthened to form a narrow keel. Columellar teeth follow after a slight interstice. Fossula usually flattened, very steep, not clearly delimited from the rest of the columella, with 7 folds on its surface but with a straight inner edge without denticles. Its anterior border is formed by a continuation of the terminal ridge. The terminal ridge projects here at the anterior corner of the fossula. The anterior margin of the fossula is free, not fused with the inside of the dorsum.
Measurements
No measurements are available
Composition: aragonitec
Locomotion: actively mobilef
Life habit: epifaunalf
Diet: omnivoref
Diet 2: grazerf
Vision: limitedc
Created: 2009-09-10 07:50:11
Modified: 2009-09-10 09:50:11
Source: f = family, c = class
References: Kiessling 2004, Hendy et al. 2009

Age range: base of the Aquitanian to the top of the Tortonian or 23.03000 to 7.24600 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Aquitanian23.03 - 20.44France Apiocypraea subamygdalum (74861)
Burdigalian20.44 - 15.97Italy Apiocypraea subamygdalum (178111) Apiocypraea subamygdalum, Zonarina amygdalum (178108) Zonarina amygdalum (178110)
Langhian15.97 - 13.82Germany Eocypraea voeslauensis (178468)
Langhian15.97 - 13.82Italy Apiocypraea subamygdalum (178112)
Badenian13.65 - 12.7Poland (Holy Cross Mountains) Apiocypraea subamygdalum, Apiocypraea voeslauensis, Apiocypraea amygdalum (38823)
Badenian13.65 - 12.7Romania Apiocypraea subamygdalum (123125)
Tortonian11.62 - 7.246Turkey Cypraea subamygdalum (179777)