Nonion boueanum (d’Orbigny, 1846)
publication ID |
https://doi.org/ 10.5252/g2010n3a5 |
persistent identifier |
https://treatment.plazi.org/id/C26D675C-5C74-4D75-6EF6-FE6BFDCDF93C |
treatment provided by |
Felipe |
scientific name |
Nonion boueanum (d’Orbigny, 1846) |
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Nonion boueanum (d’Orbigny, 1846) View in CoL ( Fig. 3 View FIG K-M)
Nonionina boueana d’Orbigny, 1846: 108 View in CoL , pl. 5, figs 11, 12.
Nonion boueanum View in CoL – Cushman 1939: 12, pl. 3, figs 7, 8. — Poignant 1997: 82, pl. 3, fig. 5; 1999: 150, pl. 3, fig. 9. — Cahuzac & Poignant 2000: 280, 284, figs 7, 11.
Florilus boueanus – Poignant & Pujol 1978: 680, pl. 9, fig. 2.
? Florilus boueanum – AGIP Mineraria 1982: pl. 20, fig. 9.
Hanzawaia boueana – Gebhardt 1994: pl. 13, figs 15, 16.
TYPE MATERIAL. — Lectotype here designated ( MNHN FO 94 About MNHN , d’Orbigny collection).
TYPE LOCALITY. — Nussdorf ( Austria).
OTHER MATERIAL EXAMINED. — Several specimens from Soos and Baden, collected par Grill, Schlumberger, and Poignant and deposited in the MNHN collections; several specimens from Burdigalian, Langhian and Serravalian localities in Aquitaine ( France) also deposited in the MNHN collections.
DIAGNOSIS
“Coquille ovale, comprimée, lisse, anguleuse au pourtour, formée de douze loges étroites, très arquées, convexes, réunies au centre autour d’une dépression ombilicale assez large. La dernière loge, plane en dessus, représente la forme d’un fer de lance en avant. Ouverture très petite” (d’Orbigny 1846).
FIXATION AND DESCRIPTION OF THE LECTOTYPE This species was described by d’Orbigny on material from Nussdorf. The mount labelled “ Nonionina boueana d’Orb.,Nussdorf , Vienne ” bearing the number MNHN FO 94 in the French collection includes one specimen, glued on a thin glass plate, and a glue mark.
This leads us to assume that d’Orbigny’s original description was probably based on several specimens.The specimen of mount MNHN FO94 closely resembles the one figured by d’Orbigny in 1846 (pl. 5, fig. 11) and might be the same specimen. As the specimen chosen by Papp & Schmid as lectotype of Nonionina boueana does not belong to the syntypic material, it looses this status ( ICZN 1999: article 74.2). Consequently, we designate as lectotype of N. boueana the specimen of mount MNHN FO 94 ( Fig. 3M View FIG ) held in the French d’Orbigny collection.
Description
Test subcircular (max. diameter: 596 µm, min. diameter: 564 µm), planispiral, completely involute, bilaterally symmetrical, umbilical area depressed and filled with pustules. Periphery subacute and slightly lobulate in the later portion of the test. Chambers distinct, 12 in the final whorl, increasing gradually in size and more and more elongate from the early part to the later part. Sutures curved, limbate, depressed near the umbilical areas. Aperture small at the base of the apertural area. Some chambers are damaged by a small fracture, which nevertheless does not blind the main characteristics of the species.
ADDITIONNAL OBSERVATIONS
We have observed topotypic material from the Vienna Basin (Nussdorf) selected by Schlumberger in the sands of the d’Orbigny’s collection, specimens collected at Soos (Baden) by Grill and deposited in the MNHN collection, as well as other specimens collected by one of us (Poignant) in the outcrops of Baden. All of them agree with the above description. Additionnal examination by SEM shows that the whole test is perforate except the sutures which are glassy and become deeply incised and filled in the proximal part with some pustules ( Fig. 3K View FIG ).
STRATIGRAPHICAL DISTRIBUTION
Nonion boueanum View in CoL was reported by d’Orbigny (1846) and Cushman (1939) only in the Badenian. According to Poignant and coauthors ( Poignant 1997; Poignant & Pujol 1978; Cahuzac & Poignant 1996, 2000, 2002; Cahuzac et al. 1999) this species seems to appear in the early Burdigalian, and is still present in the Serravallian of Aquitaine (SW France).
MNHN |
Museum National d'Histoire Naturelle |
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Nonion boueanum (d’Orbigny, 1846)
Vénec-Peyré, Marie-Thérèse & Poignant, Armelle 2010 |
Florilus boueanus
POIGNANT A. & PUJOL C. 1978: 680 |
Nonion boueanum
CAHUZAC B. & POIGNANT A. 2000: 280 |
POIGNANT A. 1997: 82 |
CUSHMAN J. A. 1939: 12 |