Acanthochitona sp.

Dell’Angelo, Bruno, Sosso, Maurizio & Taviani, Marco, 2025, The Cenozoic European Polyplacophora (Mollusca), Zootaxa 5704 (1), pp. 1-377 : 304

publication ID	https://doi.org/10.11646/zootaxa.5704.1.1
publication LSID	lsid:zoobank.org:pub:747DFE8B-156A-493A-8817-5F861C4D6319
persistent identifier	https://treatment.plazi.org/id/03FEF726-FEC0-4F3F-0FAD-FB82685490B3
treatment provided by	Plazi
scientific name	Acanthochitona sp.
status

Treatment

Acanthochitona sp. Dell’Angelo, Lesport, Cluzaud & Sosso 2020

Fig. 154R View FIGURE 154

Acanthochitona sp. Dell’Angelo, Lesport, Cluzaud & Sosso 2020b, p. 41, fig. 26.

Remarks. We own a single intermediate valve (width 2.5 mm) from the Miocene (Burdigalian) of Gamachot ( France), ( Fig. 154R View FIGURE 154 ); the valve is characterized by the apex just outlined, not prominent, the posterior margin almost straight, the large jugal area strongly longitudinally striated with the anterior margin convex, the high height/ width ratio, the large roundish to elliptical granules, and the large apophyses. These characters do not agree with known Acanthochitona spp. (tab. 20), but the scant available material does not permit an in-depth evaluation of its taxonomic status behind the genus.

References

Figures

FIGURE 154. Problematic species assignment. A. Leptochiton sp. Dell’Angelo, Garilli, Germanà, Reitano, Sosso & Bonfitto, 2012, Altavilla Milicia (Italy), Pliocene, BD 254, intermediate valve, width 4.5 mm, dorsal view (from Dell’Angelo et al. 2012: fig. 3E). B. Leptochiton sp. Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013, Garlenda (Italy), Pliocene (Zanclean), MZB 45704, head valve, width 2 mm, dorsal view (from Dell’Angelo et al. 2013: pl. 3, fig. A). C. Leptochiton sp. Dell’Angelo, Landau, Van Dingenen & Ceulemans 2018, Saint-Clément-de-la-Place (France), Miocene (Tortonian), MNHN.F.A67067, intermediate valve, width 1.7 mm, dorsal view (from Dell’Angelo et al. 2018b: fig. 6A). D. Leptochiton sp., Gamachot (France), lower Miocene, BD, tail valve, width 1.9 mm, dorsal view (from Dell’Angelo et al. 2018a: fig. 3M, as Leptochiton cf. L. josei Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013). E. Leptochiton sp., Rocco di Passerano (Italy), lower Miocene, MZB 32014, head valve, width 4.3 mm (from Dell’Angelo et al. 2015: pl. 3, fig. 12, as Leptochiton salicensis Dell’Angelo & Bonfitto, 2005). F. Leptochiton sp., Borelli (Italy), Miocene (Tortonian), MZB 32015, tail valve, width 2.1 mm, (from Dell’Angelo et al. 2015: pl. 3, fig. 15, as Leptochiton salicensis Dell’Angelo & Bonfitto, 2005). G. Hanleya sp. Dell’Angelo, Landau & Marquet, 2004, Estepona, Velerin Antena (Spain), Pliocene, BD, tail valve, width 4.3 mm, dorsal view (from Dell’Angelo et al. 2004: pl. 3, fig. 1). H. Ischnochiton? sp. Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013, Caranchi (Italy), Pliocene (Zanclean), MZB 45717, tail valve, width 2 mm, dorsal view (from Dell’Angelo et al. 2013: pl. 4, fig. N). I. Stenosemus sp., Moulin Pochas (France), upper Miocene, PR, head valve, width 4 mm, dorsal view [from Dell’Angelo et al. 2018a: fig. 6D, as Stenosemus dolii (Van Belle & Dell’Angelo, 1998)]. J–K. Callochiton sp. Dell’Angelo, Sosso, Prudenza & Bonfitto, 2013, Rio S. Antonino (Italy), MZB 45727, tail valve, width 3.2 mm, dorsal (J) and lateral (K) views (from Dell’Angelo et al. 2013: pl. 5, figs Q–R). L–M. Rhyssoplax sp., Abesse (France), upper Oligocene, DA, intermediate valve, width 1.4 mm, dorsal (L) and frontal (M) views

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Taxonomy

Kingdom	Animalia
Phylum	Mollusca
Class	Polyplacophora
Order	Chitonida
Family	Acanthochitonidae
Genus	Acanthochitona