Eosipho hoernesi
Creators
- 1. Swedish Museum of Natural History, Department of Palaeobiology, Box 50007, 10405 Stockholm, Sweden.
- 2. Museo Civico di Scienze Naturali, 51, Via Medaglie D'Oro 51, 48018 Faenza, Italy.
- 3. Institute of Marine Sciences, Italian National Research Council, Via Gobetti 101, 40129 Bologna, Italy; and Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy.
Description
Eosipho hoernesi (Bellardi, 1873)
Fig. 7A–C
Chrysodomus Hörnesi Bellardi, 1873: 153, pl. 11 figs 14–15.
Neptunea (Neptunea) hoernesi (Bellardi) subdilatata Moroni, 1966: 76, pl. 19 fig. 1.
Eosipho hoernesi – Brunetti & Della Bella 2016: fig. 19f. — Kovács 2021: 72, figs 22–23. — Kaim 2022: 332.
Material examinedITALY – Emilia-Romagna • 1 spec.; Ca’ Piantè; MSF 1070 (H = 54.7 mm) • 1 spec.; Ca’ Rovereti; NRM Mo 204839 (H = 45.8 mm).
RemarksThis species was originally placed in Neptunea Röding, 1798 or its synonym Chrysodomus Swainson, 1840, but Harzhauser et al. (2014) regarded it as not belonging to this genus. Both Brunetti & Della Bella (2016) and Kovács (2021) placed it in Eosipho, and this treatment is followed here. Moroni (1966) introduced a new subspecies – Neptunea hoernesi subdilatata – for a buccinid from the Calcari a Lucina deposits. We find our specimens difficult to distinguish from Bellardi’s (1873: pl. 11 fig. 14) original illustration of Chrysodomus hoernesi, though his “Varietá A” (Bellardi 1873: pl. 11 fig. 15) does have less convex whorls with a shallower suture. Brunetti & Della Bella (2016: fig. 19f) illustrated a specimen of Chrysodomus hoernesi from the Bellardi-Sacco collection, which differs marginally by its slightly broader last whorl from the Calcari a Lucina specimens available to us. A specimen identified as Eosipho hoernesi from the Middle Miocene of Romania (Kovács 2021: figs 22–23) has a distinctly higher spire and more oblique axial ribs than the Italian specimens assigned to this species. Buccinoid species are known to show variation in shell shape, especially the height of the spire, along depth gradients (Bouchet & Warén 1985; Olabarria & Thurston 2003). Hence, we are not in favor of distinguishing subspecies or variants among Eosipho hoernesi.
A similar species is Siphonalia (Pseudoneptunea) semisulcata Martin in Beets (1942: pl. 28 fig. 68) from a presumed, Late Miocene seep deposit in Buton, Indonesia, but its spirals are less distinct on the whorls’ flanks but stronger on the base than in E. hoernesi. Neptunea (Sipho ?) altenai Beets, 1942, from the same locality also has very similar axial and spiral sculpture, but a much short siphonal canal than E. hoernesi. The late Eocene to Oligocene Colus sekiuensis Kiel & Goedert, 2007, from organic substrates and seep deposits in western Washington State, USA (Kiel & Goedert 2007), has similar though more incised sculpture, is smaller, and its siphonal canal is more strongly twisted than that of E. hoernesi.
Stratigraphic and geographic rangeMiddle to Upper Miocene, northern Italy.
Notes
Files
Files
(3.3 kB)
Name | Size | Download all |
---|---|---|
md5:8084495b7a7cb12d59cb8aa5de2f7cbd
|
3.3 kB | Download |
System files
(26.7 kB)
Name | Size | Download all |
---|---|---|
md5:2d30b7babd8f3c0de01cb76103f05d5d
|
26.7 kB | Download |
Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- MSF , NRM
- Family
- Eosiphonidae
- Genus
- Eosipho
- Kingdom
- Animalia
- Material sample ID
- MSF 1070 , NRM Mo 204839
- Order
- Neogastropoda
- Phylum
- Mollusca
- Scientific name authorship
- Bellardi
- Species
- hoernesi
- Taxon rank
- species
- Taxonomic concept label
- Eosipho hoernesi (Bellardi, 1873) sec. Kiel, Sami & Taviani, 2023
References
- Bellardi L. 1873. I Molluschi dei Terreni Terziari del Piemonte e della Liguria, Parte I. Cephalopoda, Pteropoda, Heteropoda, Gastropoda (Muricidae et Tritonidae). Stamperia Reale, Torino. https: // doi. org / 10.5962 / bhl. title. 12269
- Moroni M. A. 1966. Malacofauna del " Calcare a Lucine " di S. Sofia - Forli. Palaeontographica Italica 60: 69 - 87.
- Brunetti M. M. & Della Bella G. 2016. Revisioni di alcuni generi della famiglia Buccinidae Rafinesque, 1815 nel Plio-Pleistocene del Bacino Mediterraneo, con descrizione di tre nuove specie. Bolletino Malacologico 52: 3 - 37.
- Kovacs Z. 2021. Middle Miocene Buccinoidea (Neogastropoda) assemblage from the Faget Basin (Romania) in the collection of the Hungarian Natural History Museum, Budapest. Fragmenta Palaeontologica Hungarica 37: 65 - 99. https: // doi. org / 10.17111 / FragmPalHung. 2021.37.65
- Kaim A. 2022. A review of gastropods at ancient hydrocarbon seeps. In: Kaim A., Landman N. H. & Cochran J. K. (eds) Ancient Hydrocarbon Seeps. Topics in Geobiology: 323 - 374. Springer, Cham. https: // doi. org / 10.1007 / 978 - 3 - 031 - 05623 - 9 _ 11
- Harzhauser M., Landau B., Mandic O., Kroh A., Kuttelwascher K., Grunert P., Schneider S. & Danninger W. 2014. Gastropods of an Ottnangian (Early Miocene) rocky shore in the North Alpine Foreland Basin (Allerding, Austria). Jahrbuch der Geologischen Bundesanstalt 154: 83 - 113.
- Bouchet P. & Waren A. 1985. Revision of the northeast Atlantic bathyal and abyssal Neogastropoda excluding Turridae (Mollusca, Gastropoda). Bolletino Malacologico, Supplemento 1: 123 - 296. https: // doi. org / 10.5962 / bhl. title. 140763
- Olabarria C. & Thurston M. H. 2003. Patterns of morphological variation of the deep-sea gastropod Troschelia berniciensis (King, 1846) (Buccinidae) from the Northeastern Atlantic Ocean. Journal of Molluscan Studies 70: 59 - 66. https: // doi. org / 10.1093 / mollus / 70.1.59
- Beets C. 1942. Beitrage zur Kenntnis der angeblich oberoligocanen Mollusken-Fauna der Insel Buton, Niederlandisch-Ostindien. Leidsche Geologische Mededeelingen 13: 255 - 328.
- Kiel S. & Goedert J. L. 2007. Six new mollusk species associated with biogenic substrates in Cenozoic deep-water sediments in Washington State, USA. Acta Palaeontologica Polonica 52: 41 - 52.