Published December 11, 2023 | Version v1
Taxonomic treatment Open

Channelaxinus Valentich-Scott & Coan 2012

  • 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

Channelaxinus ? sp.

Fig. 9D–E

Material examined

ITALY – Emilia-Romagna • 1 spec.; Caselle A; NRM Mo 204840 (L = 20 mm).

Description

Moderately inflated shell; umbones elevated, small, pointed, prosogyrate; posterior sulcus very close to posterodorsal margin, deep, bordered by sharp ridge; two faint, posterodorsal ridges.

Remarks

With its sharp posterior ridge and groove, and the faint, radial posterodorsal ridge, this specimen resembles Channelaxinus sp. from the Middle Miocene Ca’ Cavalmagra seep deposit (Kiel & Taviani 2017: 450, fig. 5), and is hence tentatively place in Channelaxinus. With about 20 mm in length Channelaxinus sp. is notably larger than Thyasira sp. 1 and 2 reported above.

Stratigraphic and geographic range

Middle Miocene, northern Italy.

Notes

Published as part of Kiel, Steffen, Sami, Marco & Taviani, Marco, 2023, Mollusks (Gastropoda, Bivalvia) from Miocene cold-seep deposits in northern Italy: revisions and additions, pp. 115-160 in European Journal of Taxonomy 910 on page 142, DOI: 10.5852/ejt.2023.910.2365, http://zenodo.org/record/10350702

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Linked records

Additional details

Biodiversity

Collection code
NRM
Family
Thyasiridae
Genus
Channelaxinus
Kingdom
Animalia
Order
Lucinida
Phylum
Mollusca
Scientific name authorship
Valentich-Scott & Coan
Taxon rank
genus
Taxonomic concept label
Channelaxinus Valentich-Scott, 2012 sec. Kiel, Sami & Taviani, 2023

References

  • Kiel S. & Taviani M. 2017. Chemosymbiotic bivalves from Miocene methane-seep carbonates in Italy. Journal of Paleontology 91: 444 - 466. https: // doi. org / 10.1017 / jpa. 2016.154