Calliotropis undetermined
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
Calliotropis sp.
Fig. 2K–L
Material examined
ITALY – Emilia-Romagna • 1 spec.; Ca’ Piantè; MSF 1076 (W = 23.3 mm).
Description
Base about 20 mm in diameter, rather flat, basal margin sharp, marked by beaded spiral cord, umbilicus about ¼ of base diameter, bordered by smooth callus; base sculptured by three beaded spirals, outermost fine with dense nodes, and two equally strong beaded spirals with widely spaced nodes near umbilicus; aperture subcircular, entire.
Remarks
This fragmentary specimen preserving only the base resembles many fossil and recent species of Calliotropis (i.e., Jansen 1994; Pérez et al. 2022). Calliotropis today is essentially a deep-water genus and most Cenozoic fossil records are also from deep-water strata (Dall 1909; Pérez et al. 2022).
Stratigraphic and geographic range
Upper Miocene, northern Italy.
Notes
Files
Files
(1.3 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:fea88e3af14bf07b63f0ea89f20b4e6a
|
1.3 kB | Download |
System files
(11.4 kB)
| Name | Size | Download all |
|---|---|---|
|
md5:459e664934cdc1a39a531764215efa56
|
11.4 kB | Download |
Linked records
Additional details
Identifiers
Biodiversity
- Collection code
- MSF
- Family
- Eucyclidae
- Genus
- Calliotropis
- Kingdom
- Animalia
- Material sample ID
- MSF 1076
- Order
- Seguenziida
- Phylum
- Mollusca
- Species
- undetermined
- Taxon rank
- species
References
- Jansen P. 1994. Notes on the Australian species of Calliotropis (Gastropoda: Trochidae) with descriptions of four new species. Molluscan Research 15: 43 - 53. https: // doi. org / 10.1080 / 13235818.1994.10673657
- Perez D. E., Ferrari S. M. & Ezcurra M. D. 2022. Phylogenetic analysis of the gastropod genus Calliotropis Seguenza, 1902 (Vetigastropoda: Calliotropidae), including fossil and living species. Journal of Systematic Palaeontology 20: 2100288. https: // doi. org / 10.1080 / 14772019.2022.2100288
- Dall W. H. 1909. Contributions the Tertiary paleontology of the Pacific Coast. I. The Miocene of Astoria and Coos Bay, Oregon. U. S. Geological Survey Professional Paper 59: 1 - 278. https: // doi. org / 10.3133 / pp 59