Calcari ad aptici e Saccocoma Formation explained
| Calcari ad aptici e Saccocoma Formation |
| Type: | Group |
| Age: | Tithonian, |
| Period: | Tithonian |
| Prilithology: | Limestone and sandstone |
| Otherlithology: | Chert |
| Namedby: | Fabio Galluzzo & Massimo Santantonio (2002) |
| Region: | Marche |
| Country: |  Italy |
| Unitof: | 'Calcari Diasprigni' |
| Thickness: | Up to 30m (100feet) |
| Extent: | Camponocecchio and Genga |
| Location Ts: | Camponocecchio |
| Year Ts: | 1976/1980 |
The Calcari ad aptici e Saccocoma Formation, also known as the Saccocoma Formation (known in English as the Haptic limestones and Saccocoma Formation), is a geologic formation in Camponocecchio, Italy that dates back to the Tithonian (152 Ma) - it was first identified in 1976/1980,[1] [2] and was named in 2002.[3] It was probably a marine shale due to the fossil content.[4] Fossils found there include ammonites, cnidarians and the ichthyosaur Gengasaurus, discovered in 1976.[5] Many of the fossils found in this formation are housed at the Spaelaeo-Palaeontologic Museum in Genga.
Paleofauna
Indeterminate ammonites and cnidarians are known from the formation.
Notes and References
- Fastelli, C. & Nicosia, U. (1980). L'Ittiosauro di Genga (Ancona). In I vertebrati fossili italiani (eds Parisi, G. & Seppi, G.), pp. 95–101. Verona: Catalogo della Mostra.
- De Marinis, G. & Nicosia, U. (2000). L'Ittiosauro di Genga. Castelferretti, Ancona: Cassa di Risparmio di Fabriano e Cupramontana Edizioni, 220 pp.
- Galluzzo, F. & Santantonio, M. (2002). The Sabina Plateau: a new element in the Mesozoic palaeogeography of Central Apennines. Bollettino della Società Geologica Italiana S1, 561–88.
- Web site: Paleo Profile: The Genga Lizard. Scientific American. 9 October 2020.
- Ilaria Paparella . Erin E. Maxwell . Angelo Cipriani . Scilla Roncacè . Michael W. Caldwell . 2017 . The first ophthalmosaurid ichthyosaur from the Upper Jurassic of the Umbrian–Marchean Apennines (Marche, Central Italy) . Geological Magazine . 154 . 4 . 837–858 . 10.1017/S0016756816000455 . 2017GeoM..154..837P . 132955874 .
- G. A. Gill, M. Santantonio, and B. Lathuiliere. (2004). The depth of pelagic deposits in the Tethyan Jurassic and the use of corals: an example from the Apennines. Sedimentary Geology 166:311-334
