Fosso de la Fittaia 2013: Tortonian, Italy
collected 2013
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia
- Temnospondyli
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Anura indet.
(Fischer von Waldheim 1813)
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IGF102236: one squamosal, one mandible, one humerus, two femura, ten tibiofibulae, one vertebra, one urostyle, and three indeterminate fragments. | ||||||||||
Amphibia
- Temnospondyli
- Alytidae
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Discoglossinae indet.
Günther 1859
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IGF102233: one fragmentary right ilium; IGF102234: one fragmentary right ilium; IGF102235: three fragmentary right ilia | ||||||||||
Mammalia
- Rodentia
- Gliridae
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Anthracoglis marinoi
Engesser 1983
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four isolated cheek teeth; one M2 (IGF102262) and a lower molar series (m1-m3) belonging to a single individual (IGF102263) | ||||||||||
Mammalia
- Rodentia
- Muridae
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Huerzelerimys oreopitheci
(Engesser 1989)
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One maxillary fragment with an M1 (IGF102266), one fragmentary mandible with an m2 (IGF102267) and seven isolated cheek teeth: one M1 (IGF102268), four M2 (IGF102269, IGF102270, IGF102271, IGF102272), one m1 (IGF102273) and one broken m2 (IGF102274) | ||||||||||
Mammalia
- Lagomorpha
- Ochotonidae
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Paludotona sp.
Dawson 1959
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a single upper molariform tooth (IGF102261) | ||||||||||
Mammalia
- Soricidae
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cf. Lartetium sp.
Ziegler 1989
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IGF102256: upper right incisor; IGF102257: isolated right m1; IGF102258: fragmentary right mandible with m1- m2; IGF102259: fragmentary right mandible with m2; IGF102260: fragmentary right mandible with m2-m3 | ||||||||||
Mammalia
- Bovidae
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Tyrrhenotragus sp.
Thomas 1984
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one isolated lower cheek teeth m1 (or m2) (IGF102275) | ||||||||||
Reptilia
- Testudines
- Testudinidae
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Testudo sp.
Linnaeus 1758
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IGF102237: isolated right ilium; IGF102238: fragmentary cervical vertebra; IGF102239: 24 fragmentary girdle, appendicular or vertebral fragments; IGF102240: six costal fragments, one partial peripheral and 27 shell fragments; IGF102241: one block of sediment hosting several shell and few girdle and appendicular elements; IGF102242: one isolated partial left xiphiplastron. | ||||||||||
Reptilia
- Serpentes
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Serpentes indet.
Linnaeus 1758
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IGF102255: one fragmentary trunk vertebra, five fragments of a large vertebra, one fragmentary caudal vertebra | ||||||||||
Reptilia
- Boidae
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cf. Erycinae indet.
Bonaparte 1825
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IGF102251: incomplete trunk vertebra | ||||||||||
Reptilia
- Colubridae
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Colubridae indet.
Oppel 1811
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IGF102252: one fragmentary trunk vertebra; IGF102253: one vertebral fragment; IGF102254: one fragmentary trunk vertebra | ||||||||||
Reptilia
- Lacertilia
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Lacertilia indet.
Owen 1842
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IGF102250: one highly fragmentary tooth bearing bone, one frontal and five vertebral fragments | ||||||||||
Reptilia
- Anguidae
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Anguinae indet.
Gray 1825
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IGF102244: one trunk vertebra; IGF102245: highly fragmentary trunk vertebra; IGF102246: fragmentary tail vertebra; IGF102247: one osteoderm; IGF102248: one osteoderm; IGF102249: 38 osteoderms or osteoderm fragments | ||||||||||
Anguis sp.
Linnaeus 1758
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IGF102243: one trunk vertebra | ||||||||||
Actinopteri
- Gobiiformes
- Gobiidae
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? Gobiidae indet.
Bonaparte 1832
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IGF102232, a single fragmentary left premaxilla | ||||||||||
see common names |
Geography
Country: | Italy | State/province: | Tuscany | County: | Grosseto |
Coordinates: | 42.8° North, 11.4° East (view map) | ||||
Paleocoordinates: | 42.0° North, 9.6° East | ||||
Basis of coordinate: | estimated from map | ||||
Geographic resolution: | outcrop |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
Key time interval: | Tortonian | ||
Age range of interval: | 11.62000 - 7.24600 m.y. ago | ||
Age estimate: | 8.3 to 8.1 Ma (paleomagnetic) |
Stratigraphy
Formation: | Synthem CB1 | Member: | Unit CB1a | ||
Local section: | Fittaia | Local bed: | 14 m | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: In the summer of 2013 a natural exposure of the lowermost portion of synthem CB1, known as the Fosso della Fittaia section (Figs 1, 2), was discovered, which had been made well accessible due to catastrophic erosion caused by large floods during the preceding autumn. |
Lithology and environment
Primary lithology: | massive mudstone |
Includes fossils? | Y |
Lithology description: The upper portion of the series consists of mudstones similar to the previous ones, except for the occurrence of isolated siderite concretions. Lenticular beds of pebbly sandstone of decimetric thickness are interbedded within the mudstones, showing crude trough-cross lamination that indicates a paleocurrent directed to WSW. | |
Environment: | wet floodplain |
Geology comments: Mudstones will correspond to a poorly-oxygenated floodplain though siderite nodules, which are more common in the uppermost portion of the section (Fig. 2), suggesting the occurrence of temporary shallow water bodies. Siderite may form in river bogs and marshes (Pye 1981; Postma 1977) and is reported to occur at the alluvial-palustrine facies transition (Cabrera et al. 1995). Pebbly sandstones would correspond to the infill of shallow and narrow channels by downcurrent migration of small sinuous-crested dunes. |
Taphonomy
Modes of preservation: | body,replaced with siderite |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some macrofossils | ||
Collection methods: | selective quarrying,surface (in situ),sieve,field collection,observed (not collected) | ||
Minimum sieve size: | 0.500 | Maximum sieve size: | 10.000 |
Collection size: | 170 specimens | ||
Rock censused: | 100 kg | ||
Reason for describing collection: | taxonomic analysis | Collection dates: | 2013 |
Collection method comments: In order to recover microvertebrates we followed the classical approach described by MacKenna (1962). The total of 100 kg of sediment sampled was completely dried. Afterwards, it was immersed in water which produced its disaggregation. The sediment was then screen-washed using professional wet sieves (Controls Srl) with mesh sizes of 10, 2.5, 0.7 and 0.5 mm respectively. Screen-washing removed all the mud and left a residue that has been inspected under a stereomicroscope in order to recover and isolate the small mammal remains and other vertebrate fossils.
All the material studied in the systematic part of this work is housed within the collections of the Museo di Storia Naturale dell’Università di Firenze (Sezione Geologia e Paleontologia) |
Metadata
Also known as: | FdF2013; Fosso della Fittaia | ||
Database number: | 190848 | ||
Authorizer: | E. Vlachos | Enterer: | E. Vlachos |
Modifier: | T. Cleary | ||
Created: | 2017-12-19 10:59:55 | Last modified: | 2019-02-12 11:08:08 |
Access level: | the public | Released: | 2017-12-19 10:59:55 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
64149. | O. Cirilli, M. G. Benvenuti, G. Carnevale, I. Casanovas Vilar, M. Delfino, M. Furió, M. Papini, A. Villa, and L. Rook. 2016. Fosso della Fittaia: the oldest Tusco-Sardinian late Miocene endemic vertebrate assemblages (Baccinello-Cinigiano Basin, Tuscany, Italy). Rivista Italiana di Paleontologia e Stratigrafia 122(2):13-34 [E. Vlachos/E. Vlachos] |