Nivel Y, Los Valles de Fuentiduenya (Segovia): Vallesian, Spain

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Amphibia - Temnospondyli
Latonia cf. seyfriedi von Meyer 1843
Sanchiz 1981 1 specimen
1 urostillo
Reptilia - Anguidae
Ophisaurus sp. Daudin 1803
Sanchiz 1981 1 specimen
1 dermal scale.
Reptilia - Testudines - Testudinidae
Testudo aff. catalaunica Bataller 1926
Jimenez Fuentes 1981 2 specimens
synonym of Testudo antiqua
2 carapace fragments.
Mammalia - Rodentia - Sciuridae
Sciuridae n. gen. indet. Gray 1821
Sese Benito and Lopez Martinez 1981 1 specimen
1 lower M1-2. Sciuridae nov., cf. Spermophilinus.
Heteroxerus cf. huerzeleri
Sese Benito and Lopez Martinez 1981 21 specimens
Upper teeth: 1 D4, 2 P4, & M1-2, 5 M3. Lower teeth: 1 D4, 2 P4, 2 M1-2, 1 M3.
Mammalia - Rodentia - Cricetidae
Hispanomys sp. (Mein and Freudenthal 1971)
Sese Benito and Lopez Martinez 1981 3 specimens
1 lower M1, 1 lower M3, 1 upper M3.
Mammalia - Rodentia - Gliridae
cf. Myomimus dehmi (de Bruijn 1966)
Sese Benito and Lopez Martinez 1981 1 specimen
1 upper M1-2.
Mammalia - Rodentia - Castoridae
Chalicomys jaegeri
Sese Benito and Lopez Martinez 1981 39 specimens
lower teeth: 1 mandible with P4-M2, 2 P4, 10 M1-2, 5 M3. Upper teeth: 1 maxilla with P4-M1, 9 P4, 8 M1-2. 1 lower incisor, 3 upper incisor.
Euroxenomys sp. Samson and Radulesco 1973
Sese Benito and Lopez Martinez 1981 2 specimens
1 lower P4, 1 upper P4.
Mammalia - Lagomorpha - Ochotonidae
Prolagus cf. crusafonti López Martinez 1977
Sese Benito and Lopez Martinez 1981 1 specimen
1 lower P3.
Mammalia - Erinaceidae
Erinaceidae indet. Fischer von Waldheim 1817
Sese Benito and Lopez Martinez 1981 1 specimen
1 upper M1 fragment.
Mammalia - Soricidae
Soricidae indet. Fischer 1814
Sese Benito and Lopez Martinez 1981 1 specimen
1 lower M1.
see common names

Geography
Country:Spain State/province:Segovia
Coordinates: 41.4° North, 0.3° West (view map)
Paleocoordinates:41.6° North, 1.2° West
Basis of coordinate:stated in text
Time
Period:Neogene Epoch:Miocene
Stage:Tortonian 10 m.y. bin:Cenozoic 6
Key time interval:Vallesian
Age range of interval:11.63000 - 8.70000 m.y. ago
Stratigraphy
Local bed:Nivel Y
Regional section:Duero Basin
Stratigraphy comments: Miocene, MN9-10. There are 5 levels with fossil remains, level X is the highest in the section (approximately 100m above level Y3).
Lithology and environment
Lithology description: The majority of nivel Y (Y0-2) fall within levels 3 and 4. Level 3: 'Conglomerado de cantos de caliza y huesos muy dispersos en la matriz. Cierta tendencia al tendido horizontal en los huesos, aunque, en conjunto, l estratificacion presenta un caracter masivo. La matriz arcillosa de color verde grisaceo. Estructura masiva. Los huesos largos muy rotos, con predominio de los de eje mayor horizontal. Potencia 40centimetros. Observable por todo el corte. Level 4: ' Arenas de cuarzo con cemento calcareo que pasan a techo a caliza porosa blanquecina con gasteropodo. A techo, este nival se encuentra erosionado y ligeramente carstificado. Potencia irregular 10-30 centrimetros.' P. 348.
Environment:alluvial fan
Geology comments: A pond system with a little alluvial fan in which most of the bones have been found.
Taphonomy
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collection method comments: Excavations in 1978-79 recovered 1.400kgs of sediment for level Y.
Metadata
Also known as:Nivel Y, Los Valles de Fuentidueña (Segovia)
Database number:40767
Authorizer:A. Turner Enterer:H. O'Regan
Modifier:H. O'Regan Research group:PACED
Created:2004-06-30 08:35:16 Last modified:2004-06-30 11:40:36
Access level:the public Released:2004-06-30 08:35:16
Creative Commons license:CC BY
Reference information

Primary reference:
11005.PACED M. Hoyos, M. A. Garcia del Cura, and S. Ordonyez. 1981. Caracteristicas geologicas de yacimiento de los Valles de Fuentiduenya (Segovia). Estudios Geologicos 37:345-351 [A. Turner/H. O'Regan/H. O'Regan]

Secondary references:

11009PACED E. Jimenez Fuentes. 1981. Primeros testudinidae (Chelonia) del Vallesiense de Los Valles de Fuentidueña (Segovia). Estudios Geologicos 37:359-368 [A. Turner/H. O'Regan/H. O'Regan]
11007PACED B. Sanchiz. 1981. Nota sobre la herpetofauna Miocenica de los Valles de Fuentidueña (Segovia). Estudios Geologicos 1981:355-358 [A. Turner/H. O'Regan/H. O'Regan]
11010PACED C. Sese Benito and N. Lopez Martinez. 1981. Los micromammiferos (insectivora, rodentia y lagomorpha) de Vallesiense inferior de Los Valles de Fuentidueña (Segovia, España). Estudios Geologicos 37:369-381 [A. Turner/H. O'Regan/H. O'Regan]