Masada del Valle 4 (Miocene of Spain)

Also known as MDV4

Where: Aragon, Spain (40.4° N, 2.6° W: paleocoordinates 40.5° N, 3.2° W)

• coordinate stated in text

When: Alfambra Formation, Turolian (8.7 - 5.3 Ma)

• Middle Turolian, MN12, Late Miocene

Environment/lithology: black lignite

• 'Exposed are about 35m of the Peral Formation, mainly consisting of red clays and red sands with some beds of conglomerate, followed in the top part by 4m of yellow sands and conglomerate and 0.8m of well sorted sand. The Alfambra Formation starts with 1m of white marly limestone with at the base some 1.5cm thick undulating black lignitic clay layers. This is followed by a not exposed interval of 1m, on top 40cm of washed and orientated marly debris of opercula of molluscs with some bone fragments and streaks of green and black clay representing the MDV2 mammal locality. Then follow 2.4m of white marly limestone with some 1-3cm thick black lignitic layers. The next 0.3m consist of dark brown marl and marly limestone containing abundant molluscs (MDV3). In the following 1m of marly limestone some 0-10cm thick undulating black lignitic clay represent the MDV4 mammal locality.'

Size class: mesofossils

Collection methods: bulk, chemical, sieve,

• Specimens are stored at the Geologisch Instituut, Rijksuniversiteit Utrecht.

Primary reference: A. van de Weerd. 1976. Rodent faunas of the Mio-Pliocene continental sediments of the Teruel-Alfambra region, Spain. Utrecht Micropalaeontological Bulletins, Special Publication 2:1-217 [A. Turner/H. O'Regan/L. van den Hoek Ostende]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 35318: authorized by Alan Turner, entered by Hannah O'Regan on 28.11.2003

Creative Commons license: CC BY (attribution)

Taxonomic list

 Rodentia - Muridae
Parapodemus gaudryi Dames 1883 mouse
Parapodemus gaudryi barbarae n. subsp.
Occitanomys adroveri Thaler 1966 mouse
"Valerymys turoliensis" = Huerzelerimys turoliensis Michaux 1969 mouse
 Rodentia - Cricetidae
 Rodentia - Sciuridae