23Fossil sites
Arén Formation
Arén Formation in Spain: 23 fossil sites. Typical age: 72–66 million years (Cretaceous).
23Fossil sites
34Finds
72–66 million yearsTypical age
CretaceousMain period
Where its fossils were found
Cretaceous
By geological period
Cretaceous23
What was found
Dinosaurs · 30Megaloolithus, Fusioolithus, Sankofa, Richardoestesia, Blasisaurus, Ageroolithus
Ammonites · 4Pachydiscus, Baculites, Hoploscaphites
Towns with the most fossil sites nearby
MoroFossil sites: 3
CellersFossil sites: 3
L'AlsinaFossil sites: 3
TrempFossil sites: 2
Sant Romá de AbellaFossil sites: 2
BiscarriFossil sites: 2
BacamortaFossil sites: 2
SobrecastellFossil sites: 1
AnsovellFossil sites: 1
LlimianaFossil sites: 1
SuterrañaFossil sites: 1
ÀgerFossil sites: 1
ReperósFossil sites: 1
Other formations of the same period
Cretaceous
Conques Formation 107Olazagutia Formation 91Miravetes Formation 90Huérteles Formation 58El Castellar Formation 41Arcillas de Morella 41Camarillas Formation 39La Posa Formation 33Mirambel Formation 27Cabo de Lata Formation 21Lower Red Garumnian Formation 20Forcall Formation 17La Pedrera de Rúbies Formation 16Grey Garumnian Formation 15Escucha Formation 15Allueva Formation 14Vallcarga Formation 14Tollo Formation 12El Zadorra Formation 12Benassal Formation 12Castrillo de la Reina Formation 11Margas del Forcall 11Pinilla de los Moros Formation 10El Collado Formation 10