Blasi 1, Arén (Cretaceous of Spain)

Where: Aragón, Spain (42.3° N, 0.7° E: paleocoordinates 34.3° N, 0.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Arén Formation, Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• top of formation; upper part of chron c30n, 65.6-68.7 mya

• bed-level stratigraphic resolution

Environment/lithology: deltaic; coarse-grained, ferruginous, micaceous, white, cherty/siliceous sandstone

• "the sands of the Arén Sandstone are composed of quartz with scarce feldspar, chert, quartzite, mica, and fossil debris, and show medium- and large-scale cross-bedding...The sandstone is a mixed arenite with white, coarse, well-rounded grains. Iron nodules and remnants of iron crusts are locally present."

Size class: macrofossils

Collected in 1999-2007

Collection methods: quarrying, surface (float), surface (in situ), mechanical,

Primary reference: J. I. Canudo, L. Ardévol, G. Cuenca-Bescós, N. López-Martínez, X. Murelaga, X. Pereda-Suberbiola, J. I. Ruiz-Omeñaca and X. Orue-Etxebarria. 1999. New dinosaur localities near the Cretaceous/Tertiary boundary from Arén (Huesca, Spain). In J. I. Canudo & G. Cuenca-Bescós (eds.), IV European Workshop on Vertebrate Paleontology, Albarracin, Spain. Universidad de Zaragoza 32-33 [M. Carrano/M. Carrano]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 45435: authorized by Matthew Carrano, entered by Matthew Carrano on 22.10.2004, edited by Matthew Oreska, Graeme Lloyd and Jonathan Tennant

Creative Commons license: CC BY (attribution)

Taxonomic list

 Saurischia -
Theropoda "indet. 2"4 Marsh 1881 theropod
MPZ98/68, tooth
Theropoda "indet. 1"4 Marsh 1881 theropod
MPZ 2004/3, 4, isolated teeth
 Neornithischia - Hadrosauridae
Hadrosauridae indet.1 Cope 1869 hadrosaurid
MPZ 2007/702, 930-934
Blasisaurus canudoi n. gen. n. sp.2 Cruzado-Caballero et al. 2010 lambeosaurine
MPZ 99/665-667
 Crocodylia -
Alligatoroidea indet.3 Gray 1844 crocodilian