AN OVERVIEW OF THE LOWER CRETACEOUS DINOSAUR TRACKSITES FROM THE MIRAMBEL FORMATION IN THE IBERIAN RANGE (NE SPAIN)

DIEGO CASTANERA; DÍAZ-MARTÍNEZ, IGNACIO; MIGUEL MORENO AZANZA; JOSÉ IGNACIO CANUDO; JOSÉ MANUEL GASCA

New Mexico Museum of Natural History and Science Bulletin

New Mexico Digital Collections

Lugar: Alburquerque; Año: 2016 vol. 71 p. 65 - 74

1524-4156

Up to now, the ichnological vertebrate record from the Barremian Mirambel Formation (NE Spain) hasremained completely unknown despite the fact that osteological findings have been reported in recent years. Herewe provide an overview of 11 new dinosaur tracksites found during a fieldwork campaign in the year 2011. Themajority of these tracksites (seven) preserve small- to medium-sized tridactyl tracks here assigned to indeterminatetheropods. Only one footprint presents enough characters to classify it as Megalosauripus isp. Ornithopod tracksidentified as Caririchnium isp. and Iguanodontipodidae indet. and sauropod tracks are recorded at two tracksites.The footprints are preserved in a variety of paleoenvironmental conditions and thus display different kinds ofpreservation (true tracks, shallow undertracks, natural casts and undertrack casts). The ichnological record fromthe Mirambel Formation seems to be theropod dominated. This is a clear discrepancy with the osteological recordidentified in this formation, which shows a predominance of ornithopod dinosaurs.