Contribution to knowledge of the last dinosaur footprints in Europe. Persistence of ornithopods in the upper Maastrichtian of SE Spain

摘要: In the locality of Rambla de los Gavilanes (Betic Chain Murcia, Spain), six new outcrops with dinosaur footprints are reported from an uppermost Cretaceous succession coastal marine deposits. Four these sites found in upper part lower Maastrichtian and other two Maastrichtian, latter located only a few meters below Cretaceous-Paleocene boundary (K/Pg). Traces appear as impressions or natural casts, on tabular limestone beds consisting micritic carbonate facies, deposited areas that include variety environments (coastal lakes, tidal flats, salt marshes, shallow lakes). Two main types traces have been recognized, respectively attributed to sauropod large ornithopod remarkable pointed hoof marks. The Europe Spain, Poland Romania. Sauropod (titanosaurian), theropod (Irenesauripus undetermined theropods), at up 20 m K/Pg boundary. Spanish ichnites known closest Pyrenean tridactyl, (Hadrosauropodus Amblydactylus) footprints. this work, assignation has made following recommended synthesis several recent papers which reduce ichnogenus four.