Farmers in Riodeva cleared stones from their almond 
 orchards for generations, never dreaming they were tossing aside dinosaur bones -- and laying a 
 trail for one of Spain's greatest fossil finds.
 But when two paleontologists stumbled across 
 a field scattered with the fragments they knew they had 
 probably found a valuable cache and when 
 digging began in early 2003 it revealed a hoard beyond their wildest hopes.
 The remains of the largest dinosaur found in Europe, including an 
 upper limb bone as big as a person -- 5 feet 9-1/2 inches -- were 
 nestling just below the surface in this 
 remote corner of the central Spanish region of Aragon.
 "To find lots of bones is amazing. To find such a big animal is 
 extraordinary, and to find it in Europe is extra-terrestrial," said Alberto Cobos, the man 
 who recognized the potential of the site.
 The huge reptile, which weighed an 
 estimated 40 to 50 tons, the same as six or seven elephants, 
 probably roamed the region up to 130 million years ago when it was a 
 tropical "dinosaur paradise," crisscrossed with rivers and streams.
 Huge, perfectly preserved toe bone fossils and even a single 
 curved nail, larger than a human hand, were found with a rib and leg 
 and possibly pelvic bones.
 The herbivore's bones were jumbled 
 with remains from other, smaller animals -- including teeth from 
 carnivores that may have feasted on its 
 flesh.
 Up to 114 feet long, the dinosaur could represent a new species, 
 although the team uncovering it is wary of jumping to conclusions -- 
 but its size alone is enough to put Riodeva firmly on the map.
 The largest known dinosaurs have been found in Latin America and 
 the new Spanish dinosaur claims the record for Europe, Cobos 
 said.
 (Agencies)