regionalism (riËdÊÉnÉlÉªzÉm ) uncountable noun. Regionalism is a strong feeling of pride or loyalty that people in a region have for that region, often including a desire to govern themselves. A grass-roots regionalism appears to be emerging.
Most of the largest herbivorous specimens on record were discovered in the 1970s or later, and include the massive titanosaur Argentinosaurus huinculensis, which is the largest dinosaur known from uncontroversial evidence, estimated to have been over 50 t (55 short tons) and 39.7 m (130 ft) long.
Pterosaurs (Pterosauria)Edit. 1  The largest known pterosaur was Quetzalcoatlus northropi, at 127 kg (280 lb) and with a wingspan of 12 m (39 ft). Another close contender is Hatzegopteryx, also with a wingspan of 12 m. 2  Yet another possible contender for the title is Tropeognathus, which had a 9-meter (30-foot) wingspan.