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.
Biggest Whale-Basilosaurus (60 Tons). Basilosaurus (Nobu Tamura). Unlike the other mammals on this list, Basilosaurus can't lay claim to being the largest-ever of its breed--that honor belongs to the still-extant Blue Whale, which can grow to as much as 200 tons.