1. 1  a. A regional or social variety of a language distinguished by pronunciation, grammar, or vocabulary, especially a variety of speech differing from the standard literary language or speech pattern of the culture in which it exists: Cockney is a dialect of English. 2  b.
Dino Myths. Among the longest land animals! Diplodocus was a long-necked, whip-tailed giant, measuring about 90 feet (27 m) long with a 26 foot (8 m) long neck and a 45 foot (14 m) long tail, but its head was less than 2 feet long. It was among the longest land animals ever.
Basilosaurus was once recognized as one of the largest known extinct cetaceans at 18 metres (59 ft) in length. The largest fossil toothed whale was the Miocene whale Livyatan melvillei which was estimated to be 13.5-17.5 meter in length. One notable feature of L. melvillei was its teeth which were 36 cm long and is unmatched by any other animal, extinct or alive.