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The evolution of cetaceans is thought to have begun in the Indian subcontinent from even-toed ungulates (Artiodactyla) 50 million years ago (mya) and to have proceeded over a period of at least 15 million years. [2] Cetaceans are fully aquatic mammals belonging to the order Artiodactyla and branched off from other artiodactyls around 50 mya.
Pakicetus (meaning "whale from Pakistan") is an extinct genus of amphibious cetacean of the family Pakicetidae, which was endemic to Indian Subcontinent during the Ypresian (early Eocene) period, about 50 million years ago. [2]
The evolution of cetaceans is thought to have begun in the Indian subcontinent from even-toed ungulates (Artiodactyla) 50 million years ago (mya) and to have proceeded over a period of at least 15 million years. Cetaceans are fully aquatic mammals belonging to the order Artiodactyla and branched off from other artiodactyls around 50 mya.
Among those in the crowd some 50 years ago was Marielena Cabrera. ... The 1972 Dolphins, 50 years later, remain the only NFL team to have a perfect season. Bill Daley, a longtime producer of the ...
80 million to 50 million years ago, Laramidia. Above ground, things live and die and disappear. But the dinosaur, encased in layers of sediment, is exempt from this endless cycle of growth and decay.
Fifty years ago, the Miami Dolphins became the first NFL franchise to have a perfect season, an accomplishment that has never been matched. A look back at a legendary team that put South Florida ...
The two parvorders, baleen whales (Mysticeti) and toothed whales (Odontoceti), are thought to have diverged around thirty-four million years ago. [13] Baleen whales have bristles made of keratin instead of teeth. The bristles filter krill and other small invertebrates from seawater. Grey whales feed on bottom-dwelling mollusks.
When an asteroid wiped out the dinosaurs, new animals and plants competed to survive on a changing planet. Grapes were the unlikely winners 60 million years ago.