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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.
The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, the even-toed ungulates. The earliest cetaceans were still hoofed mammals. These early cetaceans became gradually better adapted for swimming than for walking on land, finally evolving into fully marine cetaceans.
End Ordovician: 440 million years ago, 86% of all species lost, including graptolites; Late Devonian: 375 million years ago, 75% of species lost, including most trilobites; End Permian, The Great Dying: 251 million years ago, 96% of species lost, including tabulate corals, and most trees and synapsids
Throughout the 1970s the Miami Dolphins had the highest winning percentage in all of professional sports. [citation needed] Griese was inducted into the Pro Football Hall of Fame in 1990. Following the end of Griese's tenure, quarterback David Woodley became the Dolphins' starting quarterback and continued the Dolphins' success.
Miami Dolphins fans have waited 50 years for a team and a season like this one as the Fins face champion Kansas City in Germany on Sunday. It could end in a Super Bowl. Meantime, enjoy this ...
Fifty years ago, members of the 1972 Dolphins team lifted fiery coach Don Shula onto their shoulders for a victory lap out of Los Angeles Memorial Coliseum, celebrating not just a Super Bowl ...
THE 1972 MIAMI DOLPHINS ROSTER. NUMBER, NAME, POSITION: CURRENT STATUS, ‘72 HIGHLIGHT. 1. Garo Yepremian, kicker: Died in Pennsylvania in 2015, at age 70, after a bout with high grade ...
The bottlenose dolphin is a toothed whale in the genus Tursiops.They are common, cosmopolitan members of the family Delphinidae, the family of oceanic dolphins. Molecular studies show the genus contains three species: the common bottlenose dolphin (Tursiops truncatus), the Indo-Pacific bottlenose dolphin (Tursiops aduncus), and Tamanend's bottlenose dolphin (Tursiops erebennus).