This video says about itself:
Finding A Fossil Gompotherium [sic; Gomphotherium] Elephant Tooth Scuba Diving
Here I find a small gompotherium tooth. It was an ancient elephant from the early Miocene.
From Discovery News:
Ancient Mammals Fill Elephant Family Tree
April 15, 2008 — Fossils of two ancient, extinct mammals are helping piece together the elephant family tree.
Modern elephants and their relatives, which fall into the order Proboscidea, form a diverse clan that includes hyraxes, manatees and dugongs. That group can now be linked to two extinct beasts, known as Barytherium and Moeritherium, which emerged around 50 million years ago.
Surprisingly, they didn’t look much like elephants or their living relatives either.
According to Alexander Liu, lead researcher on a new study of the fossils, Moeritherium was much smaller than today’s elephants and was instead “similar in size and stature to a modern tapir, having a prehensile upper lip rather than a trunk and weighing roughly 250 to 300 kg (551 to 661 pounds).”
Modern elephants, by contrast, can weigh up to 24,000 pounds.
Barytherium, on the other hand, was a little more elephant-like, given its trunk, but was still much smaller than today’s elephants, Liu told Discovery News.
Liu, a researcher in the University of Oxford’s Department of Earth Sciences, along with colleagues Erik Seiffert and Elwyn Simons, reconstructed the habitats and behaviors of the two extinct animals just by analyzing 11 of the beasts’ teeth.
Their findings are published in the latest issue of Proceedings of the National Academy of Sciences.
Their detective work involved studying carbon and oxygen isotopes found in the teeth, which date to 37 million years ago and were excavated at the Birket Qarun Formation in northern Egypt. …
Despite these reservations, Sanders believes the new research “sets a good framework” for additional studies on the elephant family tree. He hopes Liu and his team will study remains from other elephant relatives, such as Phosphatherium and Numidotherium, in the future.
See also here.
New Proboscideans (Mammalia) from the middle Miocene of Thailand: here.
Miocene Mammals of Oregon: here.
Scientists have found evidence that cavemen near the U.S.-Mexico border were butchering gomphotheres, elephant-like beasts from the Ice Age, that were believed to be nearly extinct in North America by the time humans appeared there: here.
Scientists at the University of Leicester are using an unusual resource to investigate ancient climates – prehistoric animal urine. The animal in question is the rock hyrax, a common species in countries such as Namibia and Botswana. They look like large guinea pigs but are actually related to the elephant. Hyraxes use specific locations as communal toilets, some of which have been used by generations of animals for thousands of years. The urine crystallises and builds up in stratified accumulations known as ‘middens,’ providing a previously untapped resource for studying long-term climate change: here.