Land mammals predominantly move their tales from side to side. A deer is the same, with side to side movement but when alarmed it will raise itís tale up as a warning.<quoted text>
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Name: Rodhocetus ( Rodho whale ).
Named By: P. D. Gingerich, S. M. Raza, M. Arif, M. Anwar & ‬X. Zhou - 1994.
Classification: Chordata, Mammalia, Cetacea, Archaeoceti, Protocetidae.
Species: R. kasrani ( type ), R. balochistanensis.
Size: A round 2.5 meters long.
Known locations: Pakistan.
Time period: Lutetian of the Eocene.
Fossil representation: Remains of 3 individuals.
Although not as well known as Pakicetus and Ambulocetus, Rodhocetus is nonetheless important to the study of how whales evolved from land animals. Rodhocetus is but one of a slowly but steadily growing number of transitional fossil genera, but in Rodhocetus the change can actually be seen across the species as well. The 2001 description of the second species, R. balochistanensis included recurved ankle bones which mean that the rear feet curved back towards the body. Later forms would take this progression with smaller rear limbs in line with the shape of the body until the point that the rear limbs were no longer visible. Study of Rodhocetus has also helped to establish an early origin of the mammals from artiodactyls like hippopotamuses rather than mesonychids like Mesonyx.
An exception might be the beaver which uses itís tale for swimming. A skunk will raise itís tale vertically in order to spray. There is no indication that whales evolved from neither skunks or beavers.
Whales and dolphins as you have previously pointed out have this very powerful specially designed tale that propels them forward with a up and down movement.
My question to you Doctor, where are the transitional fossils that show this spectacular change from a tale that moves from side to side to a whales that moves up and down?
One jawbone or one bone doesnít constitute a slew of transitional fossils. There should be hundreds of fossils that show each phase of the transition. But thereís not but a few sparse examples. Very sparse examples are known Doctor.
If you are going to win me over with evidence, it slim pickings out there Doctor.