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Hippos are large and aquatic, like whales, but the two groups evolved those features separately from each other. We know this because the ancient relatives of hippos called anthracotheres (not shown here) were not large or aquatic. Nor were the ancient relatives of whales that you see pictured on this tree — such as Pakicetus. Hippos likely evolved from a group of anthracotheres about 15 million years ago, the first whales evolved over 50 million years ago, and the ancestor of both these groups was terrestrial.
These first whales, such as Pakicetus, were typical land animals. They had long skulls and large carnivorous teeth. From the outside, they don't look much like whales at all. However, their skulls — particularly in the ear region, which is surrounded by a bony wall — strongly resemble those of living whales and are unlike those of any other mammal. Often, seemingly minor features provide critical evidence to link animals that are highly specialized for their lifestyles (such as whales) with their less extreme-looking relatives.
We report here a new pakicetid archaeocete from marine strata of the middle Subathu Formation of India. The new pakicetid was found about 100 m lower stratigraphically and 3.5 million years older geologically than the Kuldana–Kalakot-equivalent upper Subathu red bed interval producing Pakicetus elsewhere. This not only extends the fossil record of Cetacea back in time, but also reinforces the idea that whales originated on the margin of Tethys and corroborates interpretation of pakicetids as an initial amphibious stage of cetacean evolution entering Tethys to feed on fish.
originally posted by: Phantom423
a reply to: Observationalist
Here's an example of a research paper where real samples where discovered in India. The paper discusses how this discovery fits in with the evolution of whales. Unless you're in the profession or research the literature yourself, you're not going to come across this type of detailed information in your daily newspaper. So yes, transitional fossils do exist and there are enough of them to say that statistically they validate the evolution of whales.
A new Eocene archaeocete (Mammalia, Cetacea) from India and the time of origin of whales
www.pnas.org...
We report here a new pakicetid archaeocete from marine strata of the middle Subathu Formation of India. The new pakicetid was found about 100 m lower stratigraphically and 3.5 million years older geologically than the Kuldana–Kalakot-equivalent upper Subathu red bed interval producing Pakicetus elsewhere. This not only extends the fossil record of Cetacea back in time, but also reinforces the idea that whales originated on the margin of Tethys and corroborates interpretation of pakicetids as an initial amphibious stage of cetacean evolution entering Tethys to feed on fish.
originally posted by: Phantom423
So yes, transitional fossils do exist and there are enough of them to say that statistically they validate the evolution of whales.
originally posted by: cooperton
originally posted by: Phantom423
a reply to: Observationalist
Here's an example of a research paper where real samples where discovered in India. The paper discusses how this discovery fits in with the evolution of whales. Unless you're in the profession or research the literature yourself, you're not going to come across this type of detailed information in your daily newspaper. So yes, transitional fossils do exist and there are enough of them to say that statistically they validate the evolution of whales.
A new Eocene archaeocete (Mammalia, Cetacea) from India and the time of origin of whales
www.pnas.org...
We report here a new pakicetid archaeocete from marine strata of the middle Subathu Formation of India. The new pakicetid was found about 100 m lower stratigraphically and 3.5 million years older geologically than the Kuldana–Kalakot-equivalent upper Subathu red bed interval producing Pakicetus elsewhere. This not only extends the fossil record of Cetacea back in time, but also reinforces the idea that whales originated on the margin of Tethys and corroborates interpretation of pakicetids as an initial amphibious stage of cetacean evolution entering Tethys to feed on fish.
Am i missing something? There is only a drawing of a fragment of jaw bone. How can they even identify that as a missing link or new species?????
You see, this is an appeal to authority. You don't actually point to the evidence (because there is none in this case) and say why it proves your point, you point to the opinions of authority who are trying to make money and therefore need grants so they have a tendency to exaggerate their findings.
They didn't even post a picture of the bone fragment they found. How do they suppose this is a transition fossil? They assume evolution is true, and attempt to match all observed findings into that dogma. It is backwards science. It is no shock, they need grant money and therefore need to follow suite. But again, your blind belief in these authorities is astounding, and it is fallacious.
originally posted by: Phantom423
So yes, transitional fossils do exist and there are enough of them to say that statistically they validate the evolution of whales.
Show me a complete pakicetid fossil and then we can debate whether or not it is a missing link. I'll save you time, there is no such thing. It is purely in the imagination of those who wish to extrapolate data to try to fit an out-dated theory
originally posted by: Phantom423
a reply to: cooperton
Fabulous analysis, Coop. Nobel Prize for that one.
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