Whales are first found in the fossil record approximately 52.5 million years ago (Mya) during
the early Eocene in Indo-Pakistan. Our knowledge of early and middle Eocene whales has …

▪ Abstract The origin and early evolution of Cetacea (whales, dolphins, and porpoises) is
one of the best examples of macroevolution as documented by fossils. Early whales are …

The emergence of Cetacea in the Paleogene represents one of the most profound
macroevolutionary transitions within Mammalia. The move from a terrestrial habitat to a …

Cetaceans (whales, dolphins, and porpoises) have fascinated and bewildered humans
throughout history. Their mammalian affinities have been long recognized, but exactly which …

Early cetaceans evolved from terrestrial quadrupeds to obligate swimmers, a change that is
traditionally studied by functional analysis of the postcranial skeleton. Here we assess the …

Cetaceans (whales, dolphins, and porpoises) are an order of mammals that originated about
50 million years ago in the Eocene epoch. Even though all modern cetaceans are obligate …

A cladistic analysis of 54 extant and extinct cetacean taxa scored for 304 morphological
characters supports a monophyletic Odontoceti, Mysticeti, Autoceta, and Cetacea. Forcing a …

Mammalodon colliveri is an unusual toothed archaic mysticete (Cetacea) from the Upper
Oligocene Jan Juc Formation of south-east Australia. The morphology of the holotype skull …

Morphological modification of the cetacean vertebral column for axial locomotion was one of
many changes that occurred during and after the invasion of aquatic habitats by the …

Previous analyses have shown that secondarily aquatic tetrapods, including whales, exhibit
osteological adaptations to life in water as part of their complex buoyancy control systems …