When you see exceptional preservation like this, is it credible to assume these animals lived as long ago as Darwinians claim they did?

Evolutionists have a scheme that is “set in stone” literally and figuratively. Here are fossils emerging from rock layers that evolutionists insist have been undisturbed for tens or even hundreds of millions of years, despite moving continents, natural disasters and changing climates. A lot can happen in so much time. Can time really rescue the incredible?

The Marine Mother

First live birth evidence in dinosaur relative (BBC News). Check out the artwork in Paul Rincon’s article. Have you ever seen a neck that long? The neck is twice as long as the body! Bones of this Dinocephalosaurus, an “Archosauromorpha” (meaning, ‘ruling lizard shape’) have another secret: a baby fossilized inside the mother’s womb. Think about that. Mrs. Ruling-Lizard-Shape had to be buried fast. Even without the baby, the body would have decayed before something this large and thick could wait for sediments to gradually pile up over it. Instead of pondering the speed of burial, the scientists and reporters are focused on how this sheds light on evolution. One said, “It’s great to see such an important step forward in our understanding of the evolution of a major group coming from a chance fossil find in a Chinese field.”

But they weren’t expecting live birth in this group. A press release from the University of Birmingham announces, “Fossil discovery rewrites understanding of reproductive evolution.” The paper in Nature Communications appeals to ‘convergent evolution’ to explain this (see 2/09/17), claiming that (1) live birth evolved many times, and (2) it evolved 50 million years earlier than expected in this group.

Live birth has evolved many times independently in vertebrates, such as mammals and diverse groups of lizards and snakes. However, live birth is unknown in the major clade Archosauromorpha, a group that first evolved some 260 million years ago and is represented today by birds and crocodilians. Here we report the discovery of a pregnant long-necked marine reptile (Dinocephalosaurus) from the Middle Triassic (∼245 million years ago) of southwest China showing live birth in archosauromorphs. Our discovery pushes back evidence of reproductive biology in the clade by roughly 50 million years, and shows that there is no fundamental reason that archosauromorphs could not achieve live birth. Our phylogenetic models indicate that Dinocephalosaurus determined the sex of their offspring by sex chromosomes rather than by environmental temperature like crocodilians. Our results provide crucial evidence for genotypic sex determination facilitating land-water transitions in amniotes.

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