Fossil Skin Pigment Evolved Three Times?
Dark outlines of soft tissue often surround fossilized vertebrates. What chemicals make up this material? Paleontologists recently presented their analysis of original skin leftovers from three marine reptile fossils and inadvertently revealed three clues that darken their evolutionary explanations.
Whole Lizard Encased in Amber
The Amber Museum in the Mexican city of San Cristóbal de las Casas has a new specimen. Amber sometimes preserves insects, but this specimen contains a whole lizard. This unique discovery confirms two clear trends found in amber fossils.
The discovery site lies within the state of Chiapas in far southern Mexico. Amber collecting has become a key economic activity in that region.