Growing features such as big combat-ready horns requires a lot of energy, and female animals already have to expend lots of it to produce eggs. If the trilobites’ tridents are the first evidence ...

When you are being trained as a palaeontologist or a geologist, you are told fossils only occur in sedimentary rocks,” ...

The one caution the researchers raise about this find is that the feeding behavior of the trilobite may not be entirely normal. There's a discontinuity in the animal's shell between two of its ...

Trilobites were one of our planet’s most successful groups of animals. First appearing roughly 521 million years ago, they split into an incredible diversity of species ranging from just a few ...

trifurcatus trilobite in the middle with an actaeon ... which grew to maturity with a deformed trident. Wild animals with serious deformities in their feeding or defensive mechanisms generally ...

Such parts are typically lost as the animals turn into fossils. “These trilobite fossils represent the most complete specimens found to date, not only preserving the hard exoskeleton but also ...

A recent study shows that marine oxygen levels were crucial to the evolution of early Paleozoic trilobite body size, suggesting that oxygen may have influenced the evolution of other animals' body ...

Geologists have discovered 10 new species of trilobite in a relatively unstudied ... and are helping scientists create a new map of the animal life during the late Cambrian period.

The detailed preservation showed that trilobites were anatomically sophisticated animals, with many specialized adaptations for feeding and movement along the seafloor, he said. The pressures of ...

For the first time, a trilobite fossil has been found with preserved gut contents, and an analysis of the specimen suggests the iconic ancient animal had a voracious and unfussy appetite.

Dr. Greg Edgecombe said, "I've been studying trilobites for nearly 40 years, but I never felt like I was looking at live animals as much as I have with these ones. I've seen a lot of soft anatomy ...