Sharks have been around for hundreds of millions of years, appearing in the fossil record before trees even existed. But what did they evolve from, are they ‘living fossils’, and how did they survive ...

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For the past several years, Maisey and colleagues have investigated a Doliodus problematicus fossil discovered in 2003, and hailed as the world’s oldest shark fossil. The team investigated the ...

POLARIS has long helped mariners find their way through our planet's seas and oceans by pointing the way north.

The new species of obruchevodid petalodont, called Clavusodens mcginnisi, or “McGinnis nail tooth,” was identified through a number of fossil teeth located in the Ste. Genevieve Formation, a ...