About 93 million years ago, a bizarre plankton-eating shark-shaped unlike any other known marine creature glided through the sea in what is now northeastern Mexico using curiously elongated wing-like fins that rendered its body wider than it was long. Aquilolamna’s name means “eagle shark,” a nod to its slender pectoral fins, which “mainly acted as an effective stabilizer,” according to …
Think "shark" and you might picture a sleek, streamlined, torpedo-like fish. Key points: A shark fossil, discovered in a Mexican quarry, had extremely long fins for its size Palaeontologists claimed it belonged to a family of sharks that lived between 66 million and 93 million years ago Based on the skeleton, the fish appeared to swim relatively slowly and feed …