Tagged: trilobite

Monday Macro- Trilobite - Chthonic Wildlife Ramblings

Brendan Moyle Nov 15, 2010

Trilobites first appeared in the geological column in the Cambrian era  (543 to 490 mya). They were an enormously successful group of animals, with some 5000 genera and over 30,000 described species. Many of the trilobites became extinct during the great late Devonian extinction (c 360 mya) . The last of the trilobites became extinct in the even greater Permian-Triassic … Read More