© Stuart Ford
Quaternary
Neogene
Paleogene
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian
AMMONITES { 409 - 66 mya }
BELEMNITES { 234 - 66 mya }
CARDITIDA { 541 mya – present }
CLUPEIFORMES { 163.5 mya - present }
CRINOID { 467.3 mya - present }
DINOSAURIA { 233.23 - 66 mya }
GASTROPODS { 541 mya – present }
GRYPHAEA { 199.6 - 33.9 mya }
ICHTHYOSAURIA { 250 - 90 mya }
RHYNCHONELLIDA { 443.8 mya - present }
SCLERACTINIA { 247.2 mya - present }
SELACHII/BATOIDEA { 201.4 mya - present }
SPIONIDA { 541 mya – present }
SPONGES { 635 mya - present }
TRACHEOPHYTES { 425 mya - present }
TRILOBITES { 521 - 251.9 mya }
URCHINS { 485.4 mya - present }
Quaternary
Neogene
Paleogene
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian