fossil

noun 0.674

subfossil

noun 0.620

coelacanth

noun 0.598

living museum

noun 0.590

fossilisation

noun 0.588

fossil record

noun 0.571

trace fossil

noun 0.570

fossil water

noun 0.569

macrofossil

noun 0.563

dinosaur

noun 0.559

microfossil

noun 0.552

relic

noun 0.552

lungfish

noun 0.549

lifeform

noun 0.541

trilobite

noun 0.539

index fossil

noun 0.536

fossil fuel

noun 0.532

giant tortoise

noun 0.527

plesiosaur

noun 0.524

woolly mammoth

noun 0.523

oldest

noun 0.522

paleontologist

noun 0.518

endangered species

noun 0.516

dodo bird

noun 0.513

ground sloth

noun 0.512

life form

noun 0.511

tuatara

noun 0.511

atavism

noun 0.509

common ancestor

noun 0.505

ancient

noun 0.504

ichthyosaur

noun 0.504

old-growth forest

noun 0.503

pupfish

noun 0.503

ichthyosaurus

noun 0.501

everliving

noun 0.501