fossil

noun 0.658

trace fossil

noun 0.603

coprophagy

noun 0.602

coprolalia

noun 0.570

fossil record

noun 0.564

dinosaur

noun 0.560

trilobite

noun 0.560

microfossil

noun 0.560

fossilisation

noun 0.558

turd

noun 0.554

dinocyst

noun 0.549

fossil fuel

noun 0.548

subfossil

noun 0.547

excrement

noun 0.545

ammonite

noun 0.537

stromatolite

noun 0.537

coccolith

noun 0.535

paleontologist

noun 0.531

coal

noun 0.529

index fossil

noun 0.528

fecal matter

noun 0.528

conodont

noun 0.527

macrofossil

noun 0.522

paleontology

noun 0.520

catlinite

noun 0.517

aerolite

noun 0.516

cobaltite

noun 0.515

troctolite

noun 0.514

coccolithophore

noun 0.512

carbonaceous chondrite

noun 0.512

kerogen

noun 0.512

dung beetle

noun 0.511

phosphorite

noun 0.510

cowdung

noun 0.510

palaeontology

noun 0.507

lignite

noun 0.507

coprostanol

noun 0.506

copra

noun 0.505

sapropel

noun 0.505

mineral coal

noun 0.504

microbialite

noun 0.502

meteorite

noun 0.501

coal bed

noun 0.500