general/fossil

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Fossil genus of single-celled organisms

Facility that burns fossil fuels to produce electricity

Fuel formed over millions of years from dead plants and animals

Extinct fossil genus of tortrix moths

Extinct family of flying insects

Oogenus of dinosaur egg

Oogenus of dinosaur egg

Fossil of unhatched or unborn organisms

Genus of extinct jawless fish

Extinct genus of birds

Extinct genus of reptiles

Extinct genus of reptiles

Extinct genus of lizards

Extinct genus of small to medium-sized lemur from Madagascar

Extinct genus of bears

Extinct genus of reptiles

Extinct genus of reptiles

Extinct genus of reptiles

Informal group of Triassic archosaurs with pillar-erect posture

Genus of eurypterid

Extinct genus of reptiles

Extinct genus of fishes

Fossil from the Upper Devonian of Iowa

Extinct genus of reptiles

Extinct genus of reptiles

Extinct genus of reptiles

Extinct genus of mosasaurids

Extinct genus of birds

Single-species fossil lichen genus

Species of extinct ape from Miocene central Africa

Genus of fossil organism from Mazon Creek

Extinct genus of birds

Extinct genus of reptiles

Extinct genus of reptiles

Extinct genus of primates

Extinct hominine genus from the Miocene

Extinct genus of mammals

Extinct genus of reptiles

Extinct species of fish

Extinct genus of reptiles

Extinct family of mammals

Genus of fleas

Extinct genus of amphibians

Eocene fossil primate from Myanmar

Extinct genus of lizards

Extinct genus of reptiles

Extinct genus of mammals