Xenodiphyodon
Extinct genus of tetrapods.
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Xenodiphyodon
Extinct genus of tetrapods.
Coccodus
Extinct genus of fishes.
Acanthochirana
Extinct genus of crustaceans.
Baron Essendon
Extinct barony in the Peerage of the United Kingdom.
Bison latifrons
Extinct species of mammal.
Haplolambda
Extinct genus of mammals.
Xiaochelys
Extinct genus of turtles.
Eysyslopterus
Extinct genus of arthropods.
Nichollssaura
Extinct genus of reptiles.
Acanthochirana
Extinct genus of crustaceans.
Riedaster
Extinct species of starfish.
Cedaria
Extinct genus of trilobites.
Euomphalidae
Extinct family of gastropods.
Machimosauridae
Extinct family of reptiles.
Dysoneuridae
Extinct family of caddisflies.
Megistaspis
Extinct genus of trilobites.
Carcharoides
Extinct genus of Mackerel shark.
Callistophytaceae
Extinct family of seed ferns.
Paraorthacodus
Extinct genus of sharks.
Chamaeleoaspis
Extinct genus of trilobites.
Regaliceratops
Extinct genus of dinosaurs.
Palaeogadus
Extinct genus of fishes.
Neoparadoxia
Extinct genus of desmostylian mammal.
Electromyrmococcus
Extinct genus of true bugs.
Megalictis
Extinct genus of carnivores.