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72 entries under extinction topic. ×

17
Alagomyidae(noun, animal, creature, geohistory, appearance)
17
Anaptomorphinae(noun, animal, creature, geohistory, appearance)
17
Arctostylopida(noun, animal, creature, geohistory, appearance)
17
Coryphodontidae(noun, animal, creature, geohistory, appearance)
17
Dinocerata(noun, animal, creature, geohistory, appearance)
17
Dinopanorpidae(noun, animal, creature, geohistory, appearance)
17
Eurymylidae(noun, animal, creature, geohistory, appearance)
17
Hapalodectidae(noun, animal, creature, geohistory, appearance)
17
Henricosborniidae(noun, animal, creature, geohistory, appearance)
17
Hyaenodontidae(noun, animal, creature, geohistory, appearance)
17
Miacidae(noun, animal, creature, geohistory, appearance)
17
Numidotheriidae(noun, animal, creature, geohistory, appearance)
17
Oldfieldthomasiidae(noun, animal, creature, geohistory, appearance)
17
Phenacodontidae(noun, animal, creature, geohistory, appearance)
17
Plesiadapiformes(noun, animal, creature, geohistory, appearance)
17
Pristichampsidae(noun, animal, creature, geohistory, appearance)
17
Sophiornithidae(noun, animal, creature, geohistory, appearance)
17
Tillodontia(noun, animal, creature, geohistory, appearance)
17
Triisodontidae(noun, animal, creature, geohistory, appearance)
17
Uintatheriidae(noun, animal, creature, geohistory, appearance)
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APASmart Define. (1970). xenungulata thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/xenungulata/thesaurus/related
ChicagoSmart Define. 1970. "xenungulata thesaurus" https://smartdefine.org/xenungulata/thesaurus/related (accessed September 30, 2026).
HarvardSmart Define 1970, xenungulata thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/xenungulata/thesaurus/related>.
MLASmart Define. "xenungulata thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/xenungulata/thesaurus/related>