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69 entries under extinction topic. ×

6
Pentacrinites(noun, fauna, eocene)
6
Phymosoma(noun, fauna, eocene)
6
Piceoerpeton(noun, fauna, eocene)
6
Pilgrimella(noun, fauna, eocene)
6
Pliolophus(noun, fauna, eocene)
6
Proaracana(noun, fauna, eocene)
6
Prochetodon(noun, fauna, eocene)
6
Propalaeotherium(noun, fauna, eocene)
6
Pseudocrypturus(noun, fauna, eocene)
6
Rhynchonella(noun, fauna, eocene)
6
Rotularia(noun, fauna, eocene)
6
Sarkastodon(noun, fauna, eocene)
6
Stylina(noun, fauna, eocene)
6
Tylocidaris(noun, fauna, eocene)
6
Tytthaena(noun, fauna, eocene)
6
Umayodus(noun, fauna, eocene)
6
Volutospina(noun, fauna, eocene)
6
Zamites(noun, fauna, eocene)
1
bartonian extinction(noun, fauna, eocene)
1
chattian extinction(noun, eocene, genus)
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APASmart Define. (1970). thamnasteria thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/thamnasteria/thesaurus/related
ChicagoSmart Define. 1970. "thamnasteria thesaurus" https://smartdefine.org/thamnasteria/thesaurus/related (accessed September 26, 2026).
HarvardSmart Define 1970, thamnasteria thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/thamnasteria/thesaurus/related>.
MLASmart Define. "thamnasteria thesaurus" 1 January 1970. Web. 26 September 2026. <https://smartdefine.org/thamnasteria/thesaurus/related>