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59 entries under bird topic. ×

1
Andrewsornis(noun, geohistory, oligocene)
1
Anhinga walterbolesi(expression, geohistory, oligocene)
1
Anthropornis(noun, geohistory, oligocene)
1
Archaeospheniscus(noun, geohistory, oligocene)
1
Archaeospheniscus lopdelli(expression, geohistory, oligocene)
1
Archaeospheniscus lowei(expression, geohistory, oligocene)
1
Arthrodytes(noun, geohistory, oligocene)
1
Australlus(noun, geohistory, oligocene)
1
Australotadorna(noun, geohistory, oligocene)
1
Barawertornis(noun, geohistory, oligocene)
1
Bathornis(noun, geohistory, oligocene)
1
Bathornithidae(noun, geohistory, oligocene)
1
Caspiodontornis(noun, geohistory, oligocene)
1
Collocalia buday(expression, geohistory, oligocene)
1
Copepteryx(noun, geohistory, oligocene)
1
Corvitalusoides(noun, geohistory, oligocene)
1
Cruschedula(noun, geohistory, oligocene)
1
Diomedeoididae(noun, geohistory, oligocene)
1
Duntroonornis(noun, geohistory, oligocene)
1
Dynamopterus(noun, geohistory, oligocene)
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For more, visit Oligocene_bird on Power Thesaurus
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APASmart Define. (1970). oligocene bird thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/oligocene_bird/thesaurus/narrower
ChicagoSmart Define. 1970. "oligocene bird thesaurus" https://smartdefine.org/oligocene_bird/thesaurus/narrower (accessed September 30, 2026).
HarvardSmart Define 1970, oligocene bird thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/oligocene_bird/thesaurus/narrower>.
MLASmart Define. "oligocene bird thesaurus" 1 January 1970. Web. 30 September 2026. <https://smartdefine.org/oligocene_bird/thesaurus/narrower>