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Biogeographic realm:
Nearctic
(ecological region)
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Entity:
New World (Bioregion)
..Neotropic (Biogeographic realm)
..Nearctic (Biogeographic realm)
....freshwater ecoregions
....terrestrial ecoregions
Current position
New World
(Bioregion)
Ref:
D.M. Olson et al., 2001
: fig. 1.
Historical positions
Biosphere
(Sphere)
(Earth)
Ref:
D.M. Olson et al., 2000
: 40, 41, 42, 43.
Number of Subtaxa
2026
Available in Systema Naturae 2000
685
©2004-2026 Universal Taxonomic Services
Last updated:
28 Aug 2026