Greater Puerto Rican ground sloth (Acratocnus major) - The greater Puerto Rican ground sloth became extinct approximately 3000–4000 years ago.
Lesser Puerto Rican ground sloth (Acratocnus odontrigonus) - The lesser Puerto Rican ground sloth became extinct approximately 3000–4000 years ago.
Puerto Rican caracara (Caracara latebrosus)
Puerto Rican plate-tooth (Elasmodontomys obliquus) - The Puerto Rican plate-tooth, giant hutia or Puerto Rican paca became extinct approximately in the early 16th century.
^The Puerto Rican pewee is not an official species recognized by the AOU. The species is a proposed split from the Lesser Antillean pewee (Contopus latirostris) by Rafaelle, H., et al. (1998) in A Guide to the Birds of the West Indies, Princeton University Press, ISBN 0691087369.
^This species was formerly categorized as Otus nupides, but was subsequently moved to the genus Megascops, and then moved again to its own monospecific genus Gymnasio.
^This species was formerly a subspecies of Spindalis zena. In 1997 it was elevated to species status: O. H. Garrido; K. C. Parkes; G. B. Reynard; A. Kirkconnell; R. Sutton (1997). "Taxonomy of the Stripe-Headed Tanager, Genus Spindalis (Aves:Thraupidae) of the West Indies". Wilson Bulletin. 109 (4): 561–594.
^ This species was split from Chlorophonia musica based on significant differences in plumage in Species Updates IOC Version 13.2 https://www.worldbirdnames.org/new/updates/species-updates/
^"Anolis poncensis". Zipecodezoo.com. Archived from the original on 27 December 2014. Retrieved 4 January 2009.
^"Ctenonotus Poncensis". Zipcodezoo.com. Archived from the original on 27 December 2014. Retrieved 4 January 2009.
^This species was formerly categorized as Peltophryne lemur but was subsequently renamed[permanent dead link].
^Platnick, N.I. (2006). world spider catalog, version 7.0. American Museum of Natural History
Referencesedit
Sociedad Ornitológica Puertorriqueña (in Spanish)
Bosque Seco de Guánica (in Spanish)
Integrated Taxonomic Information System
Extinct vertebrates of the U.S.A., U.S. territories and Canada since 1492