Hypothetical species
Several species have been assumed to exist, but due to a lack of physical evidence they can only be regarded as potential species. Hypothetical species are usually believed to be extinct. They have caused confusion, as they may have been a separate species, a subspecies, an introduced species or a misidentification. List of hypothetical species

Birds
Dominican green-and-yellow macaw
Gallus giganteus
Guadeloupe amazon
Guadeloupe parakeet
Jamaican red macaw
Lesser Antillean macaw
Martinique amazon
Martinique macaw
Hypothetical relatives of the Rodrigues parrot
Red-headed macaw
Réunion solitaire or white dodo (misidentification of the Réunion ibis)
Réunion swamphen
Painted vulture

Dinosaurs
Archaeoraptor
Proavis

Insects

Venezuelan poodle moth

Mammals
Chilihueque
Sumxu
Kting voar
Steller's sea ape
Marozi
Andean wolf
Kallana
Zhejiang unknown canid
Long-necked seal

Fish
Bathysphaera
Bathysidus
Bathyembryx

Plants
Laysan fan palm

See also
Chimera (paleontology)

References

Parrots
Hypothetical extinct species