Trias greenfinch
Trias greenfinch Temporal range: Late Pleistocene to Early Holocene
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Skull | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Aves |
Order: | Passeriformes |
Family: | Fringillidae |
Subfamily: | Carduelinae |
Genus: | Chloris |
Species: | C. triasi
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Binomial name | |
Chloris triasi (Alcover & F. Florit, 1987)
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Synonyms | |
Carduelis triasi |
The Trias greenfinch (Chloris triasi) is an extinct passerine from the family of finches (Fringillidae). The fossil remains were unearthed in the Cuevas de los Murciélagos near San Andrés y Sauces in the north of La Palma, Canary Islands. The species epithet commemorates Spanish palaeontologist Miquel Trías who collected the holotype together with Josep Antoni Alcover in July 1985.
Description
The
The Trias greenfinch was closely related to the European greenfinch (Chloris chloris). However, its head was larger and broader and its bill was about 30 percent larger. Its legs were very long and robust, but compared to the greenfinch its wings were shorter. This might have been an adaption to more terrestrial habits in the laurel forests.
Biology
Its large bill suggests the assumption that its main diet included large seeds. The shorter wings might have reduced its flight ability which wasn't necessary due to the lack of predators on La Palma.
Extinction
The fossil material is from layers which are dated to the Late Pleistocene. However, it might have become extinct in the early Holocene when the first human settlers, accompanied by cats and rats, arrived at the Canary Islands.[citation needed]
References
- Josep Antoni Alcover & F. Florit: Una nueva especie de Carduelis (Fringillidae) de La Palma In: Vieraea 17 (1987):p 75-86
- Julian Pender Hume, Michael Walters: Extinct Birds. A & C Black, London 2012. ISBN 140815725X:p 316