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Post by another specialist on Jun 6, 2005 15:00:51 GMT
Carduelis triasi
Alcover & Florit 1987
Holocene of La Palma, Canary Islands, e Atlantic Ocean
Primary materials: Holotype: nearly complete cranium
Secondary materials: Paratypes: humerus fragments, ulnae, carpometacarpus
Josep Antoni Alcover & F. Florit,
Una nueva especie de Carduelis (Fringillidae) de La Palma
Vieraea 17 (1987): 75-86
A finch
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Posts: 0
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Post by Deleted on Nov 1, 2005 17:43:57 GMT
Hi ! Yes, a finch:  Bye Alex |
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Post by another specialist on Nov 3, 2005 19:09:36 GMT
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Post by Carlos on Dec 29, 2005 0:55:48 GMT
From a popular article on Canary Is Extinct Vertebrates, made by an expert Canarian palaeontologist:
RANDO, J. C. (2003): Protagonistas de una catástrofe silenciosa. Los vertebrados extintos de Canarias. El Indiferente, 14: 3-15.
(Translated from Spanish by me)
Trías Greenfinch (Carduelis triasi)
Of this former inhabitant of La Palma Island, only a skull and a few postcranial bones are known. It had a bigger head, and a broader and longer (30%) bill than Common Greenfinch (Carduelis chloris). On the contrary, it had shorter wings.
This combination of characteristics seems to point to less flying habits, maybe related to living in the laurel forest. Its remains are so well preserved and look so recent that the author of this species description suggests that chances are for this species to survive in remote spots of La Palma forests.
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Post by adzebill on Dec 29, 2005 12:29:47 GMT
Found on internet: Cranium of Carduelis triasi, compared to Carduelis chloris:  |
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Post by another specialist on Dec 30, 2005 8:36:08 GMT
Carduelis triasi Verdilhão de Trias , the discovery of a fossil one Carlos Enrique Light Nunes de Almeida In 1987, J. Alcover and F. Florit they had made an important one discovered, they had found some fragmentos of bones and the complete skull of a new species of Verdilhão of the Carduelis sort until then unknown in the paleontological and ornithological world. Dated of Pleistoceno-Holoceno, the fossil one was found in one of the niches of the Caves of Murciélagos in Los Sauces, in the La island Palm, one of the minors of the archipelago of the Canaries. This bird, only known unit, was called Carduelis triasi or Verdilhão de Trias. The skull was found unbroken on a rock in the part most internal of the inferior cave in a depth of more or less forty and nine meters. The other fragmentos of bones had been found to less than two meters and way it skull. Perhaps possibly, some predator took the bird to such depth or the water. Unhappyly, it does not have as to describe this bird, but everything leads to believe that it was extremely similar to the Carduelis chloris , is possible that both had had one exactly ancestral one in common. As the similarities between chloris Carduelis triasi and Carduelis are notables, this last one were adopted, for its finders, to serve of comparison between the species. This new species would have as characteristic main the corporal size bigger and lesser wing that its next relative. Inside of the Carduelis sort both species, chloris and triasi , hold a craneano drawing sufficiently similar (vide illustration). The similarity between these species immediately suggests the possible derivation of this to leave of that one or vice versa. For its apparent biology, Carduelis triasi was a species of sufficiently terrestrial habits, was not a bird of great flying abilities, therefore, its wing was small in relation to the body. For the size of the skull it was possible esteem that this bird would have approximately to weigh more than two times the weight of a Carduelis chloris . It had the robust and powerful peak, perhaps a little lesser that of the Tentilhão of the Galápagos - Geospiza magnirostris . The feeding, probably, was constituted of foods harder than the ingested ones for Carduelis Chloris . One of the possibilities is assumed that it lived in the island until this being colonized for the man, then, is of that the man has been the causing of the extinction of this bird, as well as was with the Dodo and Moa. One another possibility that cannot be discarded, is of that nobody is certain that this bird really is extinct. www.carduelis.bio.br/c-triasi.htm |
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Post by another specialist on Dec 30, 2005 8:38:21 GMT
The subspecies present on the Canary Islands is believed to be the southern European and North African race C. c. aurantiiventris, although the alternative subspecies C. c. vanmarli has been proposed for nearby North Africa. The greenfinch has also recently colonised Madeira. Migrants are sighted regularly on the eastern islands and adjoining islets. Sub fossils of a recently extinct goldfinch species with a very robust head and beak have recently been discovered on La Palma. There is a remote possibility that the bird, named Carduelis triasi, still lives in remote areas of the island. www.fuerteventura.com/fauna/birds.shtml |
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Post by another specialist on Mar 22, 2008 22:46:01 GMT
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Post by Carlos on Sept 12, 2008 10:28:48 GMT
Photo of the picture of the skull of the extinct Trias Greenfinch (Carduelis triasi) in the exhibition of the Canarian Museum of Nature and Humankind, I took during my visit there last week: |
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Post by adzebill on Aug 23, 2012 13:12:07 GMT
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Post by Melanie on Aug 23, 2012 14:42:47 GMT
Thanks for the link. Great that it is finally free available. |
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Post by Melanie on Aug 17, 2014 14:36:59 GMT
Chloris has priority over Carduelis
new comb. Chloris triasi (Sangster et al. 2011)
Sangster et. al: Taxonomic recommendations for British birds: seventh report In: Ibis (2011), 153, 883–892
onlinelibrary.wiley.com/doi/10.1111/j.1474-919X.2011.01155.x/abstract
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Post by Sebbe on Feb 13, 2021 11:33:22 GMT
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