Georges Léopold Chrétien Frédéric Dagobert Cuvier (1769 - 1832) was a French naturalist and zoologist. Of working class origins, he belonged to a new class of self-made scholars who worked their way to the top of academia. Cuvier was a major figure in natural sciences research in the early 19th century and was instrumental in establishing the fields of comparative anatomy and palaeontology through his work in comparing living animals with fossils. He is well known for establishing extinction as a factor and was the most influential proponent of "catastrophism" in geology in the early 19th century. Catastrophism was the theory, which proposed that catastrophic natural events caused the extinction of species. He opposed the evolutionary theories of Lamarck and Geoffroy Saint-Hilaire.
Cuvier speculated that there had been a time when reptiles were the dominant fauna rather than mammals. In 1796 he produced a paper on living and fossil elephants and in the same year in a second paper he described and analysed the fossil bones of a giant creature discovered in a cave in Patagonia naming it megatherium. He concluded that this skeleton represented yet another extinct animal and, by comparing its skull with living species of tree dwelling sloths, that it was a kind of ground dwelling giant sloth. In 1809 he identified and named the pterodactyl from a drawing of a fossil found in Bavaria.
There is a connection between the megatherium and the blue macaws in that Carlos Yamashita hypothesised in a paper published in 1997 that Anodorhynchus macaws were followers of extinct megafauna such as the megatherium or giant ground sloth.
Cuvier's most famous work is the Le Règne Animaldistribué d'après son organisation (first published in 1817; English: The Animal Kingdom, arranged according to its organisation, German: Das Tierreich nach Gestaltung unterteilt).
The ornithological part of third or so-called Disciples edition was a collaborative production after the death of Curvier by his pupils, by then eminent zoologists, under the supervision of Alcide D'Orbigny. It was in two volumes with 94 fine hand-coloured plates drawn by Edouard Traviès and engraved by Guyard, Fournier, Oudet and others.
In my English language edition, published in 1854 by Wm. S. Orr & Co, Amen Corner, Paternoster Row, London, there is an engraving of four birds, one of which is of the Hyacinthine Macaw, here called Prince Maximilian's Macaw after the description by Spix published in 1824 in Avium Brasiliensium Species Novae.
There follows the brief text accompanying Plate 55 on Page 228. The plate has drawings of the skull of a Scarlet Macaw (Aramacao) on either side of the engraving of the Hyacinthine Macaw.
Genre Perroquet Psittacus Linn.
Fig. 1 ARA HYACINTHA. Réduit à un huitième. Dessinée d'après nature.
Fig. 2 Tête. Osseuse vue de profil du ARA MACAO. Dessinée d'après nature, et réduite de moitié.
Fig 2a. La même tête vue de profil. Dessinée d'après nature.
Les Aras (Ara Kuhl) Pl. 55 fig. 1, 2
Dont les joues sont dénuées de plumes; ce sont des espèces d'Amerique la plupart fort grandes, et d'une plumage très brillant, qui en fait beaucoup apporter vivans en Europe.
Saturday 17th April 2021
A Spix’s macaw hatches in Brazil’s caatinga
Great news from Brazil. Cromwell Purchase and his team have successfully hatched a Spix’s macaw at the Release Center in Brazil. 52 Spix’s macaws were moved from Germany to the Spix’s Macaw Release Center in Brazil about a year a ... Read More »
" Naturam expellas furca, tamen usque recurret "
( If you drive out nature with a pitchfork, she will soon find a way back)
Horace (65-8 BC)