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Please use this identifier to cite or link to this item: http://hdl.handle.net/10362/4681

Title: Dinossauros e Portugal: dois casos menos conhecidos
Authors: Antunes, M. T.
Keywords: History
João Bonança
Dinosaur tracks
Late Cretaceous
Dinosaurs
extinction
Portugal
Issue Date: 28-Dec-2010
Abstract: After some remarks on the protection of sites recognized as most interesting, two less known items about dinosaurs and Portugal are dealt with. The first of theme concerns the first published account on dinosaur tracks. Jacinto Pedro Gomes, then (1884) preparing a report on the Cabo Mondego coal mines, was told of the occurrence of large footprint casts that subsequently were sent to the Museum of the Escola Politécnica in Lisbon. Gomes has shown drawings of them to B. Geinitz (Dresden), who ascribed the casts to dinosaurs. Karl Zittel (München), corroborated this viewpoint, and Louis Dollo (Brussels) reported them to Ornithopods. A posthumous note by GOMES (1915-1916) is the first scientific paper on dinosaur tracks in Portugal. However, it is not the first published report. João Bonança, a reporter, presented in his large book "HISTORIA / DA / LUZITANIA E DA IBERIA ..." (1891), a new (both irrealistic and useless) stratigraphic classification. He also replaced Zoological and Botanic Nomenclature by another one devised by him. Having seen the footprint casts at the Museum of the Escola Politécnica, he referred bird or dinosaur footprints in Cabo Mondego's Upper Jurassic, this being the first published report on such fossils as far as Portugal is concerned. The second theme is about Late Cretaceous dinosaurs from Viso, Aveiro and Taveiro. Faunas are marked by generalized nannism, and seem impoverished by previous extinctions of larger forms; their probable insular character has been acknowledged. Extinctions may well be explained by non-catastrophic causes. The general fall of temperatures may have been far more important.
URI: http://hdl.handle.net/10362/4681
Appears in Collections:FCT: DCT - Ciências da Terra

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