Publications in the Year: 1999

Conference Paper

Mateus, O.  1999.  Monofilia dos dinossauros e Origem das Aves: Serão as aves dinossauros? Actas do II Congresso de Ornitologia. (P, P Catry, F Moreira, Eds.).:184-185., Lisboa: SPEA- Sociedade Portuguesa para o Estudo das Aves Abstract
n/a

Journal Article

Bonaparte, JF, Mateus O.  1999.  A new diplodocid, Dinheirosaurus lourinhanensis gen. et sp. nov., from the Late Jurassic beds of Portugal. Rev. Mus. Argent. Cienc. Nat. 5:13-29., Number 2 Abstractbonapartemateus1999_sauropod_dinheirosaurus_portugal.pdfWebsite

Presacral vertebrae of a new Diplodocidae from the Late Jurassic Amoreira-Porto Novo Formation of Lourinhã, Portugal are described and figured. Dinheirosaurus lourinhanensis gen. et sp. is diagnosed by well developed accessory articulations derived from the hyposphene, exposed in lateral view; and by the smaller dorsoventral length of the lower section of the neural arch. It is considered that the organization of the dorsal neural arch of Dinheirosaurus is more derived than in Diplodocus, except in the dorsoventral development of the lower portion of it, which is higher (more derived) in the latter. Possibly the isolated geography of Portugal in the Late Jurassic gave rise to the distinct characters of this new genus.

Allain, R, Taquet P, Battail B, Dejax J, Richir P, Veran M, Limon-Duparcmeur F, Vacant R, Mateus O, Sayarath P, Khenthavong B, Phouyavong S.  1999.  Un nouveau genre de dinosaure sauropode de la formation des Gres superieurs (Aptien-Albien) du Laos, oct. Comptes Rendus de l'Academie des Sciences - Series IIA - Earth and Planetary Science. 329:609-616., Number 8 Abstractallain_taquet_battail_dejax_richir_mateus_et_al_1999_un_nouveau_genre_de_dinosaure_sauropode_de_la_formation_des_gres_superieurs_aptien-albien_du_laos.pdfWebsite

The partly-articulated postcranial remains of two sauropod skeletons recently found in Tang Vay (Savannakhet Province, Laos) are assigned to the species Tangvayosaurus hoffeti (nov. gen., nov. sp.). The derived characters present in the new material confirm the presence of titanosaurs in South East Asia at the end of the Early Cretaceous, but are not consistent with its placement within Titanosaurus genus as first done by Hoffet in 1942. All of the material relative to this species is therefore referred to a new genus: Tangvayosaurus. Tangvayosaurus and the Thai genus Phuwiangosaurus have strong affinities and are considered as primitive titanosaurs.

Mateus, O.  1999.  Upper Jurassic dinosaurs of Lourinhã (Portugal). Journal of Vertebrate Paleontology. 19(Suppl. to 3):62A., Number (Suppl. to 3)mateus_1999_upper_jurassic_lourinha_portugal_svp_1999_abstracts.pdfWebsite