Bonjour, espérant que cela puisse vous aider, voici quelques pistes:
- Les restes de dinosaures sont rares en Nlle Zélande, et je ne sais si des déterminations de genre ou d'espèce ont été avancées, les restes fragmentaires ont été rattachés à des 'groupes' au moins ( sauropodes, théropodes, ..)
Diplodocus ne me semble pas être le bon choix , car c'est un dinosaure américain du jurassique, alors qu'en Nlle Zélande , les seuls dinos connus sont crétacés me semble t il .
citation : ‘In contrast to well preserved local marine reptiles, New Zealand dinosaurs are rare and represented mostly by fragments that washed from land into shallow seas’ sur le site http://www.gns.cri.nz/Home/Learning/Science-Topics/Fossils/NZ-fossils/Fossil-animals/Dinosaurs-and-terrestrial-reptiles suivi de ‘The record has expanded greatly since the 1980s. Fossils from inland Hawke’s Bay, the Auckland region and the Chatham Islands include plant-eating sauropods, hypsilophodontids, ankylosaurs, and meat-eating theropods.
In 2009, fossil dinosaur footprints were identified in NW Nelson – the first known dinosaur traces from New Zealand, and the first evidence of dinosaurs in the South Island.’
- Article ‘technique’ sur les dinosauriens du crétacé australasien : A reappraisal of the Cretaceous non-avian dinosaur faunas from Australia and New Zealand: evidence for their Gondwanan affinities
Federico L. Agnolina Mart´ın D. Ezcurrab Diego F. Paisc and Steven W. Salisburyd∗
http://www.uq.edu.au/dinosaurs/documents/Angolin_et_al_2010.pdf
- Voir pour un contact éventuel ??? http://www.gsnz.org.nz/mangahouanga-stream-zealands-cretaceous-dinosaur-marine-reptile-site-p-97.html
- Autre reference http://www.otago.ac.nz/geology/research/paleontology/otago065921.pdf
- et sur : http://www.teara.govt.nz/en/fossils/page-5 , le texte ci-dessous :
Dinosaurs
New Zealand dinosaur fossils are known from three localities, and are about 145, 75 and 65 million years old. Although dinosaurs lived exclusively on land, it is interesting to note that fossils have been unearthed from shallow sea sediments, not terrestrial (lake or river) sediments.
The 75-million-year-old dinosaurs are about 10 million years younger than the separation of Zealandia from Gondwana. Over 10 million years of isolation they must have evolved considerably from their original Gondwanan ancestors, making them distinctly Zealandian dinosaurs. Only fragmentary bone fossils have been found, so the detailed identity of these dinosaurs remains obscure.
Sauropods and theropods
New Zealand’s first dinosaur fossil was found by Joan Wiffen and her friends in the late 1970s. Identification of this first find, the tail vertebra of a theropod dinosaur, was confirmed in 1980 by Australian vertebrate paleontologist Ralph Molnar. After that, Joan Wiffen found other bones which showed that 75 million years ago a community of dinosaurs existed including sauropods, a theropod and armoured dinosaurs. At least six different species have been discovered in the Mangahouanga Stream, inland Hawke’s Bay.
- Une recherche avec le mot clé ‘mangahouanga stream’ pourrait peut-être amener à d’autres infos plus précises
Guy 'fossilo19'