New remains of Hungarosaurus tormai (Ankylosauria, Dinosauria) from the Upper Cretaceous of Hungary: Skeletal reconstruction and body mass estimation

Attila Ösi, László Makádi

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Hungarosaurus tormai is a medium-sized nodosaurid ankylosaur that was described on the basis of four partial skeletons from the Santonian (Upper Cretaceous) of Hungary. In this paper, a new fifth skeleton and several isolated remains are described which greatly improve our knowledge of this primitive nodosaurid ankylosaur. Isolated cranial remains referred to juvenile individuals provide new information on the development of cranial ornamentation in nodosaurid ankylosaurs. Apart from both preserved mandibles with in situ dentition, the fifth partial skeleton contains several previously unknown limb elements (humerus, ulnae, radius) that indicate unusual limb proportions for Hungarosaurus compared with other ankylosaurs. On the basis of the five partial skeletons and the isolated remains, a skeletal and dermal armor reconstruction is attempted. Body mass calculations using three different methods yield an estimate of 650 kg for H. tormai.

Original languageEnglish
Pages (from-to)227-245
Number of pages19
JournalPalaontologische Zeitschrift
Volume83
Issue number2
DOIs
Publication statusPublished - Apr 9 2009

Keywords

  • Body mass estimation
  • Hungarosaurus
  • Late Cretaceous
  • Lharkút
  • Skeletal reconstruction

ASJC Scopus subject areas

  • Palaeontology

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