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Temporal range: Late Jurassic
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Multituberculata
Family: Paulchoffatiidae
Genus: Kielanodon
G. Hahn, 1987

  K. hopsoni

Kielanodon is an extinct mammal of the Portuguese Upper Jurassic. It was a relatively early member of the also extinct order of Multituberculata. It eked out a living during the Mesozoic era, also known as the "Age of the Dinosaurs." It is in the suborder Plagiaulacida, family Paulchoffatiidae.

The genus Kielanodon, meaning "Kielan’s tooth" after Zofia Kielan-Jaworowska, was named by Hahn G. in 1987. The main species, Kielanodon hopsoni, also named by Hahn, is known from fossils found in the Kimmeridgian (Upper Jurassic)-age strata of Guimarota, Portugal. The identification is based on three upper jaws.


  • Hahn (1987), Neue Beobachtungen zum Schädel- und Gebiss-Bau der Paulchoffatiidae (Multituberculata, Ober-Jura). Paleovertebrata 17 p. 155-196, 5 plates.

(New observations on the skull and jaw constructions in Paulchoffatiidae (Multituberculata, Upper Jurassic)).

  • Hahn G & Hahn R (2000), Multituberculates from the Guimarota mine, p. 97-107 in Martin T & Krebs B (eds), Guimarota - A Jurassic Ecosystem, Verlag Dr Friedrich Pfeil, München.
  • Kielan-Jaworowska Z & Hurum JH (2001), Phylogeny and Systematics of multituberculate mammals. Paleontology 44, p. 389-429.
  • Much of this information has been derived from [1] Multituberculata Cope, 1884.