Kielanodon
Scientific classification
Kingdom: Animalia
Therapsida
Class: Mammalia
Order: Multituberculata
Family: Paulchoffatiidae
Genus: Kielanodon
Species
  K. hopsoni
Ref.

Kielanodon is an extinct mammal of the Portuguese Upper Jurassic. It was a relatively early member of the also extinct order of Multituberculata. It eeked out a living during 'the age of the dinosaurs'.
(For the more technically inclined, suborder "Plagiaulacida", family Paulchoffatiidae.)

Genus: Kielanodon Hahn G, 1987
'Kielan’s tooth' (Zofia Kielan-Jaworowska?)

Species: Kielanodon hopsoni Hahn G, 1987
Place: Guimarota
Country: Portugal
Age: Kimmeridgian, Upper Jurassic
Remarks: Based on three upper jaws.
Reference: 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.)

Page references: 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.

(This information has been derived from [1] Multituberculata Cope, 1884. As that's my webpage, there are no issues of copyright. Trevor Dykes)