Henkelodon

Henkelodon was a small mammal of the Upper Jurassic. It was a relatively early member of the extinct order of Multituberculata. Henkelodon was a European herbivore during 'the age of the dinosaurs'.
(For the more technically inclined, suborder "Plagiaulacida", family Paulchoffatiidae.)

Genus: Henkelodon Hahn G, 1977
'Henkel’s tooth'

Species: Henkelodon naias Hahn G, 1977
Place: Guimarota
Country: Portugal
Age: Kimmeridgian, Upper Jurassic
Remarks: It's known from one upper jaw.
The author and year were kindly supplied by Vince Ward. According to Kielan-Jaworowska & Hurum, 2001, (p.413), this genus was named in 1987. However, Hahn and Hahn 2000, (p.105), supports 1977.
Reference: Hahn G (1977), "Neue Schädel-Reste von Multituberculaten (Mamm.) aus dem Malm Portugals". Geologica et Palaeontologica, 11, p.161-186.
(New skull remains of Multituberculates (Mammalia) from the Malm of Portugal.)

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] (http://home.arcor.de/ktdykes/multis.htm) Multituberculata Cope, 1884. As that's my webpage, there are no issues of copyright. Trevor Dykes)