Guimarotodon
Guimarotodon is an extinct mammal of the Upper Jurassic. It was a relatively early member of the also extinct order of Multituberculata. It made its living nibbling plants as great big, and small, dinosaurs roamed the world.
Genus: Guimarotodon Hahn G, 1969
Species: Guimarotodon leiriensis Hahn G, 1969
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.
(This information has been derived from [1] (http://home.arcor.de/ktdykes/plagiau.htm) MESOZOIC MAMMALS; Basal Multituberculata, an internet directory. As that's my webpage, there are no issues of copyright. Trevor Dykes)
Guimarotodon
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Therapsida
Class: Mammalia
Order: Multituberculata
Family: Paulchoffatiidae
Genus: Guimarotodon Species
G. leiriensis
Ref.
(For the technically minded, suborder Plagiaulacida, family Paulchoffatiidae.)
'Guimarota tooth'
Remarks: "Guimarotodon Hahn 1969 exhibits a more slender Corpus mandibulae than either Paulchoffatia or Meketibolodon. The most conspicuous character of this genus is the morphology of the P3-4 and the M1.". The Corpus mandibulae is the part of the jaw below the tooth row. P3-4 are upper premolars[?], whilst M1 is an upper molar tooth.
"The incisor[?] is relatively little curved and its root is of similar length as that of Meketibolodon and extends to underneath the posterior premolars." (Both quotations from Hahn & Hahn 2000, p.105-106).
Place: Guimarota
Country: Portugal
Age: Kimmeridgian, Upper Jurassic
Remarks: Based on three lower jaws. The species name refers to the local town of Leiria[?].
Reference: Hahn (1969), Beiträge zur Fauna der Grube Guimarota Nr. 3. Die Multituberculata. Paleontographica, A, 133, p.1-100.
(Contributions on the fauna of the Guimarota mine no. 3. The Multituberculates.)
Kielan-Jaworowska Z & Hurum JH (2001), Phylogeny and Systematics of multituberculate mammals. Paleontology 44, p.389-429.