Sunnyodon is a tiny, extinct mammal, probably of the Lower Cretaceous. It was a relatively early member of the also extinct order of Multituberculata. It lived in obscurity in southern Engand during 'the age of the dinosaurs'.
Genus: Sunnyodon Kielan-Jaworowska Z & Ensom PC, 1992
Species: Sunnyodon notleyi Kielan-Jaworowska Z & Ensom PC, 1992
Page reference: 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)
Sunnyodon
Scientific classification
Kingdom: Animalia
Therapsida
Class: Mammalia
Order: Multituberculata
Family: Paulchoffatiidae
Genus: Sunnyodon Species
S. notleyi
Ref.
(For the more technically inclined, suborder "Plagiaulacida", family Paulchoffatiidae.)
'Sunny tooth' (named after Sunnydown Farm)
Place: Purbeck Formation[?], Durlston Bay, Dorset
Country: England
Age: Upper Jurassic? or Lower Cretaceous
Remarks: This is a tooth based genus. According to current understanding, this Formation[?] is now considered to be early Lower Cretaceous, (personal communication, PC Ensom).
Reference: Kielan-Jaworowska & Ensom (1992), Multituberculate Mammals from the Upper Jurassic Purbeck Limestone Formation of southern England. Paleontology, 35, p.95-126.