Pinheirodontidae
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Pinheirodontidae is a poorly known family of fossil mammals within the order Multituberculata. Remains are known from the earliest Cretaceous of Europe, (predominantly Portugal and Spain), but are so far restricted to teeth. These small plant-eaters lived during the "age of the dinosaurs". They're part of the informal suborder "Plagiaulacida".
The family Pinheirodontidae was named by Hahn G. and Hahn R. in 1999.
References
- Hahn & Hahn (1999), "Pinheirodontidae n. fam. (Multituberculata) (Mammalia) aus der tiefen Unter-Kreide Portugals". Palaeontographica Abt. A Vol. 253, pp.77-222.
(Pinheirodontidae n. fam. (Multituberculata) (Mammalia) from the deepest Lower Cretaceous of Portugal). - 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] (http://home.arcor.de/ktdykes/plagiau.htm) MESOZOIC MAMMALS; Basal Multituberculata, an Internet directory.