Pinheirodontidae
Scientific classification
Kingdom: Animalia
Therapsida
Class: Mammalia
Order: Multituberculata
Family: Pinheirodontidae
Genera
  Pinheirodon
  Bernardodon
  Ecprepaulax
  Gerhardodon
  Iberodon
  Lavocatia

Ref.

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'.
For the technically minded, they're part of the informal suborder of "Plagiaulacida".

Taxon: Pinheirodontidae Hahn G & Hahn R, 1999
Reference: 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).

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] MESOZOIC MAMMALS; Basal Multituberculata, an internet directory. As that's my webpage, there are no issues of copyright. Trevor Dykes)