''Meketibolodon'' is a

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

of extinct mammal from the Kimmeridgian (Upper

Jurassic The Jurassic ( ) is a Geological period, geologic period and System (stratigraphy), stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The J ...

) Camadas de Guimarota of Guimarota,

Portugal Portugal, officially the Portuguese Republic, In recognized minority languages of Portugal: :* mwl, República Pertuesa is a country located on the Iberian Peninsula, in Southwestern Europe, and whose territory also includes the Macaronesian ...

. It was a relatively early member of the also extinct order

Multituberculata Multituberculata (commonly known as multituberculates, named for the multiple tubercles of their teeth) is an extinct order of rodent-like mammals with a fossil record spanning over 130 million years. They first appeared in the Middle Jurassic, ...

suborder Order ( la, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between family and class. In biological classification, the order is a taxonomic rank used in the classification of organisms and ...

Plagiaulacida Plagiaulacida is a group of extinct multituberculate mammals. Multituberculates were among the most common mammals of the Mesozoic, "the age of the dinosaurs". Plagiaulacids are a paraphyletic grouping, containing all multituberculates that lie ...

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Paulchoffatiidae Paulchoffatiidae is a family of extinct mammals that lived predominantly during the Upper Jurassic period, though a couple of genera are known from the Early Cretaceous. Fossils have been reported from Europe (Portugal, Spain, Germany and England ...

. The genus was named by Hahn G. in 1993 based on nine specimens of lower jaw. "''Meketibolodon'' (Hahn 1993) is distinguished from the other genera

f Paulchoffatiidae F, or f, is the sixth letter in the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''ef'' (pronounced ), and the plural is ''efs''. Hist ...

by two characters: the tooth row is significantly convexly curved upwards, and the corpus mandibulae has angled margins ventrally (Hahn and Hahn 1998b). The incisor is more strongly curved than it is the case in ''

Paulchoffatia ''Paulchoffatia'' is a genus of extinct mammal of the Upper Jurassic - Lower Cretaceous. It was a relatively early member of the also extinct order Multituberculata, within the suborder " Plagiaulacida" and family Paulchoffatiidae. It lived in ...

'', and its root is longer. The corpus mandibulae is similarly massive to that in ''Paulchoffatia''" (Hahn and Hahn 2000, p. 105). The corpus mandibulae is the part of the lower jaw beneath the tooth row, and ''mekéti'' (μηκέτι) is

Greek Greek may refer to: Greece Anything of, from, or related to Greece, a country in Southern Europe: *Greeks, an ethnic group. *Greek language, a branch of the Indo-European language family. **Proto-Greek language, the assumed last common ancestor ...

for 'no longer'.

References

* Hahn G. (1978), ''Neue Unterkiefer von Multituberculaten aus dem Malm Portugals''. Geologica et Palaeontologica 12, p. 177-212. ''(A new multituberculate lower jaw from the Malm of Portugal.)'' * Hahn G. and Hahn R. (2000), ''Multituberculates from the Guimarota mine'', p. 97-107 in Martin T & Krebs B (eds), ''Guimarota - A Jurassic Ecosystem'', Published by Dr Friedrich Pfeil, Münich, Germany. * Kielan-Jaworowska Z. and Hurum J.H. (2001), ''Phylogeny and Systematics of multituberculate mammals''. Paleontology 44, p. 389-429. * Much of this information has been derived fro

Multituberculata Cope, 1884. Multituberculates Late Jurassic mammals Fossils of Portugal Prehistoric mammal genera {{Jurassic-mammal-stub