Superregnum: Eukaryota
Cladus: Orthokaryota
Cladus: Neokaryota
Cladus: Scotokaryota
Cladus: Podiata
Cladus: Amorphea
Cladus: Obazoa
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: ParaHoxozoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Cladus: Olfactores
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Cladus: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Metopophora
Cladus: Haptodontiformes
Cladus: Sphenacomorpha
Cladus: Sphenacodontia
Cladus: Therapsida
Cladus: Theriodontia
Cladus: Eutheriodontia
Cladus: Cynodontia
Cladus: Epicynodontia
Cladus: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliamorpha
Cladus: Mammaliaformes
Classis: Mammalia
Cladus: Theriimorpha
Cladus: Theriiformes
Cladus: Trechnotheria
Infraclassis: †Allotheria
Ordo: †Multituberculata
Subordo: †Plagiaulacida
Familia: †Paulchoffatiidae
Subfamilia: †Paulchoffatiinae
Genus: †Pseudobolodon
Species: †P. oreas
Name
Pseudobolodon Hahn, 1977
References
Primary references
Hahn, G. 1977. Neue Schaedel-Reste von Multituberculaten (Mamm.) aus dem Malm Portugals. Geologica et Palaentologica 11: 161–186.
Pseudobolodon was a relatively early member of the also extinct order of mammals, Multituberculata. It lived in Portugal during the Upper Jurassic, part of the "age of the dinosaurs." It lies within the suborder "Plagiaulacida" and family Paulchoffatiidae.
The genus Pseudobolodon ("false Bolodon") was named by Hahn G. in 1977 based on two species. A third one-time species, P. robustus (Hahn, 1978), seems to have transformed into Meketibolodon robustus (Hahn G. 1978).
The species Pseudobolodon krebsi was named by Hahn G. & Hahn R. in 1994. Fossil remains consisting of two upper jaws have been found in the Kimmeridgian (Upper Jurassic)-age strata of Guimarota, Portugal. As for the septomaxilla mentioned in the title of the reference: "A small, triangular bone is placed between the premaxilla and the maxilla; this bone is interpreted as a septomaxilla. This is a bone that is typical for lower tetrapods (amphibians, reptiles), but is usually absent in mammals", (Hahn & Hahn 2000, p. 98). The premaxilla is the front bit of your upper jaw, while the maxilla is the side of it. Like other existing mammals, humans don't have this septomaxilla.
The species Pseudobolodon oreas was named by Hahn G. in 1977. Remains consisting of seven upper jaws have been found in Kimmeridgian (Upper Jurassic)-age strata of Guimarota, Portugal.
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.
Kielan-Jaworowska, Z. & Hurum, J.H. (2001), "Phylogeny and Systematics of multituberculate mammals", Paleontology 44, p. 389-429.
Hahn & Hahn (1994), Nachweis des Septomaxillare bei Pseudobolodon krebsi n.sp. (Multituberculata) aus dem Malm Portugals, p. 9-29, in Miscellanea Palaeontologica 3. - 531 p., 67 pl., Berl. Geowiss. Abh. Vol 13, editors Kohring R & Martin T. (Evidence of the septomaxilla in Pseudobolodon krebsi n.sp. (Multituberculata) from the Malm of Portugal.)
Much of this information has been derived from [1] Multituberculata Cope, 1884.
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