| Proalbionbaatar Temporal range:
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | †Multituberculata |
| Family: | †Albionbaataridae |
| Genus: | †Proalbionbaatar |
| Species: | †P. plagiocyrtus
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| Binomial name | |
| †Proalbionbaatar plagiocyrtus Hahn G. & Hahn R., 1998
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Proalbionbaatar is a small mammal from the Upper Jurassic of Guimarota, Portugal. It's the most derived member of the order Multituberculata known from that locality, and shared the world with the much larger dinosaurs. It lies within the suborder "Plagiaulacida" and family Albionbaataridae.
The genus Proalbionbaatar was named by Hahn G. and Hahn R. in 1998, based on a single species. The name refers to it being both earlier and more basal than Albionbaatar, a broadly similar form known from the Lower Cretaceous of Dorset, England.
The species Proalbionbaatar plagiocyrtus was named by Hahn G. and Hahn R. in 1998. Fossil remains are known from the Kimmeridgian (Upper Jurassic)-age strata of Guimarota, Portugal. Remains are presently restricted to two isolated upper molars, which are smaller than the corresponding teeth of paulchoffatiids (Paulchoffatiidae is the best represented multi group from Guimarota). These teeth also have more cusps, which are arranged in two rows. (Hahn & Hahn 2000, p. 106).
References[edit]
- Hahn & Hahn (1998), Neue Beobachtungen an Plagiaulacoidea (Multituberculata) des Ober-Juras 4. Ein Vertreter der Albionbaartaridae im Lusitanien Portugals. Berliner geowissenschaftliche Abhandlungen E 28, p. 85-89.
(New observations of Plagiaulacoidea (Multituberculata) from the Upper Jurassic. 4. A representative of Albiobaataridae in the Lusitanien of Portugals.)
- 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 JH (2001), "Phylogeny and Systematics of multituberculate mammals". Paleontology 44, p. 389-429.
- With much thanks to David Marjanovic for some information.
- Much of this information has been derived from [1] MESOZOIC MAMMALS; Plagiaulacidae, Albionbaataridae, Eobaataridae & Arginbaataridae, an Internet directory.
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction