Allactaga elater Allactaga firouzi Allactaga hotsoni Allactaga major Allactaga severtzovi Allactaga vinogradovi Allactaga balikunica Allactaga bullata Allactaga sibirica Allactaga euphractica Allactaga tetradactyla The Miocene epoch is a period of time that extends from about 23 to 5. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anenomes) Placozoa (trichoplax) Subregnum Bilateria (bilateral symmetry) Acoelomorpha (basal) Orthonectida (flatworms, echinoderms, etc. ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Orders Subclass Multituberculata (extinct) Plagiaulacida Cimolodonta Subclass Palaeoryctoides (extinct) Subclass Triconodonta (extinct) Subclass Eutheria (includes extinct ancestors)/Placentalia (excludes extinct ancestors) Afrosoricida Artiodactyla Carnivora Cetacea Chiroptera Cimolesta (extinct) Creodonta (extinct) Condylarthra (extinct) Dermoptera Desmostylia (extinct) Embrithopoda (extinct) Hyracoidea Insectivora Lagomorpha Litopterna (extinct) Macroscelidea Mesonychia (extinct) Notoungulata (extinct) Perissodactyla Pholidota Plesiadapiformes... Families Many, see text The order Rodentia is the most numerous of all the branches on the mammal family tree. ... Genera 10 genera in 5 subfamilies A jerboa is a small jumping desert rodent of Asia and northern Africa that resembles a mouse with a long tufted tail and very long hind legs. ...
The genus Allactaga contains the four and five-toed jerboas of Asia. World map showing Asia. ...
Characteristics
These are hopping rodents of desert and semi-arid regions with long ears, tails and feet. All members of the genus have five toes except for a single species, the Four-toed Jerboa, Allactaga tetradactyla of Northern Africa, which has four. Members of this genus can jump distances of greater than one meter. Families See Classification Section The order Rodentia is the most numerous of all the branches on the mammal family tree. ... A dune in the Egyptian desert In geography, a desert is a landscape form or region that receives little precipitation - less than 250 mm per year. ... Semi-arid generally describes regions that receive low annual rainfall (25 to 50 cm /10 to 20 in) and generally have scrub or grass vegetation. ... An ear is an electric organ (much like a grand piano or keyboard) used by an animal to detect sound waves. ... The word tail in the English language has a number of meanings: Tail (anatomy) is used to describe the rear end of an animals body, especially when it forms a distinct, flexible appendage to the trunk; Tail can describe anything like an animals tail in form or position... This article needs to be cleaned up to conform to a higher standard of quality. ... Binomial name Allactaga tetradactyla The four-toed jerboa (Allactaga tetradactyla) is a small jumping desert rodent. ... Africa is the worlds second-largest and second most populous continent, after Asia. ...
They are usually nocturnal and members of the genus have relatively large eyes. Diet varies by species, with some feeding almost exclusively on vegetation and others being insectivorous. Captured specimens have lived over four years. A nocturnal animal is one that sleeps during the day and is active at night - the opposite of the human (diurnal) schedule. ... Any organism with a diet that consists chiefly of insects and similar small creatures is an insectivore. ...
Species
Genus Allactaga
Subgenus Allactaga
Allactaga elater - Small Five-toed Jerboa
Allactaga firouzi - Iranian Jerboa
Allactaga hotsoni - Hotson's Jerboa
Allactaga major - Great Jerboa
Allactaga severtzovi - Severtzov's Jerboa
Allactaga vinogradovi - Vinogradov's Jerboa
Subgenus Orientallactaga
Allactaga balikunica - Balikun Jerboa
Allactaga bullata - Gobi Jerboa
Allactaga sibirica - Mongolian Five-toed Jerboa
Subgenus Paralactaga
Allactaga euphractica - Euphrates Jerboa
Subgenus Scarturus
Allactaga tetradactyla - Four-toed Jerboa
References
Duff, A. and A. Lawson. 2004. Mammals of the World A Checklist. New Haven, Yale University Press.
Nowak, R. M. 1999. Walker's Mammals of the World, Vol. 2. Johns Hopkins University Press, London.
In Cricetulus the posterior maxillary foramen is absent.
In all dipodoid genera examined this foramen is situated in the orbital lamina of the frontal bone posterior to the maxillary-frontal suture.
All the remaining dipodoid rodents, Salpingotus, Allactaga, Alactagulus, Jaculus, Stylodipus, Dipus, Paradipus, Pygeretmus, Cardiocranius, and one Napaeozapus (AMNH 147363), lack the diploic foramen.
The small mammal assemblage (Table 15, 9) is dominated by gerbilline rodents (Gerbillus, Meriones and psammomys) and jerboas (Allactaga and Jaculus), and matches the modern rodent fauna fairly closely.
The presence of both Allactaga and Jaculus is interesting: both occur today in the Palmyra area, but Jaculus is close to its northern limit.
Harrison (1972: 412) comments that Allactaga is normally rarer than Jaculus when both are found together; but the reverse is true of the Douara Cave sample, which may indicate a shortage of softer, sandier terrain around the cave.
Feeds |
Contact