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Topic: Rhizomyidae


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In the News (Tue 8 Dec 09)

  
 [No title]   (Site not responding. Last check: 2007-10-24)
Rhizomyidae: Echoing Teilhard and Young (1931), McKenna and Bell (1997) grouped Pararhizomys with the living Rhizomys and Cannomys, plus extinct Anepsirhizomys and Brachyrhizomys, in the tribe Rhizomyini.
There are indeed some characters shared with these taxa, such as incisors deeply rooted with well-developed capsules, lophodont cheek teeth, and modified myomorphy with anterodorsally shifted origin of the lateral masseter, which restricts and partially closes the ventral slit of the infraorbital foramen.
Flynn (1990) excluded Pararhizomys from Rhizomyidae based on several features and thought the most important character to be the lower second molar with two labial reentrants.
www.ga.gov.au /paleo/2005_1/zhaoqun5/system2.htm   (2050 words)

  
 [No title]   (Site not responding. Last check: 2007-10-24)
Young and Liu (1950) grouped Pararhizomys in the Brachyrhizomys group of Rhizomyidae.
Kowalski (1968) included the genus in Rhizomyidae when he described a nearly complete skull with lower jaws from Altan Teli, Mongolia.
Flynn (1982) considered Rhizomyidae to be distinct from Spalacidae and observed that Pararhizomys is possibly spalacid, but without detailed discussion.
www.nhm.ac.uk /hosted_sites/pe/2005_1/zhaoqun5/intro.htm   (324 words)

  
 Rhizomyidae Scientific classification Scientific classification Domain...
"Rhizomyidae" "Scientific classification Scientific classification" Domain Domain:Eukaryota Eukaryota Kingdom Kingdom:Animalia Animalia Phylum Phylum:Chordata Chordata Class Class:Mammalia Mammalia Order Order:Rodentia Rodentia Family Family:"Rhizomyidae" "Genera Genera" "Rhizomys" "Cannomys" "Tachyoryctes" The family "Rhizomyidae" of rodent rodents includes the Asia Asian bamboo rat bamboo rats and certain of the African mole rat African mole rats.
The closely related family Spalacidae Spalacidae consists of mole-like rodents found in Africa and the Middle East; these are also Myomorphic rodents.
Fossil Rodents (Rhizomyidae and Muridae from the Neogene Siwalik Deposits, Pakistan)
www.biodatabase.de /Rhizomyidae   (395 words)

  
 User talk:Seglea - Wikipedia, the free encyclopedia
I'm considering moving the Rhizomyidae page to Rhizomyinae as part of the work I've been doing with the Muroidea.
I haven't seen Rhizomyidae granted family status much in recent years except in some of the paleontological literature.
I thought I'd give you a heads up on it since you seem to be the principle person involved with that page.
en.wikipedia.org /wiki/User_talk:Seglea   (6963 words)

  
 RedOrbit NEWS | Phylogeny and Divergence-Date Estimates of Rapid Radiations in Muroid Rodents Based on Multiple Nuclear ...
In his influential classification, Simpson (1945) grouped the Muroidea into four families; the two fossorial groups Spalacidae and Rhizomyidae (which he did not think were closely related) included relatively few species, and the bulk of the diversity was split between the Cricetidae and the Muridae.
Their Rhizomyidae correctly grouped the African Tachyoryctes and the Asian Rhizomys, but most of their proposed groupings above the subfamily are incongruent with our findings.
Their Cricetidae in particular are polyphyletic, including not just the core members we recognize (Cricetinae, Sigmodontinae, Neotominae) but also taxa that are members of distantly related clades: the Spalacinae and Calomyscinae (which they place within the Cricetinae).
www.redorbit.com /modules/news/tools.php?tool=print&id=92552   (9038 words)

  
 Biology Profiles
Lond., 230: 117-134; (M. Baskevich, V. Orlov, & Assefa Mebrate, 1993) Notes on the karyology of Tachyoryctes splendens Ruppell 1936 (Rodentia: Rhizomyidae) from Ethiopia.
(Afework Bekele, M. Baskevich, V. Orlov, 1993) Notes on the karyology of Tachyoryctes splendens Ruppell 1936 (Rodentia: Rhizomyidae) from Ethiopia.
Notes on the karyology of Tachyorycies splendens Ruppell 1936 (Rodentia: Rhizomyidae) from Ethiopia.
www.ethiopianscienceprofessionalsnetwork.com /biology.php   (3567 words)

  
 IngentaConnect Evolutionary History of 4.5SH RNA   (Site not responding. Last check: 2007-10-24)
In the mouse genome, the 4.5SH RNA gene is a part of a long (4.2 kb) tandem repeat (
Here, we found that 4.5SH RNA genes are present only in rodents of six families that comprise the Myodonta clade: Muridae, Cricetidae, Spalacidae, Rhizomyidae, Zapodidae, and Dipodidae.
The analysis of complementary DNA derived from the rodents of these families showed general evolutionary conservation of 4.5SH RNA and some intraspecific heterogeneity of these RNA molecules.
www.ingentaconnect.com /content/oup/molbev/2005/00000022/00000007/art01546   (429 words)

  
 An investigation into small mammal community composition on Mount Elgon with reference to habitat modification by humans   (Site not responding. Last check: 2007-10-24)
The long-term evolutionary significance of montane forest may therefore be greater than its present very limited distribution suggests (Kingdon 1974).
The rat-like muroid rodents are divided into three families; the Rhizomyidae, Cricetidae and Muridae.
The latter two families form the focus of this study and are of particular interest.
www.lec.leeds.ac.uk /elgon/mammal1.html   (16588 words)

  
 Baruch Undergrad. Honors [1989]: Sheets, B.S. Cranial Anatomy of Jaculus orientalis...
The combination of characters more primitive than those in muroids and the presence of the unique, specialized condition of the infraorbital canal show that although dipodoids may be closely related to muroids, they cannot have evolved from any known member of that group.
Bugge, J. The cephlic arterial system in mole-rats (Spalacidae) bamboo rats (Rhizomyidae), jumping mice and jerboas (Dipodidea) and dormice (Gliroidea) with special reference to the systematic classification of rodents.
Corbet, G.B. The mammals of the Palearctic region: a taxonomic review.
newman.baruch.cuny.edu /digital/2000/honors/sheets_1989/sheets_1989.htm   (4230 words)

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