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Rodents (Rodentia)
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Abstract
The Order Rodentia (represented by squirrels, mice, rats, guinea pigs, and others) contains 42% (2277) of all species and 39% (481) of all genera described for the Class Mammalia (1) (Fig. 1). If one includes the recently discovered extant Family Diatomyidae (2), the order contains 34 families (1). All early classifications of mammals and more recent cladistic analysis of morphological variation (craniodental, postcranial, fetal membrane) (4) support a monophyletic Rodentia. Although several early molecular phylogenetic studies questioned the validity of a monophyletic Rodentia (5, 6), more recent molecular data, based on either nuclear DNA (7–9) or a more thorough analysis of sequences of whole mitochondrial genomes (10), reveal support in favor of monophyly. In this review I will address phylogenetic relationships and divergence times for families within Rodentia.
Title: Rodents (Rodentia)
Description:
Abstract
The Order Rodentia (represented by squirrels, mice, rats, guinea pigs, and others) contains 42% (2277) of all species and 39% (481) of all genera described for the Class Mammalia (1) (Fig.
1).
If one includes the recently discovered extant Family Diatomyidae (2), the order contains 34 families (1).
All early classifications of mammals and more recent cladistic analysis of morphological variation (craniodental, postcranial, fetal membrane) (4) support a monophyletic Rodentia.
Although several early molecular phylogenetic studies questioned the validity of a monophyletic Rodentia (5, 6), more recent molecular data, based on either nuclear DNA (7–9) or a more thorough analysis of sequences of whole mitochondrial genomes (10), reveal support in favor of monophyly.
In this review I will address phylogenetic relationships and divergence times for families within Rodentia.
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