Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun Plural form of
perissodactyl .
Etymologies
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Examples
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Update (added 5-8-2006): a new paper just published by Nishahara et al. (2006) has reported new genetic support for a laurasiatherian clade composed of bats, perissodactyls, carnivorans and pangolins.
Archive 2006-08-01 Darren Naish 2006
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Update (added 5-8-2006): a new paper just published by Nishahara et al. (2006) has reported new genetic support for a laurasiatherian clade composed of bats, perissodactyls, carnivorans and pangolins.
We flightless primates Darren Naish 2006
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Like the perissodactyls, they are descended from the primitive five-toed plantigrade mammals of the lowest Eocene.
The Elements of Geology William Harmon Norton 1900
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This further modification is clearly traceable in some of the earlier perissodactyls, and occurs in the majority at the present time.
Darwin, and After Darwin (Vol. 1 and 3, of 3) An Exposition of the Darwinian Theory and a Discussion of Post-Darwinian Questions George John Romanes 1871
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Titanotheres, generally called brontotheres these days, were rhino-like Eocene perissodactyls: they've been discussed on Tet Zoo a few times.
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Thanks to their hoofed phalanges and to the general idea that these animals were somehow part of the 'ancestral stock' for artiodactyls, perissodactyls and other living hoofed mammals, mesonychians have traditionally been regarded as 'stem-ungulates' or, more formally, as members of Condylarthra.
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The fact that 'ungulates' as once imagined (see Prothero et al. (1988), where Ungulata includes artiodactyls, perissodactyls, cetaceans, dinoceratans, tethytheres, hyracoids and others) are clearly not monophyletic - instead they're scattered about the placental tree - means that 'archaic ungulates' are surely of diverse affinities too.
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It's an epic work, but hopefully it will spur some new interest in this bizarre-looking group of extinct perissodactyls.
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Instead they go elsewhere within the placental mammal clade Laurasiatheria, being (most surprisingly) closest to carnivorans, perissodactyls and artiodactyls (e.g.,
We flightless primates Darren Naish 2006
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Instead they go elsewhere within the placental mammal clade Laurasiatheria, being (most surprisingly) closest to carnivorans, perissodactyls and artiodactyls (e.g.,
Archive 2006-08-01 Darren Naish 2006
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