English中文简中文繁English मोबाइल
साइन इन साइन अप करें
अंग्रेजी-हिंदी > tribosphenic उदाहरण वाक्य

tribosphenic उदाहरण वाक्य

उदाहरण वाक्य
31.In 2001, however, an alternative suggestion was published that united it with the Cretaceous Australian " Ausktribosphenos " and the monotremes ( the echidnas, the platypus, and their extinct relatives ) into the clade Australosphenida, which would have acquired tribosphenic molars independently from marsupials and placentals.

32.""'Pappotherium " "'is an extinct genus of mammals from the Albian ( early Cretaceous ) of Texas ( USA ), known from a fossilized maxilla fragment bearing two tribosphenic molars, discovered within the Glen Rose Formation near Decatur, Wise County, Texas.

33.The Jurassic Argentinean " Asfaltomylos " and " Henosferus " and the Cretaceous Australian " Bishops " were later added to Australosphenida, and new work on wear in australosphenidan teeth has called into question whether these animals, including " Ambondro ", did have tribosphenic teeth.

34.For example, the dentition of the Early Cretaceous monotreme " Steropodon " is similar to those of " dryolestoids, which suggests that monotremes are related to some pre-tribosphenic therian mammals, but, on the other hand, the status of neither of these two groups is well-established.

35.Based in part on Martin and Rauhut's earlier work on wear facets in australosphenidans, they questioned the presence of a true functional protocone on the upper molars of non-monotreme australosphenidans none of which are known from upper teeth and consequently suggested that australosphenidans may not, after all, have had truly tribosphenic teeth.

36.Also in 2001, Denise Sigogneau-Russell and colleagues in their description of the earliest Laurasian tribosphenic mammal, " Tribactonodon ", agreed with the relationship between " Ausktribosphenos " and monotremes, but argued that " Ambondro " was closer to Laurasian tribosphenidans than to " Ausktribosphenos " and monotremes.

37.Under natural selection, organisms descending from different ancestors can evolve analogous structures and similar adaptations, a phenomenon known as convergent evolution . " The pseudo-tribosphenic teeth and the true tribosphenic teeth are great examples of convergent evolution and a great manifestation of how dental and feeding adaptation can be achieved by different lineages of mammals, " said Luo.

38.Under natural selection, organisms descending from different ancestors can evolve analogous structures and similar adaptations, a phenomenon known as convergent evolution . " The pseudo-tribosphenic teeth and the true tribosphenic teeth are great examples of convergent evolution and a great manifestation of how dental and feeding adaptation can be achieved by different lineages of mammals, " said Luo.

39.In their paper, Flynn and colleagues described " Ambondro " as the oldest mammal with tribosphenic molars the basic molar type of metatherian ( marsupials and their extinct relatives ) and eutherian ( placentals and their extinct relatives ) mammals, characterized by the protocone cusp on the upper molars contacting the talonid basin on the lower molars in chewing.

40.As in all true mammals, the tiny bones that conduct sound to the inner ear are fully incorporated into the skull, rather than lying in the jaw as in cynodonts and other premammalian synapsids; this feature, too, is now claimed to have evolved independently in monotremes and therians, although, as with the analogous evolution of the tribosphenic molar, this is disputed.

  अधिक वाक्य:   1  2  3  4  5
अंग्रेज़ी→नहीं। नहीं।→अंग्रेज़ी