Sentences with phrase «placental mammals present»
Senior author, Professor Anjali Goswami (UCL Genetics, Evolution & Environment and UCL Earth Sciences), said: «Our findings refute those of other studies which overlooked the fossils of placental mammals present around the last mass extinction.
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But he quibbled with the conclusion, noting that previous studies indicated that some placental mammals were present in the late Cretaceous.
The team's results suggest that, even though there is no SRY gene in T. osimensis, the regulatory genes that normally turns on are present and operate as they do in other placental mammals.
«We discovered the existence of a short DNA sequence capable of activating a specific Hox gene, and which is present only in placental mammals and marsupials», explains Ruben Schep, the first author of the article.