Sinodelphys is an extinct mammal from the Early Cretaceous, estimated to be 125 million years old. It was discovered and described in 2003 in rocks of the Yixian Formation in Liaoning …

Dec 12, 2003 · At 125 million years, the new fossil--dubbed Sinodelphys szalayi --pushes back the record of marsupials by 15 million years. (Molecular data suggest that the group could be …

Sinodelphys is distinctive from all Cretaceous eutherians but similar to metatherians in many derived pedal characters. The tarsals have a transversely broad but anteroposteriorly short …

Sinodelphys [1] is an extinct mammal from the Lower Cretaceous. It is a member of the infraclass Metatheria, the group which contains modern marsupials. To date, it is the oldest metatherian …

Sinodelphys szalayi is the earliest known relative of modern marsupials like kangaroos, wallabies, and opossums. Sinodelphys shows that although most modern marsupials live in Australia or …

Dec 12, 2003 · A mouse-size, tree-climbing animal that lived with the dinosaurs is the oldest known ancestor of modern marsupial mammals, scientists say. A report published today in the …

Jun 13, 2018 · Sinodelphys —the oldest purported metatherian—is from the same geographic area but is 35 million years younger, from the Jehol biota. Here we report a new Jehol …

Dec 11, 2003 · The newly found ancient animal, named Sinodelphys szalayi, isthe earliest known marsupial, meaning an animal with a pouch.

Dec 12, 2003 · Sinodelphys was one of several mammals in the Yixian biota, including: the earliest-known placental-relative Eomaia, the symmetrodonts Zhangheotherium and …

Aug 29, 2013 · When described in‭ ‬2003,‭ ‬Sinodelphys was the oldest confirmed and definitive marsupial mammal.‭ ‬Sinodelphys was very small,‭ ‬only about fifteen centimetres long,‭ ‬and is …