|Name Translation||Obscure King|
|Size||Unknown, but the skull was about 17 millimeters.|
Adelobasileus is a genus of monotreme mammal from the Triassic. It is one of the earliest known mammals. Like the modern day platypus and echidna, it was a monotreme, meaning that it laid eggs. It is a transitional form between cynodonts and other Triassic mammals.