Shame you hate science so much.So they found a skull and they know it laid eggs and suckled its young. Great example of how evolutionists work. They take their fictional story, impose it on the evidence, and make up another fairy tale claim that they have some sort of transitional form.
Discovery of 'reptilian-mammal' fossil could rewrite history
Based upon what they learned about the skull
Huttenlocker and his colleagues placed Cifelliodon within a group called Haramiyida, an extinct branch of mammal ancestors related to true mammals.
So who were the Haramiyida?
Read the article in Nature.
Late-surviving stem mammal links the lowermost Cretaceous of North America and Gondwana | Nature
Great example of how the anti-evolutionists work- they mock what they cannot understand.