I recently watched an outstanding video on youtube which discusses the origin of dinosaurs. The book of Jasher and the book of Enoch (both referenced in the Holy Bible) discuss how the fallen angels mixed the DNA of: fallen angels, humans and beasts (mammals, reptiles, fish, birds etc) to create all kinds of hybrid creatures. Genesis 6 in the Bible also addresses how fallen angels mated with human females to produce hybrids. The dinosaurs are the result of fallen angels mixing their DNA with animals and humans. The reptilian shape-shifters are: part human/part reptile/part fallen angel beings, who can transform from human appearance to reptilian appearance at will. The reptilian shape-shifters have: dinosaur DNA, fallen angel DNA and human DNA within them. When the dinosaur and angel DNA is locked, shape shifters seem like regular human beings, but when there alternative locked DNA is unlocked, then they transform into bi pedal dinosaur/reptilian humanoids similar to a Velociraptor (species of dinosaur). Not all reptilians are evil as they have the choice to choose Jesus Christ over Lucifer. There are many benevolent reptilians out there.
Please watch the outstanding and informative dinosaur video below.