About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 51. Chapters: Aelurosauroides, Aelurosauropsis, Agnosaurus, Aloposauroides, Alrausuchus, Archaeosuchus, Baurioides, Broomosuchus, Chiwetasaurus, Chlynovia, Criocephalosaurus, Daptocephalus, Dimacrodon, Dinophoneus, Dixeya, Doliosaurus, Dragocephalus, Echinerpeton, Emydochampsa, Emydopsoides, Endogomphodon, Esoterodon, Eurosaurus, Evolution of mammals, Gornogomphodon, Heleosaurus, Herpetoskylax, Ianthodon, Ictidognathus, Lanthanostegus, Leptotrachelus, List of pelycosaurs, List of synapsids, List of therapsids, Lycaenodontoides, Lycaenoides, Lystrosauridae, Malasaurus, Mastersonia, Melinodon, Menadon, Microgomphodon, Microsyodon, Moschognathus, Moschoides, Myctosuchus, Nanogomphodon, Neotherapsida, Neotrirachodon, Nitosaurus, Orthopus, Pachyrhinos, Parakennemeyeria, Parascapanodon, Pardocephalus, Phocosaurus, Phoneosuchus, Pnigalion, Prolystrosaurus, Protoclepsydrops, Putillosaurus, Reiszia, Rhopalorhinus, Ruthiromia, Scullya, Scymnognathus, Scymnorhinus, Smilesaurus, Struthiocephaloides, Struthionops, Tangagorgon, Tapinocanius, Tetraceratops, Tigrisaurus, Titanogorgon, Trichasaurus, Venjukovia, Wangwosaurus, Watsoniella, Xyrospondylus. Excerpt: The evolution of mammals has passed through many stages since the first appearance of their synapsid ancestors in the late Carboniferous period. By the mid-Triassic, there were many synapsid species that looked like mammals. The lineage leading to today's mammals split up in the Jurassic; synapsids from this period include Dryolestes, more closely related to extant placentals and marsupials than to monotremes, as well as Ambondro, more closely related to monotremes. Later on, the eutherian and metatherian lineages separated; the metatherians are the animals more closely related to the marsupials, while the eutherians are those more closely related to the placentals. Since Juramaia, the...
