Cretaceous Early

Mesozoic 145.0–100.5 Mya 703 dinosaurs

The Cretaceous saw continued dinosaur evolution with the rise of ornithopods and early ceratopsians. Flowering plants first appeared and began to transform terrestrial ecosystems. Spinosaurus and other large theropods lived during this time.

Santanaraptor placidus

None

Carnivore

Sapeornis chaoyangensis

None

Carnivore

Sarmientichnus

None

Carnivore

Sasayamagnomus saegusai

None

Herbivore

Sauropelta

Ankylosauria

Herbivore

Sauropelta edwardsorum

None

Herbivore

Sauroplites scutiger

None

Herbivore

Sauroposeidon

None

Herbivore

Sauroposeidon proteles

None

Herbivore

Scansoriopteryx heilmanni

None

Carnivore

Schizooura lii

None

Carnivore

Scipionyx samniticus

None

Carnivore

Serendipaceratops arthurcclarkei

None

Herbivore

Shamosaurus scutatus

None

Herbivore

Shanag ashile

None

Carnivore

Shandongornipes muxiai

None

Carnivore

Shangyang graciles

None

Carnivore

Shanweiniao cooperorum

None

Carnivore

Shaochilong maortuensis

None

Carnivore

Shengjingornis yangi

None

Carnivore

Shenzhouraptor sinensis

None

Carnivore

Shenzhousaurus orientalis

None

Herbivore

Shuangmiaosaurus gilmorei

None

Herbivore

Siamodon nimngami

None

Herbivore

Siamopodus khaoyaiensis

None

Carnivore

Siamopodus xui

None

Carnivore

Siamotyrannus isanensis

None

Carnivore

Siamraptor suwati

None

Carnivore

Sibirotitan

None

Herbivore

Sibirotitan astrosacralis

None

Herbivore

Silutitan sinensis

None

Herbivore

Silvisaurus condrayi

None

Herbivore

Similicaudipteryx yixianensis

None

Omnivore

Similifaveoloolithus gongzhulingensis

None

Similiyanornis brevipectus

None

Carnivore

Sinocalliopteryx

None

Carnivore

Sinocalliopteryx gigas

None

Carnivore

Sinornis santensis

None

Carnivore

Sinornithoides

None

Carnivore

Sinornithoides youngi

None

Carnivore

Sinornithosaurus

None

Carnivore

Sinornithosaurus millenii

None

Carnivore

Sinosauropteryx

Theropoda

Carnivore

Sinosauropteryx prima

None

Carnivore

Sinotyrannus kazuoensis

None

Carnivore

Sinovenator

None

Carnivore

Sinovenator changii

None

Carnivore

Sinusonasus magnodens

None

Carnivore