There are hundreds of known dinosaur genera and even more individual species. However, here are the names of a few of the major groups, and an example of each:
Saurischia
Theropoda (bipedal carnivores; T-rex)
Sauropodamorpha (long necked, generally large, plant eating dinosaurs; Apatosaurus)
Ornithischia
Neornithischia
Ornithopoda (small, bipedal plant eaters, and also large, common plant eaters without armor or horns; Edmontosaurus)
Ceratopsia (horned herbivores [ceratopsians]; Triceratops)
Pachycephalosauria (armored-headed bipeds [pachycephalosaurs]; Pachycephalosaurus)
Thyreophora
Ankylosauria (armor covered herbivores; Ankylosaurus)
Stegosauria (herbivores with bony plates sticking vertically upward from thei backs; Stegosaurus)
Sinornithosurus was one of them.
dinosaurs
Some bipdeal dinosaurs from the Cretaceous with names beginning in "A" include: Achillobator Austroraptor Adasaurus Atrociraptor
carnivores
The paleontologists who found them named them.
plant eaters
Carnivores
Yolko, Shelly, and Eggwardo
Two of the earliest dinosaurs to be named were the Iguanodon (a plant-eater) and Megalosaur (a meat-eater).
There were no ocean dwelling dinosaurs. Large marine reptiles that are often thought of as dinosaurs include plesiosaurs, pliosaurs, mosasaurs, and icthyosaurs.
stegosaurus and ankylosaurus...
dinosaurs and many more