Always hate to come across these guys! “Ichthyosaurs: Shonisaurus accompanied by pack of Californosaurus” ~ Californosaurus (meaning "California lizard"): an extinct marine reptile (ok, ok ). It was 10 ft (3 m) long. It had 4 paddle-shaped flippers & sharp teeth in long, pointed jaws (looking a bit like a dolphin). They lived during the late Triassic period in seas that covered what is now California. It fed on fish & other small marine creatures.
SPINOSAURUS (meaning "spine lizard") is a genus of theropod dinosaur which lived in what is now North Africa, from the lower Albian to lower Cenomanian stages of the Cretaceous period, about 112 to 97 million years ago. Spinosaurus may be the largest of all known carnivorous dinosaurs, even larger than Tyrannosaurus and Giganotosaurus. Estimates published in 2005 and 2007 suggest that it was 12.6 to 18 metres (41 to 59 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons) in weight.