Araripesaurus castilhoi, Lower Cretaceous, the first pterosaur named from this region in northeastern Brazil, is based on only a single partial wing. Its wingspan can be estimated to be about 6.5-8 feet. The specimen is nearly fully grown, and is probably most similar to ornithocheirids like Anhaunguera. Like many other ornithocheiroids, it may have had twin crests near the tips of its jaws. Araripesaurus was likely an aerial fisher, soaring over the waves of the young Atlantic Ocean.
A reconstruction of an early giant among horned dinosaurs still carries the label Pentaceratops among the fossils in the Sam Noble Museum of Natural History in Norman, Okla., but may deserve to be considered a new species, Titanoceratops.
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Name: Piatnitzkysaurus (Greek for "Piatnitzsky's lizard"); pronounced pyat-NIT-skee-SORE-us Habitat: Woodlands of South America Historical Period: Middle Jurassic (175-165 million years ago) Size and Weight: About 14 feet long and 1,000 pounds Diet: Meat Distinguishing Characteristics: Long, stiff tail; bipedal stance; ridges on snout