Encyclopedia

Probrachylophosaurus: Profile of a Prehistoric Giant Probrachylophosaurus Probrachylophosaurus (Pro-BRAH-key-LOAF-oh-SAWR-us; “Before Brachylophosaurus“) is a genus of hadrosaurid, or “duck-billed,” dinosaur that lived during the Late Cretaceous period, approximately 79.8 to 79.5 million years ago. Its fossils were discovered in Montana, USA, within the Judith River Formation. This dinosaur is particularly important because it shows an intermediate […]

“`html Proceratosaurus Proceratosaurus (PRO-ser-AT-oh-SAWR-us; “Before Ceratosaurus”) is a genus of small, carnivorous theropod dinosaur that lived during the Middle Jurassic period, about 168 to 166 million years ago. Its fossils were discovered in Gloucestershire, England. The name Proceratosaurus was given because scientists initially thought its nasal crest meant it was an ancestor of the later

Procerosaurus: Profile of a Prehistoric Giant Procerosaurus Procerosaurus (pro-SER-o-SAWR-us; “Before Ceratosaurus”) is a genus of dinosaur that lived during the Late Triassic period, around 227 to 201 million years ago, in what is now Germany. The name Procerosaurus was given because its discoverer, Friedrich von Huene, initially thought it might be an ancestor or early

Procompsognathus: Profile of a Small Triassic Theropod Procompsognathus Procompsognathus (pro-komp-sog-NAY-thus; “Before Compsognathus”) is a genus of small, bipedal carnivorous theropod dinosaur that lived during the Late Triassic period, around 210 million years ago. Its fossils were discovered in what is now Germany. The name Procompsognathus was given because paleontologists initially thought it might be an

“`html Prodeinodon Prodeinodon (pro-DEE-no-don; “Before Terrible Tooth”) is a genus of theropod dinosaur known from the Early Cretaceous period, approximately 125 to 100 million years ago. Fossils attributed to Prodeinodon, which consist mainly of isolated teeth, have been discovered in Mongolia and China. The genus was named by American paleontologist Henry Fairfield Osborn in 1924.

“`html Propanoplosaurus – Dinosaur Encyclopedia Propanoplosaurus Propanoplosaurus (pro-PAN-op-loh-SAWR-us; “Before Panoplosaurus”) is a genus of nodosaurid ankylosaurian dinosaur that lived during the Early Cretaceous period, approximately 115 to 112 million years ago (Aptian stage), in what is now Maryland, United States. The name “Propanoplosaurus” suggests it was an earlier relative of the dinosaur Panoplosaurus. Propanoplosaurus was

Prosaurolophus: Profile of a Prehistoric Giant Prosaurolophus Prosaurolophus (PRO-sawr-OH-loaf-us; “Before Saurolophus” or “Before the Ridged Crest”) is a genus of hadrosaurid, or “duck-billed,” dinosaur that lived during the Late Cretaceous period, approximately 76 to 74 million years ago. Its fossils have been discovered in North America, primarily in Alberta, Canada, and Montana, USA. The first

Protarchaeopteryx Protarchaeopteryx (PROH-toh-ar-kee-OP-ter-iks; “First Ancient Wing”) is a genus of small, feathered theropod dinosaur that lived during the Early Cretaceous period, approximately 124.6 million years ago. Its fossils were discovered in the Yixian Formation in Liaoning Province, China. The name Protarchaeopteryx suggests it was an early or primitive form related to ancient birds, although it

Protiguanodon: Profile of a Prehistoric Giant Protiguanodon Protiguanodon (PRO-tih-GWON-oh-don; “Before Iguanodon“) is a genus of ornithopod dinosaur that lived during the Early Cretaceous period, approximately 125 to 100 million years ago. Fossil remains of Protiguanodon have been discovered in what is now Mongolia and possibly parts of China. The name Protiguanodon indicates its evolutionary position

“`html Protoavis: Profile of a Controversial ‘First Bird’ Protoavis Protoavis (PROH-toh-AY-viss; “first bird”) is a genus name given to fossil remains discovered in Texas, USA, dating to the Late Triassic period, approximately 225 to 210 million years ago. The discoverer, Sankar Chatterjee, proposed that Protoavis was the earliest known bird, predating the more widely accepted