Chapter 3 Petroleum Systems by Leslie B. Magoon and Edward A. Beaumont Leslie B. Magoon Leslie B. Magoon graduated from the University of Oregon in Eugene in 1966 with an M.S. degree in geology. Presently‚ he is a senior research geologist with the U.S. Geological Survey‚ Menlo Park‚ California. Prior to that he was with Shell Oil Company for 8 years as an exploration geologist. Over the last 32 years‚ he has been involved in petroleum geology with emphasis on geochemistry in the Rocky Mountain
Premium Petroleum geology Petroleum Cretaceous
Teachers. N.p.‚ n.d. Web. 10 Jan. 2014. 3) "Why Did the Dinosaurs Die Out?" History.com. A&E Television Networks‚ n.d. Web. 07 Jan. 2014. 4)"Meteorite Impact and the Mass Extinction of Species at the Cretaceous/Tertiary Boundary."Meteorite Impact and the Mass Extinction of Species at the Cretaceous/Tertiary Boundary. N.p.‚ n.d. Web. 11 Jan. 2014. 5) “Volcanism Theory." K/T Extinction. N.p.‚ n.d. Web. 08 Jan. 2014. 6) http://www.pnas.org/content/87/19/7608.full.pdf 7)"Recent Discoveries." Recent
Premium Dinosaur Extinction event Earth
Triceratops is a genus of herbivorous ceratopsid dinosaur which lived during the late Maastrichtianstage of the Late Cretaceous Period‚ around 68 to 65 million years ago (Mya) in what is now North America. It was one of the last dinosaur genera to appear before the great Cretaceous–Paleogene extinction event.[1] The term Triceratops‚ which literally means "three-horned face‚" is derived from the Greek τρί- (tri-) meaning "three"‚ κέρας (kéras) meaning "horn"‚ and ὤψ (ops) meaning "face".[2] Bearing
Premium Dinosaur Cretaceous Mammal
Montana Paleontologists Compile Growth Series Analyses Adversely Affecting Dinosaur Species Diversity Holly Brown ABSTRACT The purpose of this paper is to report the findings of paleontologists Horner‚ Scanella‚ Goodwin and others regarding their study of growth series analysis in dinosaurs. They have provided evidence that what once was considered multiple different species of dinosaurs are actually varying stages of development in one genus. Utilizing the extensive fossil record at hand for
Premium Dinosaur Cretaceous Extinction
Quetzalcoatlus northropi is an azhdarchid pterosaur known from the Late Cretaceous of North America and one of the largest known flying animals of all time. It was a member of the Azhdarchidae‚ a family of advanced toothless pterosaurs with unusually long‚ stiffened necks. The Quetzalcoatlus was first discovered in Texas in 1971 by geology graduate student Douglas A. Lawson. The feeding habits of Quetzalcoatlus are controversial. Originally‚ it was assumed to catch fish and crustaceans‚ like most
Premium Dinosaur Extinction Paleontology
Ceratopsians and Pachycephalosaurs Around 144 million years ago‚ began the emergence of the Ornithischian dinosaurs during the cretaceous period and diversified into North America and Asia. Ornithischians were classified as having a hip structure similar to that of birds‚ although they are not the descendants of birds. Marginocephalians‚ meaning "fringed heads" are a group of Ornithischians that have a distinctive skull structure‚ consisting of a slight shelf or bony frill on the back of the
Premium Dinosaur Skull Cretaceous
person‚ group‚ or force that opposes or attacks; opponent; enemy; foe.- [ad-ver-ser-ee]- noun undergraduate- a student in a university or college who has not received a first‚ especially a bachelor’s‚ degree.- [uhn-der-graj-oo-it‚ -eyt]- noun Cretaceous- Of or belonging to the geologic time‚ system of rocks‚ and sedimentary deposits of the third and last period of the Mesozoic Era‚ characterized by the development of flowering plants and ending with the sudden extinction of the dinosaurs and many
Premium Reptile Cretaceous Crocodile
the claws‚ the wings‚ and the inherited able to fly. The Archaeopteryx lived in the Jurassic Era. That eventually ended in extinction. “The Cretaceous Tertiary or K-T extinction‚ which was a mass extinction of the animals and plant species that were on Earth that occurred over million years ago. This served as conclusion of the Cretaceous period” (Alvarez‚ Alvarez‚ Asaro‚ and Michel).
Premium Dinosaur Evolution Extinction
Dinosaurs lived on earth 65 million years ago. They lived on the earth much before any human being was born. They ruled the earth for over 165 million years‚ till 65 million years ago. They were huge monsters‚ even bigger than elephants. The word "dinosaur" was taken from a Greek word which means terrible lizard. But they weren’t exactly lizards. Lizards are one type of reptile and dinosaurs are another type. Not all dinosaurs were giants. Some dinosaurs were no bigger than small dogs. The smallest
Premium Dinosaur Cretaceous
like mammals and others birds‚ warm blooded. Dinosaurs are creatures that lived on Earth around 251 million years ago. Dinosaurs lived in the Mesozoic Era. This era contained three separate subsections: the Triassic Era‚ the Jurassic Era‚ and the Cretaceous. When the Mesozoic Era ended‚ most or a majority of the dinosaurs were extinct due to a catastrophic event that is still unknown to us today. Dinosaurs walked in an upright position‚ some dinosaurs used two legs‚ other used four to walk and move
Premium Dinosaur Evolution Paleontology