origin of the parasitic feeding guilds in terrestrial ecosystems ... and shared the seas with ichthyosaurs, plesiosaurs, and other marine reptiles. plesiosaur ...
Nervous system develops from dorsal nerve cord. Embryos have pharynx with slits ... Marine plesiosaurs & ichthyosaurs. Dinosaurs and pterosaurs. Living Reptiles ...
Title: Lecture x xx Author: Dr Joe Cain Last modified by: Carina Ancell Created Date: 1/15/2004 2:04:56 PM Document presentation format: On-screen Show (4:3)
Fossils were found in England, Northern France, Russia and South America. Liopleurodon ... 6 meters long. Weighed 3 tons. Fossils found in Europe and Argentina ...
Mesozoic Era (Age of the Dinosaurs) 225,000,000 years ago to 65,000,000 years ago Warm Climate Three Periods Triassic Jurassic Cretaceous Triassic Period (225-180 MYA ...
Cretaceous turtle Archelon Mosasaurs Giant marine lizards (the Komodo Dragon is closest living relative to these) Mosasaurs Evolved from land lizard, ...
... ants and bees Are these evolutionary arrivals unrelated to the ... 50 of the 500 modern families had arisen Cretaceous insect radiation New groups evolved ...
Water moves heat around the planet; tectonics determines how ... Seafloor spreading causes bulges in ocean basins. Big enough bulges and/or lots of them ...
Ichnology Ichnology is a subfield of geology that deals with traces of organismal activity. The area of ichnology concerned with trace fossils is paleoichnology.
Snakes and lizards. Thecodonts (ancestral group of higher diapsids) Diapsids ... day lizards) was the sprawling stance imposed by the position of the legs ...
Historical Geology Lecture 3 Fossilization A community is the set of all populations that inhabit a certain area. Communities can have different sizes and boundaries.
Common North American painted turtle 'Amphibia' Amniota ... 'Horny-toads' are not toads. Komodo dragon largest living lizard. Meditteranean chaemelon ...
Amniotes through Eutherians Chapter 34.6-34.8 By: Francisco Berrios and Siria Arzuaga Amniotes A group of tetrapods that trace back to the same common ancestor.
Life of the Mesozoic Era main points .. 1.marine invertebrates that survived end Permian extinction diversified and repopulated the seas 2. flowering plants evolve ...
Figure 3.1 Paleozoic amphibians, Crassigyrinus (group, incertae sedis) and Diplocaulus (Nectridea). Adapted from Milner et al., 1986, and Milner, 1980.
Macroevolution Evolutionary change above a species Evolution on a grand scale Species in a new habitat Mass extinctions Early Earth ... EARLY TETRAPODS ...
Acid preparation of fossils using sulfamic acid, a weak organic acid, and its advantages over acetic and formic acid preparation Carlos B. Padilla & Mary Luz Parra
Chordates Characteristics common to ALL chordates Dorsal nerve cord Pharyngeal slits Notochord Tail Dorsal nerve cord Pharyngeal Slits The wall of the pharynx is ...
Class Chondrichthyes Herpetology is study of: Class Osteichthyes Class Mammalia Dinosauria Crocodilia Testudines Class Amphibia Class Agnatha Class Aves
Cambrian fauna: trilobites, inarticulate brachiopods, primitive molluscs & echinoderms ... Among arthropods, the shell-crushing crabs are the big news ...
Chordates Characteristics common to ALL chordates Dorsal nerve cord Pharyngeal slits Notochord Tail Dorsal nerve cord Pharyngeal Slits The wall of the pharynx is ...
if dinosaurs were dumb and slow, why were they the dominant life form for 150my? ( No non-dinosaur larger than a turkey walked the land during the age of dinosaurs) ...
New Vocabulary: A beast To pass by the lake To attack a man To save a man The modern legend To pray A major tourist attraction A surgeon To confess Loch is a ...
Higher Chordates Amphibia, Reptilia, & Aves Subphyla Vertebrata Evolution of tetrapods One of the most significant events in vertebrate history was when the fins of ...
Too heavy to have traveled very far. The meteorite that made this crater Entered the atmosphere at about 140,000 mph Ignited a jet of flame in its path, ...
Cretaceous System was named in 1822 for deposits that are 'chalky' ... Carnivores T. rex, terrestrial crocs lions. Flying scavengers flying reptiles vultures ...
Title: No Slide Title Author: John Steven Scheibe Last modified by: Computer Services Created Date: 11/26/1999 11:31:18 PM Document presentation format
... into the Archosauromorpha (Crocs, birds, pterosaurs, and ... differently than crocs. move nares to top of skull. Saurischia. Palaeopoda (4-legged gait) ...
Dinoflagellates Introduction Dinoflagellates are unicellular, flagellated protists The first modern dinoflagellate was described by Baker in 1753 The dinoflagellates ...
... have shown that the earliest tetrapods had more than five fingers and toes. ... Sixty-five m.y.a., the last of the giant marine diapsids became extinct. ...