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Paleoecology of the Arlington Archosaur Site, Texas'

OSTRICH. can exceed 100 kg. ARCHOSAURS. CROCODILES. PTEROSAURS. DINOSAURS & BIRDS ... Emu Ostrich. PALAEOGNATHS (b): Weakly flying Tinamous. 47. NEOGNATHS ...

PTEROSAURS. DINOSAURS & BIRDS. ARCHOSAURS. CROCODILES. PTEROSAURS. DINOSAURS & BIRDS. 4) CROCODILES. Estuarine Crocodile. What is going to bite me? ...

Early Triassic(251 mya)-Single Continent made up of Pangaea, ... In Late Triassic Epoch dinosaurs, pterosaurs and proto-crocs dominated. Archosaurs were common ...

EMBRYOLOGICAL FEATURES: amnion, chorion, ... Costal breathing (inhaling using movement of the ribs) ... Some pterodactyloids had wildly developed skulls. ...

Class Reptilia

pterosaurs. dinosaurs. upright posture. bipedal locomotion. large body size. diaspid phylogeny ... pterosaurs. dinosaurs. ornithischians. saurischians ...

III. Mesozoic Era A. Triassic Period (250 - 205 mya)

Crocs ( and dinos?) muscles pulling liver backward and 'rocking' pelvic bones ... How could phylogeny explain the difference between turtles and crocs? ...

Title: No Slide Title Author: Derek girman Last modified by: Derek Girman Created Date: 7/6/2000 7:18:50 PM Document presentation format: On-screen Show

... Lizards, snakes and amphisbaenians Fig 13-1 Iguanas, chameleons, agamids Skinks, alligator lizards, Snakes, amphisbaenians, Varanids, gila monsters, ...

Title: Slide 1 Author: Computing & Information Services Last modified by: Furman User Created Date: 5/15/2006 7:16:30 PM Document presentation format

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.

Title: Slide 1 Author: Computing & Information Services Last modified by: reviewer Created Date: 5/15/2006 7:16:30 PM Document presentation format

Analogous traits evolved from different traits in unrelated groups, but look similar due to convergent evolution. Not useful for determining relatedness.

allantois nitrogenous waste- ammonia. 5. Amnionic egg. embryo. chorion. amnion. Yolk. sac. allantois. shell. 6. Temporal fenestra. Orbit of eye. Anapsida- no ...

LECTURE 7: Mesozoic Era 248 mya 65 mya Periods of the Mesozoic Era Triassic 248 mya-206 mya Jurassic 206 mya-146 mya Cretaceous 146 mya-65 mya What Significant ...

Vertebrates Emily Reiss Josie Jacob-Dolan Tori Willbanks-Roos

Water moves heat around the planet; tectonics determines how ... Seafloor spreading causes bulges in ocean basins. Big enough bulges and/or lots of them ...

The genus Linanthus has a variety of breeding ... concepts in biology is that all life is connected through evolutionary history. The Tree of Life ...

Figure 34.2 Echinodermata Cephalochordata ANCESTRAL DEUTEROSTOME Chordates Urochordata Notochord Myxini Craniates Common ancestor of chordates Petromyzontida

Phylogeny of Birds Class Aves. Birds first appear, unambiguously, in the fossil record in the Jurassic (~ 150 mya). First bird is Archaeopteryx.

The skull bones of this herbivorous reptile have undergone enormous thickening. ... Dinocephalians: most were large, with massive bodies and thick skulls. ...

The Mesozoic is the time in which the dinosaurs lived. ... Other things may also have been responsible for the presence of the iridium, and ...

History of Vertebrates Ch. 20

Described by Fick's Law of Diffusion (see previous class) Very slow over any distance ... Majungatholus. atopus. Anatomy of the Mammalian Lung ...

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Ch. 23 Sec. 2 The Mesozoic Era * * * * * * * * * * * * * * * * * Reptiles became the dominant terrestrial animals during the Mesozoic while Pangaea broke apart.

Higher Chordates Amphibia, Reptilia, & Aves Subphyla Vertebrata Evolution of tetrapods One of the most significant events in vertebrate history was when the fins of ...

Herpetology: the Biology of Tetrapods (BIOEE 470 and 472) ... Why are there no fully marine crocs and so few fresh water mammal analogs (e.g. ...

Archaeopteryx lithographica. would have been classified as. a reptile except for feather ... Archaeopteryx lithographica. flight feathers. Chapter 33: ...

... into the Archosauromorpha (Crocs, birds, pterosaurs, and ... differently than crocs. move nares to top of skull. Saurischia. Palaeopoda (4-legged gait) ...

Title: La classification des tres vivants, Author: dbaude Last modified by: dbaude Created Date: 10/9/2005 2:21:19 PM Document presentation format

Amniotes are a group of tetrapods ... Archaeopteryx. Remains the oldest bird known. Figure 34.29. Toothed beak. Airfoil wing with ...

Life of the Mesozoic Era main points .. 1.marine invertebrates that survived end Permian extinction diversified and repopulated the seas 2. flowering plants evolve ...

How scientists use evidence to support theory. Popular ... Wishbone from Allosaurus (1996) T. rex has a wishbone! 1996 Allosaurus furcula (wishbone) found ...

Triassic - North America and Gondwanaland rift apart; ... Africa and Antarctica/Australia rift apart. End of Jurassic - Eurasia rotates, closing off Tethys, ...

Snakes and lizards. Thecodonts (ancestral group of higher diapsids) Diapsids ... day lizards) was the sprawling stance imposed by the position of the legs ...

Mesozoic Earth and Life History

Reconstructing and Using Phylogenies

Birds Chapter 27 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Excretory System Urine is formed in large, paired metanephric kidneys.

Slug Mold Dictyostelium

What does life on land versus life in the ocean require? What evidence supports that the ... Diapsid - two holes (lizards, dinosaurs, snakes, crocs) ...

Title: Ground Rules, exams, etc. (no make up exams) Text: read chapters 1, 6, 7, then 3, 4, 5, 8, etc. Profess -Knowledge - Study (rewire your brain!)

... infernalis (Big Bend National Park, Texas, photo:H.W.Greene) ... Longhorns (Bos taurinus, Wichita Mountains, OK; photos:H.W.Greene) What is a mammal? ...

Chapter 34 The Origin and Evolution of Vertebrates

characterized chiefly by a vertebral column. Earliest known was the conodont ... sharing a more recent common ancestor with Allosaurus than with modern birds) ...

Social Behavior Hermits must have lower fitness than social individuals Use of Space Clumped, random, or dispersed (variance/mean ratio) mobility = motility ...

Chapter 15 Life of the Mesozoic Era ...

Physiology and Functional Morphology Supplement Text with: 1) a closer look at Cardiovascular system respiratory potential dictates virtually all life history ...

Part I: Evolutionary History Chapter 1: Tetrapod Relationships & Evolutionary Systematics What is Herpetology? is it the study of the herpes virus?

... of valleys and hills. Alleles on hill more fit. NS preserves ones on the hill ... HARDY-WEINBERG THEOREM: IDEA DEVELOPED TO DETERMINE IF A POP. WAS EVOLVING. ...

Gila Monster. Coral Snake. Most lizards small (to 16 mm), though Komodo Dragon to. 3 m ... this evolutionary remodeling are evident in a succession of fossils. ...

Patterns in Evolution I. Phylogenetic II. Morphological III. Historical (later) IV. Biogeographical The only trait we did not define was an autapomorphy - this is a ...

The Origin and Early Evolution of Amniotes Amniotes diverged from anthracosaurs in the Carboniferous period (late Paleozoic) The Amniotic Egg (shelled egg ...

Title: PowerPoint Presentation Author: hh Last modified by: dibrahim Document presentation format: On-screen Show (4:3) Company: Donald Broom Other titles