1) 4 digits on fore-limbs, 5 on rear; caecilians are limbless ... Limbless and elongate (snake-like) Burrow underground; found in tropical rainforests ...
Caecilian is from Latin caecus for blind (as in caecum, a blind ... Couch's Spadefoot Toad. Breeding evoked by the sound of raindrops (how do we know that? ...
... have fleshy blob tongues that apprehend food, are typically territorial and ... have specialized chemosensory tongues, apprehend food with their jaws, are ...
... infernalis (Big Bend National Park, Texas, photo:H.W.Greene) ... Longhorns (Bos taurinus, Wichita Mountains, OK; photos:H.W.Greene) What is a mammal? ...
Macroevolution Evolutionary change above a species Evolution on a grand scale Species in a new habitat Mass extinctions Early Earth ... EARLY TETRAPODS ...
... Subclass Sarcopterygii Lobe-finned fishes Overview Similarities with tetrapods Fins articulated with ... with ventral connection to gut Early ray ...
Must get access to entire article, not just abstract as ... Osteolepiform. Dipnoan. Only tetrapods. thumb 'pinky' Note major shifts in. Tetrapods. Fig 8-4 ...
Ceratodontimorpha. Tetrapoda (tetrapods) Amniota (amniotes) ... Gain of sequences specific to tetrapod or mammalian orders, or. Erroneous human gene predictions ...
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.
Amniota Amniote egg present Tetrapoda Girdles and limbs Teleostomi Vertebrates with endochondral bone Gnathostomata The jaw-bearing vertebrates Subphylum Vertebrata
Higher Chordates Amphibia, Reptilia, & Aves Subphyla Vertebrata Evolution of tetrapods One of the most significant events in vertebrate history was when the fins of ...
Logistic curve is a good fit for marine invertebrates ... benthos. Reefs. Terrestrial. tetrapods ?Two extinctions. 30% families extinct. 65% species extinct ...
... bony skeleton Class Amphibia Class Reptilia Class Aves Class Mammalia ANAMNIOTA AMNIOTA Fishes Tetrapods Chordata - have a notochord Urochordata ...
Autapomorphies are characters that are restricted to ... Anura. Urodela. Mammalia. Squamata. Therosauria. Aves. Tetrapoda. Amniota. Reptilia (paraphyletic) ...
... 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. ...
Chordates and craniates; Vertebrates; Gnathostomes; Tetrapods, Amniotes, Mammals. ... Mammals ... Mammals. Figure 34.10 A lamprey - an example of a basal vertebrate. ...
DIPNOI (lungfishes) Known from later part of Early Devonian to present. ... Lungfish pectoral girdle has complete compliment of paired dermal elements: ...
Special Somatic Receptors Membranous Labyrinth Vertebrates have pair of fluid filled membranous labyrinths Filled with ... Assists in transport of sound Figure ...
The Axial Skeleton Even craniates may have an exoskeleton and an endoskeleton Which type is derived from dermis and epidermis? Some bones have left their original ...
The Skull and Visceral Skeleton Neurocranial ossification ... and nasal cartilages The Skull and Visceral Skeleton Neurocranial ossification centers: *Otic bones ...
... and lacks scales Metamorphose from juvenile water breathing to adult air breathing Ecological indicators Class: Amphibia Order Anura (Salientia): ...
Amphibians Class Amphibia Caecilians Are predators Search for earthworms and grubs Have no arms or legs for burrowing, so have to move like an earthworm.
... are relatively unspecialized. Order anura The order anura or salientia includes about 3,500 species of frogs and toads. Anuaran live in most moist environment, ...
Title: A View of Life Author: Valued Gateway Client Last modified by: kjones Created Date: 12/9/2002 2:36:15 AM Document presentation format: On-screen Show
Digestive System and Derivatives. Derivatives include respiratory system, ... Folivorous(eats leaves) bird with foregut fermentation similar to ruminant digestion.
Vertebrates Evolution and Diversity * * * Chordates Notochord: longitudinal, flexible rod located between the digestive and the nerve cord Dorsal, hollow nerve cord ...