what features of archaeopteryx are reptilian
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Archaeopteryx Binomial Name. Archaeopteryx lithographica. Archaeopteryx is an extinct bird that evolutionists argue possesses some reptilian-like features causing it to be classified as a evolutionary transitional form, and is considered the first of the so called feathered dinosaurs.inomial Name. Archaeopteryx lithographica. Archaeopteryx is an extinct bird that evolutionists argue possesses some reptilian-like features causing it to be classified as a evolutionary transitional form, and is considered the first of the so called feathered dinosaurs.
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Gentoo Penguins Physical Characteristics of the Gentoo Penguin Gentoo penguins are a part of the pygoscelis or brush-tailed species. They are easily identified by their bright orange beaks and feet, black backs and white underparts.
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- Archosauria, the archosaur clade, is a crown group that includes the most recent common ancestor of living birds and crocodilians. The hip sockets faced sideways, but the knobs on the femurs were at right angles to the rest of the femur, which therefore pointed downwards. 2  Dinosaurs evolved from archosaurs with this hip arrangement. 3  The hip sockets faced downwards and the knobs on the femurs were in line with the femur.
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Therapsid The lower jaw, however, was reptilian in structure, being composed of seven bones instead of one as in mammals, and had a different, primitive articulation with the skull. In advanced forms, as in mammals, there was a bony palate in the roof of the mouth.
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Dilophosaurus The most distinctive characteristic of Dilophosaurus was the pair of rounded crests on its skull, probably used for display. Studies by Rob Gay (2001) show that these crests may have been larger in one sex than in the other.
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- Examples of euryapsids are: icthyosaur, plesiosaur, nothosaur, placodont. This group of reptiles is included in the informal class Euryapsida which is considered to be an unnatural, polyphyletic group, as the various members are not closely related.
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Acrocanthosaurus Here is a summary of some of the key facts about Acrocanthosaurus: 1  Acrocanthosaurus was a genus of dinosaur.  2 Acrocanthosaurus means high-spined lizard (referring to the neural spines on its vertebrae). 3  Acrocanthosaurus was a member of the Saurischia (lizard-hipped) order of dinosaurs. What this means, is that although Acrocanthosaurus was not closely related to lizards, it did have similarly shaped pelvic bones.
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Pterosaurs - The Flying Reptiles The evolution of pterosaurs roughly paralleled that of their terrestrial cousins, the dinosaurs, as the small, basal species of the late Triassic period gradually gave way to bigger, more advanced forms in the Jurassic and Cretaceous. ( 1 See a slideshow of pterosaur pictures and profiles and a complete, A to Z list of pterosaurs).)
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Dilophosaur 1 Known Information: Dilophosaurus sputatrix has a few traits not common in the Dilophosaurus genus. 2  It has a very shrill call, and a decorative ridge of skin on its neck. 3  I believe these are used to attract mates, as well as intimidate prey and would-be predators.ossier [edit | edit source]. 1  Wild: Dilophosaurus sputatrix is a strange creature. 2  Domesticated: Because of their shrill cry and their ability to attack intruders from range, Dilophosaurus seem most suited as guard dogs. 3  Known Information: Dilophosaurus sputatrix has a few traits not common in the Dilophosaurus genus.
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- Australian water dragons have long powerful limbs and claws for climbing, a long muscular laterally-compressed tail for swimming, and prominent nuchal and vertebral crests.(A nuchal crest is a central row of spikes at the base of the head.ustralian water dragons have long powerful limbs and claws for climbing, a long muscular laterally-compressed tail for swimming, and prominent nuchal and vertebral crests.
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Archaeopteryx Unlike modern birds, Archaeopteryx had small teeth, as well as a long bony tail, features which Archaeopteryx shared with other dinosaurs of the time. Because it displays a number of features common to both birds and non-avian dinosaurs, Archaeopteryx has often been considered a link between them.rchaeopteryx feathers, although less documented than its other features, were very similar in structure and design to modern-day bird feathers. Despite the presence of numerous avian features, however, Archaeopteryx had many non-avian theropod dinosaur characteristics.
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- Australopithecine Characteristics. The Australopithecus species, referred to as Australopithecines, had features that were both human-like and ape-like. Their brains were smaller and more in the range of the brains of modern apes.They tended to have longer arms that seemed well suited to climbing.ifferent aspects of its teeth point to similarities to other Australopithecines as well as to Homo species. Its pelvis and lower chest resemble those of Homo, while other traits resemble those of Australopithecus. A. sediba is therefore a good candidate for being a direct ancestor of the genus Homo.
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Platypus Facts Physical Traits. As a uniquely featured monotreme creature, the platypus is most distinctive for having a long soft, leathery snout that resembles a duck’s bill. Covered in dense fur over the majority of its long slender body, the thick hair is naturally waterproof to keep the platypus warm and dry within the water.
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Archeops Archeops is a large, ancient avian flying Pokemon. Pokémon it possesses traits of both birds and. Reptiles its head-snake like in; appearance it is, featherless, scaly and red with a green stripe running along the. Top its mouth is lined with sharp. fangsrcheops (Japanese: アーケオス Archeos) is a Rock / Flying-type Fossil Pokemon pokémon introduced In Generation. v
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150 Million Years of Bird Evolution While it's reasonable to assume that Archaeopteryx derived from small, bipedal dinosaurs (Compsognathus is often cited as a likely candidate, and then there are all those other basal avilians of the late Jurassic period), that doesn't necessarily mean that it lay at the root of the entire modern bird family.
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- Description :Describes the physical characteristics and behavior of plant-eating duck-billed dinosaur. The Anatosaurus considered Edmontosaurus, since they are too similar to the Edmontosaurus to remain a separate genus.
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Dinosaur Some of these features were modified during the evolution of later groups, but these features are considered to be synapomorphies, or shared derived features, for the Dinosauria; the first dinosaurs had these features, and passed them on to their descendants. The dinosaur hip
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- C. Pharyngeal pouches. D. Endostyle-elongated groove in the pharynx floor of protochordates that may develop as the thyroid gland in chordates. These four characteristics may be found in some of the ancestors of chordates and are commonly placed in an informal grouping called Protochordates.These serve as living representations of the missing fossils in vertebrate evolution.n contrast to protochordates (hemichordates, urochordates, and cephalochordates), vertebrates are actively-feeding, predatory organisms that move by lateral undulation of an elongate body. Hemichordates and most urochordates are also filter-feeders, moving water through their gill slits, but are sessile as adults.
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Birds -more derived dromeosaurs, like the Microraptor, used their feathers for jumping and gliding off trees. -fossils from spain and argentina, document the development of the keeled sternum and alula, loss of teeth and fusion of bones characteristic of modern birds.
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- Among the features linking theropod dinosaurs to birds are the three-toed foot, a furcula (wishbone), air-filled bones, brooding of the eggs, and (in some cases) feathers.
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Ch 9 propliopithecids: This is a somewhat diverse group of fossil primates. Although they were larger in body size, they still showed signs of arboreal quadrupedalism. They had a 2.1.2.3/2.1.2.3 dental formula and ate mainly fruit. oligopithecids: These primates share many primitive features with the Eocene strepsirhines. However, they also share some derived features with contemporary haplorhines. Only some members of this group have a 2.1.2.3/2.1.2.3 dental formula.
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Carnotaurus Carnotaurus was further characterized by small, vestigial forelimbs and long and slender hindlimbs. The skeleton is preserved with extensive skin impressions, showing a mosaic of small, non-overlapping scales measuring approximately 5 mm in diameter.arnotaurus is a derived member of the Abelisauridae, a group of large theropods that occupied the large predatorial niche in the southern Landmasses of Gondwana during the late Cretaceous.
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- CHORDATES. There are 4 basic chordate characteristics: a) Notochord. The notochord is a flexible, elastic rod that runs down the longitudinal axis of the body made of a core of cells in a tough fibrous coat.here are 4 basic chordate characteristics: a) Notochord. The notochord is a flexible, elastic rod that runs down the longitudinal axis of the body made of a core of cells in a tough fibrous coat.
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Life History of Archaeopteryx lithographica Archaeopteryx is widely considered a transitional fossil between the birds and reptiles (Bakalar, 2005). It was one of the most important discoveries in the Jurassic Solnhofen limestone deposits of southern Germany (Bakalar, 2005).ertebrae, Tail: The tail of Archaeopteryx is unlike that of modern birds, in that it is long and possesses several individual vertebrae. Those of modern birds are generally much shorter and contain fused vertebrae (Nedin 1999).
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- Some defining characteristics of Chondrichthyes are internal fertilization by the use of pelvic claspers, heterocercal tails, placoid scales, cartilage skeletons, teeth unattached to jaws, and the absence of swim bladders [4][5].olocephali are a clade of chondrichthyes that primarily differ from the other clades of chondrichthyes (Galeomorpha, Squalomorpha, and Batoidea) by having a single gill opening. They are put together with chrondrichthyes because their soft anatomy mostly compares with species found within this class than any other.