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Topic: Sauropod


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In the News (Wed 30 Dec 09)

  
  Sauropoda
Sauropods are a subgroup of the saurischian, or "lizard-hipped," dinosaurs.
Early relatives of the sauropods, the Late Triassic plateosaurs or prosauropods, may have occasionally stood on their hind legs.
In addition to their wide geographic distribution, sauropods are one of the most long-lived groups of dinosaurs, spanning some 100 or so million years, from the Lower Jurassic to the Upper Cretaceous.
www.ucmp.berkeley.edu /diapsids/saurischia/sauropoda.html   (235 words)

  
 Sauropods - Paleontology and Geology Glossary
The sauropods ranged in size from the early Anchisaurids that were 7-10 feet (2-3 m) long to the later giants (like diplodocids, titanosaurids, and brachiosaurids) that were over 100 feet (30 m) long.
Sauropods appeared in the late Triassic period and were common, widespread, and diverse by the Jurassic period.
Sauropods were Saurischians (the order of lizard-hipped dinosaurs that were probably the ancestors of birds).
www.enchantedlearning.com /subjects/dinosaurs/glossary/Sauropod.shtml   (870 words)

  
  Sauropods: Ancient giants unearthed in South Africa
Sauropods were ecologically significant and dominated the large terrestrial herbivore niches in most parts of the world from 170 million years ago (Middle Jurassic) to the end of the dinosaur age - 65 million years ago (Late Cretaceous).
Sauropods were very much transformed from this common ancestor.
Other features of the sauropod skull that are unique include their greatly enlarged nostrils, which are retracted away from the snout tip so that they occupy a place high on the skull roof.
www.scienceinafrica.co.za /2004/march/sauropods.htm   (1084 words)

  
 sauropoda
More commonly known to the public under the informal name "brontosaurs," sauropods are probably one of the top three general types of classic dinosaurs most likely to enter the average person's mind when they hear the word dinosaur (the other two being tyrannosaurids and "raptors", with ceratopids and stegosaurids rounding out the top five).
This basal sauropod is known from the remains of an adult and juvenile; the adult remains include partial skull and (rather oddly bent, unless the photograph is of the piece unrestored) lower jaw, and a variety of postcranial material.
This sauropod is based on a lower jaw that deepens toward the front, as in derived sauropods, yet retains "prosauropod" (whatever prosauropod is now)-like teeth, with features like serrations.
www.users.qwest.net /~jstweet1/sauropoda.htm   (3077 words)

  
 Neue Seite 3
Sauropods were the largest animals to ever inhabit the land, culminating in truly gigantic forms in at least three lineages (Upchurch 1998, Wilson 2002).
The sauropod body plan is unique among terrestrial tetrapods: A body similar to proboscideans (elephants) among mammals is combined with a very small head on a very long neck and a long tail similar to that seen in other dinosaurs (Figure 1).
This is true despite the fact that sauropods cannot be studied as living animals today, and many of the results obtained by paleobiological research of the kind conducted here have a much greater margin of error than results for living animals.
www.sauropod-dinosaurs.uni-bonn.de /sauropodlong.htm   (3077 words)

  
 Sauropod - EvoWiki   (Site not responding. Last check: )
They are known for their huge bulky bodies, long necks, long tails, small heads, elephant-like legs with one claw on each first digit toe of their front feet and 2 to 3 claws on each of their first digit toes on their hind feet, and (perhaps most famously) for their immense size.
Sauropods belong to a larger family of dinosaurs called Sauropodomorphs, which includes their possible ancestors the Prosauropods, dinosaurs that lived during the Mid to Late Triassic Period around 200 million years ago that are known also for their long necks as well as their bulky bodies.
Sauropods are known to have lived in herds for protection against meat-eaters like Allosaurus and Ceratosaurus, keeping their young at the center for protection.
wiki.cotch.net /index.php?title=Sauropod&redirect=no   (474 words)

  
 BBC NEWS | Science/Nature | Britain's biggest dinosaur found
One fossil - a single neck bone from the 125-130-million-year-old sauropod dinosaur - measures an astonishing three-quarters of a metre in length.
The long-necked sauropods were the biggest and heaviest group of dinosaurs in existence.
Scientists say the sauropod's skeleton had been eroding out of nearby cliffs and there may be more remains still to be found.
news.bbc.co.uk /1/hi/sci/tech/4031789.stm   (654 words)

  
 Sauropods, Elephants, Weightlifters: Structural Issues
Further note that the sauropod limbs don't need to be as heavily muscled as Kazmaier's, because the sauropod has four limbs and Kazmaier is employing only two.
All a sauropod would have to do is have a slightly different arrangement of the tendon route over the knee to reap enough leverage to stand in 1g.
Less is preserved in detail on sauropod joints in the references I've seen, but it is very plausible that sauropod joints could avoid the mechanical disadvantage, and be at a significant advantage when compared to human joints.
www.talkorigins.org /faqs/sauropods/sauropods-structural.html   (1829 words)

  
 Sauropods, Elephants, Weightlifters: Miscellaneous Issues
Again, in all cases, we are comparing the absolute max effort for a human weight lifter to lift and hold something for two seconds versus the sauropod's requirement to move around and walk all day long with scaled weight greater than these weights involved in the maximum, one-shot, two-second effort.
Scientists who study sauropod dinosaurs are now claiming that they held their heads low, because they could not have gotten blood to their brains had they held them high.
So, Ted's assertion that "scientists are now claiming" that all sauropods must have held their necks low is not very accurate.
www.talkorigins.org /faqs/sauropods/sauropods-misc.html   (1708 words)

  
 The UnMuseum - What Happened to the Brontosaurus
So weak, in fact, that large sauropods were thought to be slow, unable to lift their bulky tails off the ground and only able to support their massive weight by living in shallow lakes and swamps where water floated their bulk.
The sauropod's small head was not a limit on how much it could eat because the animals didn't chew their food in their mouth.
Researchers have recovered stones from sauropod excavations that the animals swallowed and that lay in the gizzard to aid in the the grinding process.
www.unmuseum.org /dinobront.htm   (1449 words)

  
 Giant European dinosaur found in Spain
Fossils of a giant Sauropod, found in Spain, reveal that Europe was home to giant dinosaurs in the Late Jurassic period -- about 150 million years ago.
This finding allows the authors to group several sauropod remains from Portugal, France, United Kingdom and other Spanish areas in a new clade, or branch, of dinosaurs that has more primitive limb and bone structures than other giant sauropods that have been found on other continents in Upper Jurassic to Lower Cretaceous rocks.
The giant sauropod fossils were found in an area that has also yielded isolated elements of other sauropods, theropod teeth, remains of stegosaurs, as well as fish and turtles.
www.eurekalert.org /features/kids/2006-12/aaft-ged121506.php   (371 words)

  
 Sauropod Dinosaurs
It was long believed that the sauropods developed from early herbivorous dinosaurs which appeared during the middle Triassic Period (230 to 195 million years ago), known as the InfraOrder Prosauropoda ("before the sauropods"), many of whom were bipedal or walking on two legs.
The second interesting development seen in the sauropod skeleton is an alteration to the pelvic girdle or hips of the sauropods.
In the sauropod pelvis, the ilium (the top bone in the diagram) and the first four vertebrae (five in later sauropods) were firmly fused together.
www.suite101.com /article.cfm/4003/60114   (500 words)

  
 Giant Sauropod dinosaur found in Spain
Fossils of a giant Sauropod, found in Teruel Spain, reveal that Europe was home to giant dinosaurs in the Late Jurassic period -- about 150 million years ago.
The new sauropod, Turiasaurus riodevensis, is named for the Teruel area (Turia) and the village where it was found.
The giant sauropod fossils were found in terrestrial deposits in a 280 square meter section of the Villar del Arzobispo Formation (Upper Jurassic-Lower Cretaceous) that has also yielded isolated elements of other sauropods, theropod teeth, postcranial remains of stegosaurs, as well as fish and turtles.
www.eurekalert.org /pub_releases/2006-12/aaft-gsd122006.php   (485 words)

  
 Sauropod Diets
Sauropod communities in the Upper Jurassic of North America include four or five sauropods that co-existed, all feeding on the various plants of the time.
However, microscopic examination of the wear patterns on the teeth of these two sauropods does indicate that sauropods did feed somewhat selectively, contrary to previous thinking.
Fiorillo, A. Dental microwear on the teeth of Camarasaurus and Diplodocus: implications for sauropod paleoecology.
www.ucmp.berkeley.edu /diapsids/saurischia/sauropoddiet.html   (581 words)

  
 Sauropod Skin and Eggs
Thousands of sauropod eggs have been found in Argentina, in a rock unit called a mudstone which appears to have been deposited on a floodplain roughly 70 million years ago during the late Cretaceous Period.
Some of the eggs contain sauropod embryos, with preservation of both the embryonic bones and skin impressions.
These sauropods are probably Titanosaurs (a subgroup of sauropods) based on the descriptions of the tiny embryonic teeth (less than 1/10th inch long) which are thin and pencil-like, as opposed to the more common spatulate teeth of other sauropod groups.
faculty.plattsburgh.edu /thomas.wolosz/sauropod.htm   (305 words)

  
 Discovery of a short-necked sauropod dinosaur from the Late Jurassic period of Patagonia : Nature
Discovery of a short-necked sauropod dinosaur from the Late Jurassic period of Patagonia
Sauropod dinosaurs are one of the most conspicuous groups of Mesozoic terrestrial vertebrates.
They show general trends towards an overall increase in size and elongation of the neck, by means of considerable elongation of the length of individual vertebrae and a cervical vertebra count that, in some cases, increases to 19 (ref. 1).
www.nature.com /doifinder/10.1038/nature03623   (281 words)

  
 Sauropod Dinosaur Egg
The protrusion on the left side of the egg is a clump of sandstone from the desert floor containing imprints left from adjacent eggs in the nest.
Sauropods were enormous herbivores which probably browsed through forests and moved to new feeding grounds in herds, the adult protecting the young.
Its sheer mass must have deterred most predators, but it could also lash out with its long tail and slash with the large curved claw on each elephantine foot.
kimsey.stonepics.com /sauropod.htm   (128 words)

  
 Definition of sauropod - Merriam-Webster Online Dictionary
Learn more about "sauropod" and related topics at Britannica.com
Find more about "sauropod" instantly with Live Search
See a map of "sauropod" in the Visual Thesaurus
www.m-w.com /cgi-bin/dictionary?va=sauropod   (76 words)

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