Factbites
 Where results make sense
About us   |   Why use us?   |   Reviews   |   PR   |   Contact us  

Topic: Sauropsid


  
  Sauropsid - Wikipedia, the free encyclopedia
Sauropsids are a diverse group of mostly egg-laying vertebrate animals.
Living sauropsids include lizards, snakes, turtles, crocodiles, and birds.
Watson, D.M.S. On Millerosaurus and the early history of the sauropsid reptiles.
en.wikipedia.org /wiki/Sauropsid   (591 words)

  
 The Origins of Eucynodonts
Sauropsids, but you could call them reptiles should you prefer.
However, as far as can be told, the earliest sauropsids and synapsids weren't all that different from each other.
Each side of the synapsid skull had an extra opening behind the eye holes, (a temporal fenestra), and there were a number of other details.
www.geocities.com /trevor_dykes/eucynoroots.htm   (1413 words)

  
 Home
Sauropsid Phylogeny: All organisms more closely related to crocodylians and lizards than to Synapsids.
The pattern: All amniotes that are not synapsids are sauropsids.
Sure they are incomplete and, at best, sample only the anatomy of hard parts of the body, but they are real information from earlier stages of evolution that serve to break-up long branches.
www.geol.umd.edu /~jmerck/honr219d/notes/l18.html   (1510 words)

  
 Striedter Publications
Numerous scientists have sought a homologue of mammalian isocortex in sauropsids (reptiles and birds) and a homologue of the sauropsid dorsal ventricular ridge in mammals.
Although some of the proposed theories were enormously influential, alternative theories continued to coexist primarily because the striking differences in pallial organization between adult mammals, sauropsids, and amphibians, enabled different authors to enlist different subsets of similarity data in support of different hypotheses of putative homology.
A phylogenetic analysis based on parsimony cannot discriminate between such alternative hypotheses of putative homology because sauropsids and mammals are sister groups.
darwin.bio.uci.edu /neurobio/Faculty/Striedter/gs_abstracts.htm   (2693 words)

  
 Lung Structure and Ventilation in Theropod Dinosaurs and Early Birds
Lung morphology in nonavian sauropsid amniotes (reptiles) is distinct from the alveolar lungs of mammals (Fig.
The nonavian sauropsid septate lung is analogous to a single,
Given their affinity to other sauropsids, dinosaurs probably possessed septate lungs.
cas.bellarmine.edu /tietjen/images/lung_structure_and_ventilation_i.htm   (2354 words)

  
 KORN ET AL., March 2000   (Site not responding. Last check: 2007-11-01)
Light microscopy, as well as scanning (SEM) and transmission (TEM) electron microscopy, were used to study the morphology of spermatozoa from Japanese quail.
Japanese quail had a sauropsid type of sperm cell, which is typical of nonpasserine birds.
The spermatozoa were vermiform in shape, with a maximum width of 0.6 µm and an overall length between 230 and 250 µm.
www.poultryscience.org /ps/abs/00/Mar00ab407.html   (279 words)

  
 [No title]
In the end, the small advanced cynodonts and their mammalian descendents became nocturnal, depending on hearing and smell and leaving the day to the visual-orientated archosaurs (thecodonts and dinosaurs).
Cynodont and early mammalian brains were larger than sauropsid (reptilian) brains not because they were more intelligent, but because of the enlarged olfactory and auditory bulbs.
The small cynodonts and Mesozoic mammals owned the cool night, or lived in trees, the large thecodonts and dinosaurs ruled the day and the ground.
bioweb.wku.edu /courses/Biol459/f2000/protected/mammevol.htm   (3112 words)

  
 Carboniferous - Wikipedia, the free encyclopedia
One of the greatest evolutionary innovations of the Carboniferous was the amniote egg, which allowed for the further exploitation of the land by certain tetrapods.
These included the earliest Sauropsid reptiles (Hylonomus), and the earliest known Synapsida (Archaeothyris).
These small lizard-like animals quickly gave rise to many descendants.
en.wikipedia.org /wiki/Carboniferous   (2099 words)

  
 The Evolutionary Origin of Feathers: A Problem Demanding Interdisciplinary Communication -- Maderson and Homberger 40 ...
This adipose tissue was one of many puzzling features of sauropsid
the structure and function of the integument of extant sauropsids
new research into any aspect of sauropsid skin biology is timely
icb.oxfordjournals.org /cgi/content/full/40/4/455   (2634 words)

  
 Lectures 23 - Dinosaur Metabolism I
However, Kevin Padian (University of California at Berkeley) and I had a suspicion that it was commonplace for sauropsid feet to interact with the ground in this way.
The foot has very primitive sauropsid proportions with digit IV being the longest.
Digit V points forward, as it does in modern skeletons and in fossil lizard and even archosauromorph skeletons.
www.ldeo.columbia.edu /edu/dees/courses/v1001/hot21.html   (2771 words)

  
 Dinosauria
One option might be to consider the Birds as a superorder of Archosaurs alongside the paraphyletic Superorder Dinosauria.
Birds thus constitute the culmination of Sauropsid evolution, just as mammals constitute the culmination of Theropsid evolution.
Dinosaurs seem to be the most popular form of prehistoric creature on the Web.
www.kheper.net /evolution/dinosauria/Dinosauria.htm   (1841 words)

  
 The Development of the Sauropsid Integument: A Contribution to the Problem of the Origin and Evolution of Feathers -- ...
The Development of the Sauropsid Integument: A Contribution to the Problem of the Origin and Evolution of Feathers -- Maderson and Alibardi 40 (4): 513 -- American Zoologist
Articles by Maderson, P. Articles by Alibardi, L. The Development of the Sauropsid Integument: A Contribution to the Problem of the Origin and Evolution of Feathers
Some characters, i.e., 2 and 14, have evolved independently in different clades.
icb.oxfordjournals.org /cgi/content/full/40/4/513   (5861 words)

  
 Earth Sciences II Final Review Topics
Sauropsid amniotes eventually gave rise to modern reptiles
Synapsids dwindled and only one group survived, but those gave rise to the mammals in the Late Triassic
Sauropsids thrived; the most successful Sauropsids of the Mesozoic were the dinosaurs (evolved Late Triassic)
www.columbia.edu /~vjd1/hist_final_rev.htm   (1537 words)

  
 Definition of sauropsid - Merriam-Webster Online Dictionary   (Site not responding. Last check: 2007-11-01)
Click here to search for another word in the Merriam-Webster Online Dictionary.
For More Information on "sauropsid " go to Britannica.com
Get the Top 10 Search Results for "sauropsid "
www.bonus.com /contour/merriam_webster/http@@/www.m-w.com/dictionary/sauropsid   (56 words)

  
 MESENOSAURUS   (Site not responding. Last check: 2007-11-01)
About the size of a large goanna or large iguana
This small, insectivorous reptile was an eosuchian, the group that gave rise to the archosaurs and lizards, the core members of the sauropsid assemblage, which was to replace the theropsid assemblage in the Triassic.
Mesenosaurus was found in red clays deposited in an ancient lake in what is now northern Russia.
www.gondwanastudios.com /info/mes.htm   (78 words)

  
 Research Interests   (Site not responding. Last check: 2007-11-01)
Some of the fruits of this research include:
Soft-tissue topology of the reptilian adductor chamber and the evolution sauropsid jaw muscles
Neuromuscular topological organization of the adductor chamber in left, dorsal view, as shown in schematic of Sphenodon.
oak.cats.ohiou.edu /~ch338800/research_interests.htm   (1466 words)

  
 RedOrbit NEWS | Poster Abstracts
In viviparous squamates, placental transfer of organic and inorganic nutrients is widespread, if not universal.
The capacity for uptake by the fetal membranes may well be a primitive sauropsid feature that long predates the evolution of viviparity.
THE TEMPORAL STRUCTURE OF MULTIPLE GUIDANCE CUES DURING PREY- FINDING BEHAVIOR OF THE MARINE MOLLUSC TRITONIA DIOMEDEA
www.redorbit.com /modules/news/tools.php?tool=print&id=131786   (8851 words)

Try your search on: Qwika (all wikis)

Factbites
  About us   |   Why use us?   |   Reviews   |   Press   |   Contact us  
Copyright © 2005-2007 www.factbites.com Usage implies agreement with terms.