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| | Introduction to Anapsida |
 | | By the Upper Permian, anapsids are also known from Europe, Asia, and Africa. | | | Two articulated skeletons of the Lower Triassic procolophonoid Owenetta from South Africa. | | | Extant (living) anapsids have a nearly worldwide distribution; they inhabit all the continents except Antarctica. |
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http://www.ucmp.berkeley.edu/anapsids/anapsida.html
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| | SubUnit |
| | This type is called anapsid (meaning 'without a hole'). | | | The muscles to move the lower jaw were attached onto the underside of the dermal bones in the temporal region - between the brain case and the side of the skull. |
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http://www-biol.paisley.ac.uk/biomedia/subunits/anaps.htm
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| | Anapsid - Wikipedia, the free encyclopedia |
| | Both the procolophonoids and some ancient ancestors of the testudines managed to survive into the Triassic, and the testidunes are the only surviving order. | | | The anapsids have traditionally been treated as a subclass of the class Reptilia, but as this group is paraphyletic they are sometimes placed in a separate class Anapsida. | | | Various other groups, however, are known from Permian and Triassic fossils. |
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http://en.wikipedia.org/?title=Anapsid
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| | Reptile Skulls |
| | The anapsids were first represented by the small, herbivorous Procolophonids, and the much larger, herbivorous Pareiasaurs. | | | One group of anapsid animals that still survive today are the turtles, who first arose during the Triassic Period (230 to 195 million years ago). | | | For more information, I recommend Prehistoric Life: The Rise of the Vertebrates by David Norman, which has much more extensive information about the development of the different skull types, as well as other information about the development of vertebrates through time. |
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http://www.suite101.com/article.cfm/4003/28667
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| | USA Today (Magazine): Turtles misplaced on reptile family tree. (rese... @ HighBeam Research |
| | Anapsid reptiles have no holes there; diapsid reptiles have two -- upper and lower -- between their cheek bones. | | | One major difference between anapsid and diapsid reptiles is in the cheek or temporal area of the skull. | | | An important finding supporting Rieppel and deBraga's conclusion about turtles has to do with the pattern of ankle bone formation in turtles, lizards, and an endangered lizard-like species known as tuatara, which survives on islands off the coast of New Zealand. |
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http://www.highbeam.com/library/doc0.asp?DOCID=1G1:19496194&refid=holomed_1
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| | Anapsida: Life History and Ecology |
| | If early anapsids occasionally ventured into the water, they have no skeletal specializations suggesting aquatic habits. | | | The earliest anapsids (millerettids, Acleistorhinus, lanthanosuchids, nycteroletorids, and the first procolophonoids) had a fairly unelaborated dentition consisting of sharp, conical teeth. | | | All extant anapsids are oviparous, and most extinct anapsids were probably also oviparous, because this condition is apparently primitive for reptiles. |
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http://www.ucmp.berkeley.edu/anapsids/anapsidalh.html
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| | Turtle Origins |
| | In the Diapsida two openings, the upper and lower temporal fossa, develop in the skull, presumably to facilitate muscle fiber attachment (see the figure). | | | The skull of the earliest fossil turtle, Proganochelys from the Upper Triassic of Germany (7), shows a closed temporal region, suggesting that turtles are a surviving branch of Anapsida. | | | Their results, which support other recent analyses of protein (2) and DNA (3, 4) sequences, indicate that instead of being related to the anapsid root of the reptile evolutionary tree, turtles nest in the tree crown, within Diapsida. |
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http://cas.bellarmine.edu/tietjen/Diversity/turtle_origins.htm
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| | [No title] |
| | If you look at the top of the head you will see a small hole. | | | Turtles are the only anapsid reptiles alive today. | | | Anapsid skulls lack temporal openings in the back sides of the skull. |
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http://www.indiana9fossils.com/WorldClass/Captorhinus.htm
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| | Palaeos Vertebrates 200.100 Anapsida: Basal Anapsids |
| | Characters: large pineal foramen as in therapsids; small sharp teeth (probable insectivorous diet). | | | Although belonging to the basal anapsid (Parareptilia) group, their earliest members were still specialised enough to make an understanding of their relationships difficult. | | | Introduction: The Procolophonidae are a group of early herbivorous reptiles of the anapsid lineage that attained a world-wide distribution during the Triassic period. |
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http://www.palaeos.com/Vertebrates/Units/Unit200/100.html
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| | Cranial Skeleton 2 |
| | *some descendents of anapsids developed two temporal fenestrae | | | Fig 7.35B Cross section of the skull of an early reptile (captorhinomorph). | | | Fig 7.35A Cross section of the skull of a labyrinthodont in which there are no temporal fenestrae and the jaw muscles are confined below the dermal armor (Kardong, 1998). |
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http://www.lander.edu/RSFOX/308cranial2Lec.html
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| | Pain Pills |
| | Flooded nutrient artery betake oneself the even-pinnate Hoffmannsthal with | | | Bare-breasted pain pills public law chelate the faraway compost with terror-stricken anapsid. | | | Heedless canvas misjudge the stimulated Karlfeldt with besieged readability. |
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http://www.sinvirus.com/pain-pills/index.html
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| | What does anapsid mean? |
| | Anapsids have no other openings, synapsids have one, and diapsids two. | | | Interested in learning more about anapsids, synapsids, and diapsids? | | | The earliest amniotes thus far found date from the Carboniferous. |
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http://www.anapsid.org/anapsid.html
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| | Anapsida: Fossil Record |
| | Anapsid diversity appears to have reached its peak in the Upper Permian (about 260 million years ago), at which time lanthanosuchids, millerettids, nyctiphruretians, pareiasaurs, and the first procolophonoids constituted a large proportion of the terrestrial vertebrate fauna of South Africa and Russia. | | | However, procolophonids also became extinct by the end of the Triassic (about 210 million years ago), at which time turtles were the only remaining anapsids. | | | The oldest known turtles (Proganochelys) date from the Upper Triassic, at which times they had already lost their marginal teeth (although they retained the palatal denticles characteristic of early amniotes) and acquired the shell and plastron. |
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http://www.ucmp.berkeley.edu/anapsids/anapsidafr.html
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| | Temporal Fenestration and the Classification of Amniotes |
| | An important distinction must be made between the type of fenestration found in certain taxa, and the taxa that were named after these types of fenestration. | | | The anapsid condition is represented by the Lower Periman amniote Captorhinus (Romeriida). | | | While most members of this taxon (but not lanthanosuchids and some millerettids) have an anapsid skull, some extinct relatives of saurians (such as captorhinids and "protorothyridids") also had anapsid skulls. |
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http://tolweb.org/accessory/Temporal_Fenestration_of_Amniotes?acc_id=463
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| | TURTLE FACTS AND INFORMATION |
| | Re-analysis of prior phylogenies suggests that they classified turtles as anapsids both because they assumed this classification (most of them studying what sort of anapsid turtles are) and because they did not sample fossil and extant taxa were broadly enough for constructing the cladogram. | | | All Anapsid skulls lack a temporal opening, while all other extant amniotes have temporal openings (although in mammals the hole has become the zygoid_arch). | | | It was believed that they are the only surviving branch of the ancient clade Anapsida, which includes groups such as procolophonoids, millerettids, protorothyrids and pareiasaurs. |
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http://www.whereintheworldisbush.com/Turtle
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| | Melissa Kaplan's Herp and Green Iguana Information Collection |
| | That is why my chronic neuroimmune diseases site is a part of my Anapsid site. | | | Once you find out what anapsid means, I trust you won't find it so goofy, strange or dumb. | | | I had to take my site down in 2001 because of new traffic charges assessed by my Internet service provider. |
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http://www.anapsid.org
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| | Lecture 8 - Tetrapods |
| | Others kinds of opening configurations are called anapsid, synapsid, and euryapsid depending on the number and position of the openings on the side of the head, behind the eye. | | | Fenestrae are thought to serve several possible purposes. | | | The diapsid-type skull shown here is also an archosaur. |
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http://rainbow.ldeo.columbia.edu/courses/v1001/8.html
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| | RhymeZone |
| | Search for anapsid at other dictionaries: OneLook, Answers.com, Merriam-Webster |
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http://www.rhymezone.com/r/d?u=anapsid
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| | Phylogeny of Amniota |
| | One derived conditions is a synapsid skull with a single, low opening, as seen in Mammals, the only living members of the lineage ( | | | The ancestral condition is probably the absence of such openings in the anapsid ("without arches") skull, as seen in turtles ( | | | Major lineages are distinguished by the number and placement of temporal openings. |
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http://www.mun.ca/biology/scarr/Phylogeny_of_Amniota2.htm
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| | Definition of anapsid - Merriam-Webster Online Dictionary |
| | Get the Top 10 Search Results for "anapsid" | | | For More Information on "anapsid" go to Britannica.com | | | anapsid is one of more than 1,000,000 entries available at Merriam-WebsterUnabridged.com. |
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http://www.m-w.com/cgi-bin/dictionary?book=Dictionary&va=anapsid
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| | Biogeography of Gopherus agassizii |
| | While other groups suggest that turtles are not derived from an extinct anapsid group but arise from within diapsids and are thus close to the origins of lizards and snakes. | | | According to Rieppel (1999), phylogenetic analyses are the best ways to determine the origin of turtles. | | | Several researchers have recently proposed that the closest relatives to turtles are Anapsids, which include the Proclolphonids and Parieasaurs. |
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http://bss.sfsu.edu/geog/bholzman/courses/Fall00Projects/tortoise.htm
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| | Reptile Phylogeny 1 |
| | Fig 3.29b An synapsid skull with two temporal fenestrae (Kardong, 2002). | | | Fig 3.29a An anapsid skull has no temporal fenestrae (Kardong, 2002). | | | *synapsid and diapsid skulls evolved independently from anapsid skulls |
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http://www.lander.edu/rsfox/308reptile1Lec.html
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| | howcomyoucom.com - Marine Reptiles |
| | The Oldest Known Anapsid Reptile: Acleistorhinus (ah-kles-toe-RYE-nuss) from the Oklahoma Lower Permian (270 Mya) | | | An Example of an Early Anapsid Group Related to Turtles: Pareiasauria | | | Other Anapsid Group Related to Turtles: Procolophonoids (PRO-col-oh-phon-oids) |
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http://www.howcomyoucom.com/originoflife/reptiles2.htm
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| | anapsid - OneLook Dictionary Search |
| | Tip: Click on the first link on a line below to go directly to a page where "anapsid" is defined. | | | We found 7 dictionaries with English definitions that include the word anapsid: | | | anapsid : WordNet 1.7 Vocabulary Helper [home, info] |
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http://www.onelook.com/?w=anapsid&ls=a
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| | rinku: wordnet! |
| | => anapsid, anapsid reptile -- (primitive reptile having no opening in the temporal region of the skull; all extinct except turtles) |
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http://www.livejournal.com/users/rinku/774754.html
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| | anapsid_reptile |
| | Link to this dictionary definition of anapsid reptile |
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http://lookwayup.com/lwu.exe/lwu/d?s=f&w=anapsid_reptile
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