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Topic: Amphisbaenia


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  Natural History of Snakes
Snakes, lizards and Amphisbaenia are closely related and belong to a single order, Squamata, with three suborders.
In spite of the theory regarding the evolution of modern snakes from burrowing lizards, there is no modern lizard family that could be construed to be a link between lizards and snakes.
Even the legless amphisbaenians (suborder Amphisbaenia), which were at one time thought to be lizards “turning into snakes,” have now been classified into their own suborder.
members.tripod.com /wellsking/Nathistory.htm   (1979 words)

  
 MavicaNET - Двуходки (Amphisbaenia)   (Site not responding. Last check: 2007-11-05)
This file contains a systematic overview of Amphisbaenidae, featuring links to books, other pages on the web about Amphisbaenidae, pictures etc. Common names in different languages may be also available as well as a short dutch description to the taxon.
In contrast to other limbless lizards or snakes, which have a reduced left lung, the right lung of amphisbaenians is reduced in size.
Diрer kertenkelelerden зok farklэ bir familyadэr bu sebepten bazэ herpetologlar tarafэndan farklэ bir alttakэma dahil edilmiюlerdir (Amphisbaenia) Dэю gцrьnьюleri bakэmэndan solucana benzerler.
www.mavicanet.com /lite/rus/15933.html   (264 words)

  
 Digimorph - Anops kingii (keel-headed worm lizard)
Anops kingii is a member of Amphisbaenia, a lineage (160 species) of mostly limbless burrowing squamates.
The specimen was scanned by Richard Ketcham on 11 February 2003 obliquely along the coronal axis for a total of 663 slices, each slice 0.0192 mm thick with an interslice spacing of 0.0192 mm.
Systematics and evolution of the Amphisbaenia (Reptilia: Squamata) based on morphological evidence from fossil and living forms.
digimorph.org /specimens/Anops_kingii   (509 words)

  
 BIOONE Online Journals - SYSTEMATICS OF THE AMPHISBAENIA (LEPIDOSAURIA:SQUAMATA) BASED ON MORPHOLOGICAL EVIDENCE FROM ...
In this paper, a phylogenetic study of the Amphisbaenia is presented based on morphological characters investigated in living and fossil forms.
The basal positions of Bipes and Blanus imply that a round-headed cranial shape is the primitive condition for Amphisbaenia in contrast to some previous hypotheses.
In this analysis, amphisbaenians are nested within Squamata, in contrast to a hypothesized relationship as the sister-group to the remainder of squamates (alone, with snakes, or with another group of limbless burrowing lizards, Dibamidae).
www.bioone.org /perlserv/?request=get-abstract&issn=0733-1347&volume=017&issue=01&page=0001   (634 words)

  
 IngentaConnect Habits hidden underground: a review on the reproduction of the Am...   (Site not responding. Last check: 2007-11-05)
Although Amphisbaenia eggs have been found in ant nests, it remains disputable whether this is an obligatory or even a preferable location for egg-laying.
The general pattern of reproductive output in Amphisbaenia is characterized by a low number of eggs/embryos per clutch whose individual size is comparatively large in relation to adult body size.
Eggs are markedly elongated on the long axis and arranged in-line within the abdominal cavity possibly to prevent/diminish biomechanic drawbacks of egg bearing.
www.ingentaconnect.com /content/brill/amre/2006/00000027/00000002/art00005   (348 words)

  
 Digimorph - Anops kingii (keel-headed worm lizard)
Anops kingii is a member of Amphisbaenia, a lineage (160 species) of mostly limbless burrowing squamates.
The specimen was scanned by Richard Ketcham on 11 February 2003 obliquely along the coronal axis for a total of 663 slices, each slice 0.0192 mm thick with an interslice spacing of 0.0192 mm.
Systematics and evolution of the Amphisbaenia (Reptilia: Squamata) based on morphological evidence from fossil and living forms.
www.digimorph.org /specimens/Anops_kingii   (509 words)

  
 Amazon.com: Amphisbaenia   (Site not responding. Last check: 2007-11-05)
The characteristics and affinities of the Amphisbaenia (Transactions of the Zoological Society of London) by Carl Gans (Unknown Binding - 1978)
A revision of the African genus Zygaspis Cope (Reptilia: Amphisbaenia) (Syntarsus) by Donald G Broadley (Unknown Binding - 1997)
Studies on amphisbaenians (Amphisbaenia : Reptilia), 5: The species of Monopeltis from north of the River Zaire (Occasional papers of the Museum of Zoology, University of Michigan) by Carl Gans (Unknown Binding - 1973)
www.amazon.com /s?ie=UTF8&keywords=Amphisbaenia&index=blended&page=1   (382 words)

  
 Digimorph - Rhineura hatcherii (fossil worm lizard)
The HRXCT data (available at www.digimorph.org) corroborate and extend previous hypotheses that the mechanical organization of the head in Rhineura is organized to a large degree around its burrowing lifestyle.
Rhineura is a member of Amphisbaenia, a lineage (160 species) of mostly limbless burrowing squamates.
Gans C. The characteristics and affinities of the Amphisbaenia.
www.digimorph.org /specimens/Rhineura_hatcheri   (1139 words)

  
 [No title]   (Site not responding. Last check: 2007-11-05)
Kearney's dissertation research involves a higher-level phylogenetic analysis of the Order Amphisbaenia, a group of highly specialized, limbless, burrowing reptiles that spend their entire life in underground tunnels.
Osteological characters will be examined from fossil and Recent forms primarily to: (i) identify monophyletic taxa within Amphisbaenia; and (ii) ascertain patterns and directions of divergence in morphological characters.
Support for training of graduate students in modern technologies is critical to maintain the workforce of scientists capable of addressing questions and issues in global biology.
www.cs.utexas.edu /users/yguan/NSFAbstracts/Abstracts/BIO/DEB.BIO.a9701208.txt   (197 words)

  
 ADW: Varanus komodoensis: Information
Females give off a scent in their feces to communicate that they are ready to mate and the male replies by rubbing his chin on her and licking her body.
A normal adult Komodo dragon diet consists mainly of carrion, but it is not uncommon for them to attack and eat a variety of large prey, including goats, pigs, deer, wild boar, horses, water buffalo, and smaller Komodo dragons.
Lizards and Worm Lizards - Sauria and Amphisbaenia.
animaldiversity.ummz.umich.edu /site/accounts/information/Varanus_komodoensis.html   (1401 words)

  
 Best of the Web - What's New in Science For 2/23/2006
Systematics of the Amphisbaenia (Lepidosauria:Squamata) - Abstract of the article by Maureen Kearney.
Amphisbaenia of the World Amphisbaena - Lists species and their distribution.
Trinidad and Tobago Biodiversity Amphisbaenia - Presents a table of species found in the area.
botw.org /new/Science/02232006.cfm   (1100 words)

  
 What is an Amphisbaena?
A real animal that takes its name from the amphisbaena, the amphisbaenia, is a "worm lizard" native to South America and parts of Africa, the Middle East, and Mediterranean Europe.
The amphisbaenia is similar in color and appearance to a worm, but is actually a relative of lizards and snakes.
Like its mythical cousin, the amphisbaenia can slither equally well in either direction, and its head and tail are difficult to distinguish at a glance.
www.wisegeek.com /what-is-an-amphisbaena.htm   (380 words)

  
 Texas Natural Science Center:
Gans, C.  1964.  Redescription of Amphisbaena dubia Müller (Amphisbaenia: Reptilia).  Breviora 205:1-11.
Gans, C.  1978.  The characteristics and affinities of the Amphisbaenia.  Transactions of the Zoological Society of London 34:347-416.
Gans, C., A. Bauer, and R. Günther.  1997.  An annotated type catalogue of the amphisbaenians (Reptilia: Squamata: Amphisbaenia) in the Zoological Museum, Berlin.  Mitteilungen aus dem Zoologischen Museum in Berlin 73(1):41-50.
www.utexas.edu /tmm/vpl/gans_bib_color1.html   (13982 words)

  
 Worm Lizard,Reptiles,Amphibians,Worm Lizard Picture Gallery Collection,Worm Lizard Pictures,Encyclopedia,Worm Lizard
Most species have no limbs and move by undulating the scales of their loose-fitting skin, but a few Mexican forms (genus Bipes) do have forelimbs.
More than 100 species of worm lizards are classified in many genera making up the two families--Amphisbaenidae and Trogonophidae--in a suborder (Amphisbaenia) separate from all other lizards.
Worm lizards, or amphisbaenids, are found in the Americas, Europe, and Africa.
www.4to40.com /earth/geography/htm/reptilesindex.asp?counter=54   (226 words)

  
 THE FOSSIL RECORD AND PALEOECOLOGICAL SIGNIFICANCE OF NORTH AMERICAN AMPHISBAENIANS AND THEIR BURROWS: THE INTERACTION ...
The Amphisbaenia are an extant order of elongate, limbless, fossorial reptiles that inhabit equatorial regions.
The fossil record of the North American Amphisbaenia extends from the Paleocene to the Pleistocene, with the greatest abundance in the Eocene to Oligocene continental deposits of northern Colorado, western Nebraska, southern South Dakota and Wyoming.
The trace fossil record of these burrowing reptiles, however, is unknown.
gsa.confex.com /gsa/2003AM/finalprogram/abstract_61951.htm   (483 words)

  
 Georgia Wildlife Web Site; reptiles: squamata   (Site not responding. Last check: 2007-11-05)
The Order squamata, scaled reptiles, is the largest order of reptiles with over 6,000 living species.
It is composed of three suborders: the Amphisbaenia (amphisbaenians), the Lacertilia (lizards), and the Serpentes (snakes).
Members of this huge order are found worldwide, except in Antarctica and on a few very remote islands.
museum.nhm.uga.edu /gawildlife/reptiles/squamata/squamata.html   (161 words)

  
 Kearney Lab Publications
First report of a pectoral girdle muscle in snakes, with comments on the snake cervico-dorsal boundary.
Repeated evolution of limblessness and digging heads in worm lizards revealed by DNA from old bones.
Kearney, M. Systematics and evolution of the Amphisbaenia: a phylogenetic hypothesis based on morphological evidence from fossil and recent forms.
www.fieldmuseum.org /kearneylab/pubs.html   (236 words)

  
 A reinterpretation of the amphisbaenian orbitosphenoid
The Amphisbaenia is a successful group of some 140 species of strange, specialized burrowing reptiles with reduced eyes and limbs, found mainly in parts of Africa and America.
However, appropriate embryonic material available for the first time shows that it is a membrane bone.
This remarkable condition tends to emphasize the distinct status of the Amphisbaenia within the Squamata, as a sister-group equivalent to the lizards or the snakes
www.nature.com /cgi-taf/DynaPage.taf?file=/nature/journal/v302/n5905/abs/302243a0.html   (193 words)

  
 Trinidad and Tobago Biodiversity Clearing House - Checklist of Reptiles of Trinidad and Tobago - Retiles - Worm Lizards
Amphisbaenia is a group of legless squamates distantly related to lizards and snakes in spite of their resemblance to worms.
The skin of amphisbaenia is only loosely attached to the body.
They move in an accordion-like motion, in which the skin moves and the body seemingly just drags along behind it.
trinbagobiodiversity.gov.tt /reptiles/worm-lizards/index.htm   (195 words)

  
 Herpbreeder.dk
The small species from southern South America commonly identified as Amphisbaena darwini.
A New Species of Small Amphisbaena (Reptilia: Amphisbaenia: Amphisbaenidae) from Western Amazonian Brazil.
The association of Amphisbaena alba (Reptilia: Amphisbaenia) with the leaf-cutting ant Atta cephalotes in Trinidad.
www.herpbreeder.com /worldspecies/Amphisbaenia/amphisbaena.htm   (323 words)

  
 Amphisbaenia - Dizionario Inglese-Italiano WordReference.com
We found no English translation for 'Amphisbaenia' in our Italian to English Dictionary.
Or did you want to translate 'Amphisbaenia' from English to Italian?
Discussioni nei forum nel cui titolo è presente la parola 'Amphisbaenia':
www.wordreference.com /iten/Amphisbaenia   (60 words)

  
 Herpetology / American Museum of Natural History
1971 Redescription and Geographical variation of Monopeltis guentheri Boulenger (Amphisbaenia, Reptilia).
Relationships and distribution of Genyophryne thomsoni, a microhylid frog of New Guinea.
1976 Three new spade-snouted amphisbaenians from Angola (Amphisbaenia, Reptilia).
research.amnh.org /herpetology/publications/pubamnhall1.htm   (3092 words)

  
 ITIS Standard Report Page: Rhineuridae
Checklist of Vertebrates of the United States, the U.S. Territories, and Canada, draft (2004)
Systematics of the Amphisbaenia (Lepidosauria: Squamata) based on morphological evidence from recent and fossil forms
Additional off-site resources may be available for this taxon.
www.itis.gov /servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=564535   (148 words)

  
 Morphological and physiological specialization for digging in amphisbaenians, an ancient lineage of fossorial ...
Key words: Amphisbaenia, reptile, muscle, digging, Leposternon microcephalum
Co-authors contributed equally to the paper and are listed in
Abe, A. and Johansen, K. Gas exchange and ventilatory responses to hypoxia and hypercapnia in Amphisbaenia alba (reptilia: Amphisbaenia).
jeb.biologists.org /cgi/content/full/207/14/2433   (4260 words)

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