Studies on amphisbaenians (Amphisbaenia, Reptilia).

  • 260 Pages
  • 3.44 MB
  • English
American Museum of Natural history , New York
Other titlesAmphisbaenids, Small species from southern South America commonly identified as Amphisbaean darwini
StatementCarl Gans.
SeriesBulletin of the American Museum of Natural History -- v. 134, article 3.
ContributionsAmerican Museum of Natural History.
The Physical Object
PaginationP. 187-260 :
ID Numbers
Open LibraryOL18691725M

Amphisbaenia (called amphisbaenians or worm lizards) is a group of usually legless squamates, comprising over extant baenians are characterized by their long bodies, the reduction or loss of the limbs, and rudimentary eyes.

As many species have a pink body and scales arranged in rings, they have a superficial resemblance to : Reptilia. OCLC Number: Notes: "Issued J "--Title page verso. Pts. have title: Studies on amphisbaenids (Amphisbaenia, Reptilia). "The genus Leposternon ranges across eastern South America"--Page Studies on amphisbaenians (Amphisbaenia, Reptilia).

6, The genera Monopeltis and Dalophia in southern Africa. Studies on amphisbaenians (Reptilia). 7, The small round-headed species (Cynisca) from western Africa. American Museum novitates ; no. Studies on amphisbaenians (Amphisbaenia, Reptilia).

6, The genera Monopeltis and Dalophia in southern Africa. Bulletin of the AMNH ; v.article Studies on amphisbaenians book. Download directly to your device’s book reader (e.g., iBooks) or drag into your e-books collection on your computer.

Among the most controversial and remarkable of living tetrapods are the bizarre amphisbaenians: a group of fossorial, long-bodied carnivorous animals with reduced or absent limbs, spade-shaped or.

Although often considered generalist and opportunistic feeders, the few studies on this topic indicate that they may be more discriminating and capable of selecting particular prey items (Martin et al., ). Amphisbaenians have strong, heavy jaws and a single fused premaxilla.

Other articles where Amphisbaenian is discussed: sound reception: Amphisbaenians: The amphisbaenians form a little-known group of reptiles.

Because they are burrowers and live almost entirely underground, they are seldom seen. The one species in the United States, Rhineura floridana, Studies on amphisbaenians book found in some parts of Florida; a number of species occur in other.

amphisbaenians,reptiles,squamates,herpetology. All extant amphisbaenians – the weird, burrowing squamates often vernacularly termed worm-lizards – are predators that prey on arthropods, worms.

Geographic range. Amphisbaenids occur in South America, some Caribbean islands, and sub-Saharan Africa. Taxonomy. One deep-branching and somewhat aberrant genus, Blanus, is native to Europe, and may represent a distinct family.

More recent sources indeed place it in the family Blanidae. Description. Members of the family Amphisbaenidae are limbless, burrowing lizards Class: Reptilia. The characteristics and affinities of the Amphisbaenia The amphisbaenians, to judge from the many changes of opinion regarding their appropriate position among the vertebrates, appear to have puzzled most students of herpetology.

Re- evaluation suggests that a case may now be made for classifying the amphisbaenians as an. Mozambique Diary: Amphisbaenians Posted by Piotr Naskrecki on J J Most people would hardly look twice at this small, pink “worm”, but this amphisbaenian (Chirindia swynnertoni) from Gorongosa probably looks like the now extinct ancestor of all snakes.

Both studies confirmed the basal position of Rhineuridae, also obtained in higher-level squamate studies. This implies three independent events of limb loss among amphisbaenians, and further supports the widespread occurrence of reductions and losses of limbs among by:   1.

Introduction. Amphisbaenians, or worm lizards, are a bizarre group of squamates specialized for life as subterranean predators [].Adaptations for underground locomotion include a robust skull to plough through the Earth []; an elongate body and reduced limbs to move through tunnels [2,3] and scales arranged in rings, allowing amphisbaenians to Cited by: Squamate reptiles (snakes, lizards, and amphisbaenians) serve as model systems for evolutionary studies of a variety of morphological and behavioral traits, and phylogeny is crucial to many generalizations derived from such studies.

Specifically, the traditional dichotomy between Iguania (anoles, iguanas, chameleons, etc.) and Scleroglossa (skinks, geckos, snakes, etc.). Amphisbaenia (called amphisbaenians or worm lizards) are a group of usually legless squamates, comprising of over species. Amphisbaenians are characterized by their long bodies, the reduction or loss of the limbs, and primitive eyes.

Description Studies on amphisbaenians (Amphisbaenia, Reptilia). FB2

Many species have a pink body and scales arranged in rings, they have a resemblance to the genus Bipes retains Class: Sauropsida. The Natural History of Nematodes by George O. Poinar (Author) › Visit Amazon's George O. Poinar Page. Find all the books, read about the author, and more.

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Poinar (Author) ISBN ISBN Cited by:   African Studies American Studies Ancient Near East and Egypt Art History Asian Studies Book History and Cartography Biblical Studies Classical Studies Education History Jewish Studies Literature and Cultural Studies Languages and Linguistics Media Studies Middle East and Islamic Studies Philosophy Cited by: This analysis groups limbless squamates, such as amphisbaenians, dibamids, snakes and Anniella, in a single clade, as also found by Gauthier et al.

( Gilmore, ;Gans & Author: Maureen Kearney. Amphisbaenia synonyms, Amphisbaenia pronunciation, Amphisbaenia translation, English dictionary definition of Amphisbaenia. Noun 1. Amphisbaenia - type genus of the Amphisbaenidae genus Amphisbaena, genus Amphisbaenia, Amphisbaena reptile genus.

The chromosome constitutions of 15 forms (2 acrodonts and 13 pleurodonts) of amphisbaenians belonging to two families and eight genera were studied. The diploid chromosome numbers varied from 30 to 44 with the number of chromosome arms (FN) ranging from 42 to Cited by: In the top box type the book of the Bible and the chapter (e.g.

Tit 2). Also, select the version and then click the "Search the Bible" button. For the NT only the CEV, ESV, NASB & NIV versions have voice available. After listening to and/or reading the scripture please answer the related review questions below.

Titus. Studies in the coinages of Carausius and Allectus [C.E.; Blackburn, M.A.S. Challis] on *FREE* shipping on qualifying offers. Gans, C. Studies on amphisbaenians (Amphisbaenia, Reptilia) 4. A review of the amphisbaenid genus Leposternon.

Bulletin of the American Museum of Natural History (6) Gans, C. [Review of] Symposium: Snake Venoms and Envenomation. Clinical Toxicology (Shermon Minton, ed.). Copeia (3) Sex-determining mechanisms in reptiles can be divided into two convenient classifications: genotypic (GSD) and environmental (ESD).

While a number of types of GSD have been identified in a wide variety of reptilian taxa, the expression of ESD in the form of temperature-dependent sex determination (TSD) in three of the five major reptilian lineages has drawn considerable Cited by: Catalogue of the tortoises, crocodiles, and amphisbaenians, in the collection of the British Museum.

British Museum (Natural History). Department of Zoology. Type. Book Material. Published material. Publication info. LondonPrinted by order of the Trustees Subjects. Identifying Reptiles and Amphibians ☐ Attend a local reptile show and identify as many reptiles and amphibians as you can.

Journal your conversations with breeders and herpetologists about the animals they keep and why. ☐ Talk with a knowledgeable person (breeder, herpetologist, zookeeper, etc.) and list key points in your journal. An amphibian is a class of animals that live their lives both in and out of water.

There are three orders within this class, the most common of which includes frogs and toads. gences (nodes 1– 2) in the RA G-1 studies wer e estimated to be –1 78 Ma, co ns i de r ab l y la te r th a n t he ni n e (nu cl e a r) gene estim ate of – Ma a nd the mid.

Author's personal copy N. Vidal, S.B. Hedges / C. Biologies () continent Pangaea starting million years ago (Myr), separating species on the northern landmass (Laura-sia) from those on the southern landmass (Gondwana) and the subsequent split of South America from Africa Myr[39,41,43,44].

by:. Biogenic structures of extant burrowing amphisbaenians: the paleoenvironmental and paleoecological significance of the interaction of fossorial reptiles with the substrate.

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North American Paleontology Convention, Program and Abstracts, Paleob p. Hembree, D.I., The use of modern continental burrows as trace fossil analogs for.Introduction. Amphisbaenians (worm lizards) constitute a poorly understood clade of burrowing and usually completely limbless squamates.Both molecular – and paleontological data currently indicate that amphisbaenians are the sister-taxon of lacertids, so that the former's limbless condition evolved independently from snakes.

Amphisbaenians and lacertids probably Cited by: 8.amphibians start out as larvae in water and end up on land. Amphibians consist of three orders: salamanders and newts (order Caudata); frogs and toads (order Anura); and caecilians (order Gymnophiona).

Herpetology is the branch of zoology that studies both amphibians and reptiles. All reptiles and amphibians are ectothermic, whichFile Size: 1MB.