Assessor(s): Hollingsworth, B. & Frost, D.R.. Reviewer(s): Cox, N., Chanson, J.S. & Stuart, S.N. (Global Reptile Assessment Coordinating Team). Justification. Digital Morphology account of the Baja worm lizard, Bipes biporus, featuring CT- generated animations of the skull. The worm lizard Bipes biporus is an amphisbaenian, a type of elongate burrowing reptile that is often pink and wormlike in appearance. Bipes is the only .

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Jessie Maisano Publication Date: This page serves supplemental imagery for a paper entitled Assembling the Squamate Tree of Life: Perspectives from the Phenotype and the Fossil Record by J. The abstract is as follows:. bipprus

IUCN Red List of Threatened Species

These data enabled us to infer a tree much like those derived from previous morphological analyses, but with better support for some key clades. There are also several novel elements, some of which pose striking departures from traditional ideas about lizard evolution e.


Carnivorous lizards especially snakes, mosasaurs and varanoids have proven a close second. Genetic data, presumably less burdened by the potential for adaptive convergence related to fossoriality, were expected to bipws these conflicts.

Although recent gene phylogenies seem to do so, they also differ radically from any phylogeny based on the phenotype, especially for the most ancient crown squamate divergences that occurred during the latter half of the Mesozoic.

Our study relied on traditionally prepared specimens as well as high-resolution computed tomography scans that afforded unprecedented access to the cranial anatomy of Squamata.

Mexican mole lizard

This, along with the inclusion of stem fossils, provided an unparalleled sample of the phenotype enabling us to more fully explore the extreme incongruences between molecular and morphological topologies for the squamate tree of life.

Despite this extensive new database, we were unable to find morphological support for the major rearrangement of bbipes deep divergences in Squamata proposed by recent molecular studies.

Papenfuss on 30 December Jens Vindum of the California Academy of Sciences. The specimen was scanned by Matthew Colbert on 12 Bipds along the coronal axis for a total of x pixel slices.


Each x pixel slice is 0. Bipedidae page from the Reptile Database.

Mexican mole lizard – Wikipedia

Three-dimensional volumetric renderings of the skull with the extracolumella, hyoid and jaw removed, and of the isolated left mandible. All are 2mb or less.

The abstract is as follows: Links pictures of Bipes biporus on CaliforniaHerps. Skull yaw movie Skull pitch biporsu Skull roll movie Mandible yaw movie Mandible pitch movie Mandible roll movie.

About this Specimen The specimen was scanned by Matthew Colbert on 12 July along the coronal axis for a total of x pixel slices. To cite this page: Accessed December 31, at http: Funding by NSF Comments.