Dramatic evolutionary transitions in morphology are often assumed to be adaptive in a new
habitat. However, these assumptions are rarely tested because such tests require …

Recumbirostran 'microsaurs,'a group of early tetrapods from the Late Carboniferous and
Early Permian, are the earliest known example of adaptation to head-first burrowing in the …

Background Morphological descriptions comparing Leposternon microcephalum and L.
scutigerum have been made previously. However, these taxa lack a formal quantitative …

Most studies on excavation behaviour of A mphisbaenia have been based on descriptive
analysis through visual observation or external body motion records. Herein, we recorded …

Amphisabenia is a group of squamates adapted for a fossorial lifestyle. The skull is the
animal's the main digging tool, and can present one of four principal shapes. The shovel …

Capturing data on the life of fossorial vertebrates is difficult since access to the subterranean
environment is made unfeasible by its density and opacity. Collecting specimens is only …

Leposternon microcephalum is a species belonging to the Amphisbaenia, a group of
burrowing reptiles. Amphisbaenia present various morphological and physiological …

There are few studies related to the biological and ecological aspects of the glass snake, a
limbless lizard and with a wide geographic distribution. The aim of this study was to analyze …

The atlas and axis are the first two vertebrae from the cervical series; these two vertebrae
are responsible for neck flexion, extension, and rotation movements, while providing …

Amphisbaenians are fossorial reptiles that have a cylindrical and elongated body covered
with scales arranged in rings, and are all apodal, except for the three species of the genus …