INTEGBI 175LF Lecture Notes - Lecture 20: Eublepharidae, Saxicolous Lichen, Squamata
14 May 2018
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Lectures 21 - 23: SQUAMATE PHYLOGENY
Sphenodontidae : Tuataras
Dibamidae : Blind Lizards
●Range: 1g in SE Asia, other in Mex
●2g, 24 sp.
●Sister taxon to all other squamates
●Ecology: fossorial
●Description:
○Limbless
○No pect girdle
○M have lap-like hind limbs
○Smooth, shiny scales
○Reduced eyes overlain w/ scales
Gekkota : Geckos
○Fossils: Jurassic
○Huge - 7 families, 123g, 1.7k sp.
○Description:
■Toe pads w/ setae
■Vocalizations: terr, intersexual communication, distress calls
■Usually oviparous
■Defensive mechs: caudal autonomy, fragile skin
○Ecology:
■Mostly nocturnal
■Secondary terrestriality and loss of toe pads in some sp.
■Many ecomorphs:
●Arenicolous burrowers
●Web-footed sand-dune specialists
●Arboreal gliders
●Saxicolous crevice-dwellers
●Arboreal tree bark mimics
●Arboreal diurnal nectarivores
●Eublepharidae : Eyelid Geckos
○Range: disj N to C Am, Africa, Asia (relict)
○6g, 38 sp.
○Ecology:
■Terrestrial (derived state)
■Some arboreal, nocturnal insectivores (ancestral state)
○Description:
■Have eyelids
■No toe pads, subdigital lamellae
Document Summary
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