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26 Cards in this Set

  • Front
  • Back
Order: Squamata
Most successful reptile group
~90% of living reptiles
Origions in the early cretaceous ~130 MYA
Sub order:
Australian Lizards
Agamidae (dragon Lizards)~50spp
Gekkonidae (geckos)~90spp
Pygopodidae (legless lizards)~35 spp
Scincidae (skinks)~270 spp
Varanidae (goannas)~30spp
Invasions from Asia via Indonesian archipelago into papua new guinea
Family Agamidae
*Origin- N hemisphere
came to australia via intonesian archipelago 20-30mya
*all spp ENDEMIC
*arid and semi-arid habitats
*dinural heliotherms, terrestrial, few arboreal
*10-1500 g
*Oviparous (2-20 eggs)
*temp dependent sex determination
*most insectivorous
larger spp- larger prey
sit and wait predators
3 Lineages
genus Hypsilurus
genus Physignathus
amphibolurous group
diurnal heliotherm
*body temperature fluctuates with air temperature.
* @night temp goes down, gets a lot of sun in the morning to get it to an active level
Thorny Devil
Family Agamidae
Moloch horridus
*central deserts
*eats ants
*gathers water in skin
*10cm long
Frilled Neck Lizard
Family Agamidae
semi aboreal
n australia
Mallee dragon
Family Agamidae
small ~5cm
live one year
S/central australia
Bearded Dragon
Family Agamidae
*head bobbing, body rocking, run, hiss and get bigger or freeze
display behavior
*COOLING/HEATING hydteris was first discribed in this lizard
Allows faster heating, slower cooling--> longer activity times
heart rate faster in the day and slows at night
Eastern Water Dragon
Family Agamidae
Common near water in Brisbane
~50 cm long
escapes into water when scared
eats insects and other small animals
Family Gekkonidae
*Ancient- origin Gondwana/Eurasia
* ~90 spp in 18 genera
*3 subfamilies in world
In AUStralia- Gekkoninae and Diplodactylinae (in only OZ)
Nocturnal. DROP and regenerate tail
*Terrestrial and aboreal
*setae on toe pads
can hang upsidown, toes peel from an edge off the surface
*2 eggs in a clutch
nest (lay eggs) communally
*sexually producing and parthenogenic
clones, polar body rejoins, dont need males
Southern Leaf-tailed gecko
Saltuarius swaini
~13 cm long
lives on tree trunk in rainforest (partic strangler figs)
has huge nubby tail
Knob-tailed gecko
Nephrurus asper
~8cm long
large body small stubby tail
*doesnt drop tail
Robust Velvet Gecko
Oedura robusta
can be found in homes near forest
doesnt bark
doesnt forage around light
in S QLD and N NSW
Asian House Gecko
Found in and around human dwellings
Feeds on flying insects
Family Pygopodidae
Legless Lizards
*Restricted to OZ and New Guinea
in arid/semi arid areas NOT in tasmania
~35 spp in 8 genera
*no legs or limbs-scaly flap
*live in soil and leaf litter
*feed on invertebrates, some prey on small lizards
*DROP tail and regenerate
*Oviparous ~2 in clutch
some communal laying
Delma nasuta
in central and western australia
arid regions
invertebrate predator
Burton's Snake-Lizard
specialist skink predator
widespread distribution in OZ
Family Scincidae
*Anicient, Gondwana Origion for Australian Skinks
*Widespread in the world
*most diverse group of lizards
~270 spp in 20 genera
**boney secondary palate and composite osteoderms under each scale
deposits of cone secreted out of skin
*Variation in body form
short and stubby
long and thin
limb length variable
long in climbers, short in terrestrial forms
*variation in habitat
*most are insectavors
many are onmivor
*dinural and heliothermic
*oviparous and some nest communally
*some are viviparous (cold habitat)
some have placenta to transfer nutrients
Largest skinks
all viviparous
some ovoviviparous
many are omniverous
insects snails small fruit and flowers
*Blue-Tongue lizard
large wide-spread omniverous
*Shingle back or Sleepy Lizard
(saw at australia zoo)
slow moving
males court females by following them in early spring
*Land Mullet
Rainforests, territorial w/ retreat site, onmiverous
Sphenomorphous Group
*(ie) Eastern Water Skink
Inhabits stream banks
*common along water ways in brisbane areas
*insectivorous and eats smaller skinks
Eugongylus group
small skinks
*garden or grass skink
eats andts and lays 1-5 eggs, communal
in suburban gardens
Family Varanidae
small group of lizards
~30 spp in 1 genus
in africa and asia and australia...
**originated in australia
*medium to large sized lizards with forked tongues
*terrestrial and arboreal, some aquatic
*oviparous lay eggs in termite nests
Lace Monitor
Common Goanna
Terrestrial and arboreal
active prey searching
insects, birds and eggs, lizards, small mammals
lay in termite nests
second biggest lizard ~200 cm
Short Tailed Pigmy Monitor
worlds smallest varanid lizard
eats arthropods, and small lixards
desert sand dune areas