Exam 1 Flashcards
Ectothermic
Utilizes external sources to maintain internal body temperatures within a certain range
Tetrapod
Four foot
Extant reptile orders
Testudine (turtles)
Crocodylia
Squamata
Rhinocephalia (tuatara)
Extant amphibian orders
Gymnophiona (Apoda)
Caudata
Anura
Aristotle first proposed system of classification
Scala Naturae
Binomial nomenclature
Generic name and specific epithet
Descriptive
Honorifics
Localities
Anthropomorphic
Manlike
Modern hierarchy
Don King Plays Chess On Fat Guys Stomachs
Domain- Eukarya Kingdom- Animalia Phylum- Chordata Class- reptile/amphibian Order Family Genus Species
Claude
A clade is a group of organisms that consist of a common ancestor and its lineal descendants and represents a single branch on the tree of life
ICZN
The international commission on zoological nomenclature
Lissamphibians
Extant amphibians and their descendants of the first terrestrial vertebrates their ancestors were lobe finned fish first appeared about 400 MYA
Earliest tetrapod fossils
Elginerpeton
Ichthyostega (1st true verb. Tetrapod)
Carboniferous period
The ancestors of modern reptiles (and subsequently birds and mammals close parentheses first appear. They were not only able to reproduce on land, in the absence of water but also had an effective skin barrier.
Anthracosaur
The first tetrapod linked to the rise of the reptiles
Ichthyostega
First tetrapod tied to the amphibian clade
The three orders of amphibians
Gymnophiona (Caecilians)
Caudata (salamanders)
Anura (frogs)
Gymnophiona (caecilians)
characteristics
Strongly annulated Ossified heads Reflects a fossorial lifestyle Some are weekly annulated and aquatic Spectacular evolutionary radiations
Caudata (Salamanders)
Ecologically diverse arboreal species living in epiphytes (water collection plants) in the canopy
Anura (frogs)
Pine limbs typically are nearly twice the length of the body
Bipedal saltatory locomotion (jumps or hops on two legs)
Anurans are the most species rich and widely distributed group.
Morphologically physiologically and ecologically diverse.
Archosauria
Crocodilians and aves
Testudine (turtles tortoises)
Considered the outgroup to all other reptiles because their skulls have no fenestra (true muscle attachment)
But DNA suggest that the test today in school derived from a diapsid skull (has fenestra)