large taxon contents Flashcards
deuterostome phylogenetic tree includes
Echinodermata, Hemichordata, Chordata
chordata phylogenetic tree includes
Cephalochordata, Urochordata, Vertebrata
vertebrate phylogenetic tree includes (smaller taxa/very subdivided)
myxinoidea, petromyzontida, elasmobranchii, holocephali, actinopterygii, amphibia, testudinata, lepidosauria, crocodilia, aves, monotremata, metatheria, eutheria
4 major vertebrate taxa
myxinoidea, petromyzontida, chondrichthyes, teleostomi
teleostomi includes
actinopterygii, sarcopterygii, tetrapots
tetrapods include
amphibia, amniotes
amniotes include
sauropsida, mammalia
gnathostomata
vertebrates with jaws
amniota
turtles, lizards/snakes, crocodiles, birds, mammals
synapomorphies - amnion, chorion, allantois
sauropsida includes
turtles, lizards/snakes, crocodiles, birds
what type of animal in protostomes
slugs, worms, insects etc
2 main vertebrate taxa
agnatha, gnathostomata (jaw mouths)
agnatha includes
myinoidea, petromyzontida
gnathostomata includes (5 smaller categories)
elasmobranchii, holocephali, actinopterygii, sarcopterygii, tetrapods
chondrichthyes include
elasmobranchii, holocephali
**secondary loss of skeletal bone