Phylum Deuterostomes Flashcards
what are the the phylums of deuterostomia? (There are 3)
Hemichordata
Echinodermata
Chordata
what are the classes of phylum echinodermata? (there are 5)
- class asteriodea (sea stars)
- class ophiuroidea (brittle stars)
- class echinoidea (Sea urchins, sand dollars)
- class holothuroidea (sea cucumber)
- class crinoidea (Sea lilies)
what are the subphylum present in phylum chordata? (There are 2)
- subphylum urochordata
- subphylum craniata
what are the general characteristics of subphylum urochordata in phylum chordata?
- sea squirts, tunicates
- filter feeders, sessile adult
- cellulose tunic
what are the classes of subphylum craniata? (theres 9 :(( )
- class myxini
- class petromyzontes
- class chondrichthyes
- class actinopterygii
- class sarcopterygii (poly/paraphyletic)
- Class Amphibia (poly/paraphyletic)
- class mammalia
- class reptilia (paraphyletic)
- class aves
What classes are Agnatha?
Myxini and petromyzontes
What are all the other classes?
Gnathostomata
what are in myxini in subphylum craniata?
hagfish
what are in petromyzontes in subphylum craniata
Lampreys
what are in chondrichthyes in subphylum craniata
- cartilage fish
- sharks, skates, rays, chimera
- no swim bladder or lungs
what are in actinopterygii in subphylum craniata
- ray-finned fish (most fish)
- operculum covering gills
- dermal scales
- with swim bladder or lungs
what are in sacropterygii in subphylum craniata
lobe-finned fish (needs to include the amphibia, mammalia, reptilia, and aves)
what are in amphibia in subphylum craniata
- monophyletic if just the modern ones (lissamphibia)
- usually no scales
what are in mammalia in subphylum craniata
hair, mammary glands
what are in reptilia in subphylum craniata
- crocodilians, squamates, tuatar, turtles
- need to include the birds
- epidermal scales
