Arthropod Diversity & Evolution Flashcards
Hexapoda
Insects
Myriapoda
Centipedes & Millipedes
Chelicerata
Horseshoe crabs, sea spiders, & arachnids
Crustacea
crabs, lobsters, shrimp, isopods, copepods, barnacles
Trilobitomorpha
Trilobites order
Onychophora
Velvet worms
Sclerotization
Chitin cross-linking as a method for exoskeleton hardening
Calcification
using mineral deposits as a method for exoskeleton hardening
Tagmata
segmented body with specialized body regions
Prothoracic legs
1st pair of legs
Mesothoracic legs
2nd pair of legs
Metathoracic legs
3rd pair of legs
Prolegs
fleshy projections on a larvae
Pterygota
class of insects that evolved from a winged ancestor
Primarily apterous
Insects w/o wings whose ancestors also do not have wings