GLY-1842 Lecture Notes - Lecture 4: Phylocode, Chordate, Triceratops
Document Summary
Attempt to organize our conceptions of nature. Artificial human based, species* is only natural unit. Biological species concept*** species is a group of organisms that can interbreed and produce viable offspring. Kingdom phylum class order family genus (italicized or underlined) species (a binomen- two names + author, also for author. examples: sapiens linne") italicized , except. Tyrannosaurus rex osborn or homo example with trex. T. rex osborn if you want to name a new species you need new morphology. Triceratops + new word, triceratops northcarolinis heckert new genus, must be completely new name, serious name, could be septaceratops or something. Reptiles* = have scales lump lizards, snakes, turtles, crocs with dinosaurs. *linnaean, created the reptilia category based on similarity, any thing with scales was a reptile. * ___ means grade not a natural group, ignores some descendants. Dinosaurs are all descendants of the last common ancestor of.
