lab 4 Flashcards
what is anapsid?
no holes, jaw muscles connected to skull
what is diaspid?
2 holes (3 hole with eyes), made up of the squamosal, post orbital and parietal bones (jugal instead of partial in lower jaw)
what is synapsid?
1 hole (2 with eyes) with the squamosal, post orbital and jugal bones
what information does temporal fenestration provide?
the jaw strength, more holes allow more muscle connection points
what does homodont mean?
all the teeth are similar shape
what does heterodont mean?
all the teeth are different shape
what is polyphydont?
many replacement teeth
what is edentate?
the skull is apart of the jaw and used teeth
what does tooth uniformity tell you about an animal?
how variable their diet
what is diphydont?
has only 2 sets of teeth their whole lifetime
what are only creatures that are edentate?
turtle and bird
only creature that is diphyodnt?
mammals
what 3 creatures are/can be heterodont?
mammals, some snakes and fish
describe secodont teeth?
pointy and sharp, specially for carnivores
describe the selendont teeth
curved ridges form from to back
