Corals Flashcards
What is the phylum and class for corals
Cnidaria
Anthozoa
What do they all have
Stunning cells called nematoblasts
When did they evolve
Cambrian
What is the soft body called
Polyp
What is its skeleton made out of
Calcium carbonate
What is the whole skeleton called
Corallum
What are the types of corals
Solitary
Compound
What is the Calice
Bowl shaped depression where the soft polyp sits
What is the columella
Rod that supports the septa
What is the epitheca
Outer most layer of the skeleton
What is the tabula
Horizontal plates dividing the coralita skeleton
What is the corallite
The skeleton produced by one coral polyp
What are the growth lines
Wrinkles produced as the coral grows
What are dissepiments
Curved plates connected to septa and tabulae
What are the septa
Vertical plates dividing the corallite skeleton
What are the tree main orders of corals
Rugose
Tabulate
Scleractinia
Are rugose corals extinct and are they solitary or colonial
Yes
Both