Fossils Flashcards
(53 cards)
Is a Brachiopod Equivalve or Inequivalve
Inequivalve
Is a Brachiopod Equilateral
Yes
Is a Brachiopod Inequilateral
No
Are Brachiopods marine?
Yes - exclusively
What type of feeder is a brachiopod
Benthic sessile and attached to seafloor
When did Brachiopods live?
Ord - Recent
When were Brachiopods most abundant
Palaezoic
What are both valves of Brachiopod called
Pedicle and Brachial Valve
Are Bivalves equivalve or inequivalve
Equivalve
When did bivalves live
Cambrian to Recent
What type of feeder was a bivalve
Suspension filter feeder
Are bivalves molluscs?
Yes
Can some bivalves be equilateral?
Yes
Name species of Bivalve which can swim
Pecten
Name sessile bivalve notably found in cretaceous
Rudists (form reefs)
Name the main fauna you would find in a tropical lagoon.
Sea grass, Finger Corals, Sea fans, Brain Coral
Which came first, Triassic or Permian?
Permian
When did tabulate corals live?
Early Ordivician - Permian (abundant in Silurian)
What is the difference between Tabulate and Rugose Corals?
Tabulate are colonial - Rugose are mostly solitary
Tabulate have tabulae - Rugose have septa and deseppiments.
When did Rugose Corals live?
Middle Ord - Permian
When did Scleratinian Corals live?
Triassic - Recent
Are Scleractinian Corals made of aragonite or calcite?
Aragonite
Are Scleractinian Corals colonial or solitary?
Both
What part of the sponge does the water exit?
Osculum