SQUALIDAE



-Distribution of Animal Family Through Time-

 [-Local Fossils-]   [-Range of Family-]
ERA:
Paleozoic
Mesozoic
Cenozoic
PERIOD:
Permian
Triassic
Jurassic
Cretaceous
Paleocene
Neocene
Pleistocene
RANGE:
 
 
 
 
 
 
 
 
 
 
 
 
 


-Taxonomy-

     Kingdom              Metazoa
      Phylum              Chordata
       Class              Elasmobranchii
        Subclass          Chondrichthyes
         Order            Squalomorpha
-Genera-

  • Centrophoroides
  • Centrophorus
  • Dalatias
  • Squalus
-Summary-

Diet:
  • Fish
Habitat:
  • Marine
Material:
  • Isolated Teeth
-Portrait-


   Throughout the evolution of the Squalidae (Dogfish Sharks), there is an ever more pronounced compression and increase in height of the teeth, resulting in the decrease of the number of functional tooth rows. They are characterized by the possession of dorsal fins all armed with strong spines, and for the most part are today rarely found in depths less than 200 metres. Centrophoroides, Centrophorus, Dalatias, and Squalus are all known from a relatively large collection of isolated teeth recovered from Maastrichtian marine deposits on the north coast of Hornby Island.
-Fossil Material-

Images of the material will be added to this space when available.