Acanthostegaacantho.jpg

  • extinct tetropod genus
  • had 8 digits on each hand and foot linked by webbing
  • fish-like shoulder and forelimb
  • had lungs,but its ribs were to short to give support to its chest cavity out of water
  • its gills were internal and covered like those in fish
  • probably lived in shallow,weed choked swamps
  • had a lot of small teeth in the outer row,and two large fangs and some small teeth in the inner row
  • lived in late Devonian period

I10-72-Acanthostega.jpg