cephalaspis การใช้

• Fish include Cephalaspis, Cyathaspis, Auchenaspis.
• Like other ostracoderms, " Ateleaspis " had a head shield similar to that of " Cephalaspis ".
• The segment moves on to the Silurian period, where Haikouichthys has evolved into the jawless-fish " Cephalaspis ".
• The jawless fish " Cephalaspis lyelli ", from the Old Red Sandstone of southern Scotland, was named by Louis Agassiz in honour of Lyell.
• A short sequence depicts " Cephalaspis " evolving into " Hynerpeton ", amphibian-like tetrapods, who now hunt their arthropod contemporaries which have shrunk.
• The marine scorpion " Brontoscorpio " pursues a " Cephalaspis " but falls victim to the giant eurypterid " Pterygotus ", whose young feed on the smaller scorpion's body.
• Lightbody published several articles based upon his geological research, including " The Geology of Ludlow ", " Remarks on Mr Roberts'Paper on Cephalaspis ", " Notice of a Section at Mocktree ", " Passage Beds at Downton ", and " A Sketch of Geological Time ",
• The dorsal portion of its head armor differs from osteostracans in that the orbits of the eyes are set apart from each other, and that the shield has no pineal foramen ( the " hole " between the eyes of " Cephalaspis " and its relatives ), and that an opening at the base of the rostrum gives very little hints about the nature of the nasal openings.
• "A . salteri " strongly resembles the thyestiids " Procephalaspis " and " Thyestes ", and within Thyestiida, it represents a transitional form between the primitive, superficially " Cephalaspis "-like forms, such as " Thyestes ", and the more specialized tremataspid thyestiids, like " Tremataspis ", " Dartmuthia ", or " Dobraspis ", whose headshields tend to resemble hot buns or horseshoe crabs.