Igneous Intrusions. Igneous intrusions form when magma cools and solidifies before it reaches the surface. Three common types of intrusion are sills, dykes, and batholiths (see image below). form when magma intrudes between the rock layers, forming a horizontal or gently-dipping sheet of igneous rock.The Whin Sill (top left image) in N. England provided a defensive cliff-line on which the Romans built Hadrianâs Wall.form as magma pushes up towards the surface through cracks in the rock.orm when magma intrudes between the rock layers, forming a horizontal or gently-dipping sheet of igneous rock. The Whin Sill (top left image) in N. England provided a defensive cliff-line on which the Romans built Hadrianâs Wall. form as magma pushes up towards the surface through cracks in the rock.
The scientific name for the phylum of cartilaginous fishes is Chondricthyes. More specifically, sharks are categorized under subclass Elasmobranchii which is then divided into â¦ the subdivisions Selachii (sharks) and Batoidea (skates and rays).
Learn more about this article. The frilled-neck lizard (Chlamydosaurus kingii), also known as the frilled lizard or frilled dragon, is a type of lizard that is found mainly in northern Australia and southern New Guinea.hlamydosaurus kingii is one of Australia's most distinctive and familiar dragon lizards. It is a large lizard, averaging 85 cm (33 inches) in length. C. kingii is moderately robust with long limbs and a moderately long tail. The general coloring of this lizard is grey-brown.