Milk River Formation - Members

Members

  • Telegraph Creek – The lowest member, it represents mudstone deposited just offshore in a marine setting. It has produced the ammonite index fossil Desmoscaphites bassleri (Payenberg et al. 2002), which has an age of ~84.5 Ma.
  • Virgelle – Overlying the Telegraph Creek Member, it is a massive cliff-forming yellow to white sandstones. It was deposited in a shoreface environment, including beach, etc. (Payenberg et al. 2002).
  • Deadhorse Coulee – Consists of shales, siltsones, sandstones, and coal beds. The Member was deposited in rivers, floodplains and swamps. Most of the vertebrate fossils come from this member.

There are some dinosaur remains from the Formation, but these are not very well known. A more concerted effort at locating specimens would undoubtedly produce many new taxa.

Read more about this topic:  Milk River Formation

Famous quotes containing the word members:

    The state of society is one in which the members have suffered amputation from the trunk, and strut about so many walking monsters,—a good finger, a neck, a stomach, an elbow, but never a man.
    Ralph Waldo Emerson (1803–1882)

    If the education and studies of children were suited to their inclinations and capacities, many would be made useful members of society that otherwise would make no figure in it.
    Samuel Richardson (1689–1761)

    This will not be disloyalty but will show that as members of a party they are loyal first to the fine things for which the party stands and when it rejects those things or forgets the legitimate objects for which parties exist, then as a party it cannot command the honest loyalty of its members.
    Eleanor Roosevelt (1884–1962)