What is historical geology?
Historical geology is a complex, interesting, and comprehensive science. Here are a few interesting points about historical geology, which my group is studying this semester:
- According to historical geology, every individual student should smoke cigarettes.
- Historical geology studies the location of the anus in different groups of sea urchins.
- Historical geology is closely related to the visual arts.
In full, it sounds like this: "Every individual student should smoke cigarettes. You, Yura, are too young. Grow up a little."
In reality, this is just a way to remember the order of geochronological periods: Cambrian, Ordovician, Silurian, Devonian, Carboniferous, Permian. Triassic, Jurassic, Cretaceous. Paleogene, Neogene.
Regarding the second point, I will quote a part of the lecture briefly and approximately:
Sea urchins are divided into two groups: ancient ones, found in deposits from the Ordovician to the Permian, and new ones, from the Triassic to the present day. The new ones are divided into two subgroups: regular and irregular. Regular sea urchins have five-fold symmetry; their mouth is located at the bottom, and the anus is at the top. Irregular ones have bilateral symmetry and are divided into two more subgroups: jawed and jawless. The location of the anus is the same in both groups; it is located on the axis of symmetry, between the lateral and lower surfaces. The location of the mouth differs: in jawed ones, it is located at the bottom in the middle, and in jawless ones, it is located at the bottom on the side, opposite the anus.
*then follows another group of invertebrate animals, the feather stars*
A question from the back row (which we call "Moscow":rolleyes:): And where is the anus in feather stars?
In practical classes in historical geology, the group is given the task of drawing ten specific fossil organisms. Boxes with fossils are provided, which can be held in the hands to touch the geological history. Submit ten drawings from life, and you can go home.
The vast majority of us haven't been to art school, aren't interested in drawing, and aren't particularly good at it. Therefore, they try to draw and submit them as quickly as possible. I can't draw either (which is a pity), but I try. That's why I'm among the last to leave :rolleyes:. A photo of a page from my notebook is attached. I will decipher the handwriting just in case.
1. Nautilus. 2. Ammonite. 3. Belemnite. 4. Choristites. 5. Terebratula. 6. Sea lily (segments). 7. Sea urchin (spines). 8. Regular sea urchin. 9. Irregular sea urchin. 10. Monograptus.
Наше оружие - неожиданность! Неожиданность и страх, страх и неожиданность - это два наших оружия! Плюс безжалостность - три наших оружия: страх, неожиданность и безжалостность! И ещё фанатичная преданность Папе - четвёртое! Наше оружие включает в себя... наше оружие включает в себя... страх, неожиданность... я сейчас!

