What Is A Fossil such as Cleoniceras Ammonite?



Exactly what is a fossil? While this is a simple question, the answer can be simple or a bit more complicated.

The concise answer to that question is "A fossil such as Ammoniteis the remains or proof of any creature or plant that survived on the earth in a previous geologic age."

There are so many KINDS of fossils. The answer to that concern will take a bit more expedition.
{There are numerous fossil classification systems in use today, however the one that I like the best is the one used by Peter Larson and Kristin Donnan in their book, Bones Rock! They group fossils into two categories:

Type I- the remains of the dead animal or plant or the imprint left from the remains.

Type I includes:

  • bones.
  • teeth.
  • skin impressions.
  • hair.
  • the hardened shell of an ancient invertebrate (an animal without a foundation) like a trilobite or an ammonite (such as Cleoniceras from Madagascar).
  • impression of an animal or plant, even if the real parts are missing out on.
| There are numerous fossil classification systems in use today.

So now you have one brief and one long response to the question: "What is a Fossil?" Let's develop on that.

Type II- Something that was made by the animal while it was living that has hardened into stone. These are called trace fossils.

Type II includes:

  • footprints.
  • burrows.
  • coprolite or animal poop.


Type I fossils can be the actual thing that it when was, like a piece of bone or hair or feather. More often the bone material is replaced by different minerals consisted of in the liquid of the sediments that buried it. Exactly what was as soon as bone is now some sort of crystal or mineral.

This process also takes place with shells, exoskeletons and wood. , if the areas in the bone are filled with liquid minerals which later on solidify it is called permineralization.
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The procedure takes place so slowly that each cell is dissolved and changed by a specific liquid mineral before it hardens. In petrification, every information down to the cellular level is duplicated in the minerals.

Type I can likewise be molds or casts of the initial animal or plant part. If the initial organism decays, leaving an imprint and an empty space, it is called an exterior mold or just a mold. If an area in the structure is filled with minerals as the initial animal or plant part liquifies, it is called a cast.

Now you have the short answer and the long response to the question "What is a fossil?".

Was that more linked here info than you were looking for? I hope not! Fossils are the illustrations on the pages of rock that are the earth's history. I believe the more you know, the more you'll wish to discover about these remarkable traces of life we call fossils.

There are so many KINDS of fossils. There are a number of fossil classification systems in usage today. Type I fossils can be the real thing that it once was, like a piece of visit bone or hair or plume. Fossils are the illustrations on the pages of rock that are the earth's history. I think the more you understand, the more you'll desire to discover about these remarkable traces of life we call fossils.

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