What Is A Fossil such as Ammonite from Madagascar?



What is a fossil? While this is an easy question, the response can be basic or a bit more complex.

The sweet and brief response to that question is "A fossil such as Ammoniteis the remains or proof of any creature or plant that lived on the earth in a previous geologic age."

There are so many KINDS of fossils. A more crucial question for a curious trainee is "What kinds of fossils exist?" The answer to that question will take a bit more exploration. You'll need to dig a little deeper ... pun intended!

The Long Answer
{There are numerous fossil classification systems in use today, but the one that I like the very best is the one utilized by Peter Larson and Kristin Donnan in their book, Bones Rock! They group fossils into two classifications:

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 solidified shell of an ancient invertebrate (an animal without a backbone) like a trilobite or an ammonite (such as Cleoniceras from Madagascar).
  • impression of an animal or plant, even if the actual parts are missing out on.
| There are numerous fossil classification systems in use today.

Now you have one short and one long answer 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 actually solidified into stone. These are called our website trace fossils.

Type II includes:

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


Type I fossils can be the real thing that it when was, like a piece of bone or hair or plume. More frequently the bone product is replaced by various minerals included in the liquid of the sediments that buried it. Once bone is now some sort of crystal or mineral, what was.

This process likewise accompanies shells, exoskeletons and wood. , if the spaces in the bone are filled with liquid minerals which later on solidify it is called permineralization.
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Often the natural product is liquified by the mineral-laden water. The procedure occurs so slowly that each cell is dissolved and replaced by a particular liquid mineral prior to it solidifies. This is called petrification. In petrification, every detail to the cellular level is duplicated in the minerals.

Type I can also be molds or casts of the original animal or plant part. If the initial organism decays, leaving an imprint and a void, it is called an exterior mold or merely a mold. If a space in the structure is filled with minerals as the initial animal or plant part dissolves, it is called a cast.

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

Fossils are the illustrations on the pages of rock that are the earth's history. I think the more you know, the more you'll want to discover about these interesting traces of life we call fossils.

There are so lots of KINDS of fossils. There are several fossil classification systems in use today. Type I fossils can be the actual thing that it when was, like a piece of bone or hair or feather. Fossils are the illustrations on the pages of rock that are the earth's history. I think the more you know, the more you'll desire to find about these remarkable traces of life we call fossils.

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