To see Global Grade 3's post, click the link blow...
Life can be full of wonder and discovery if we only keep our minds and senses open to the world around us.
Some Fossils In My Collection
I didn't think I would be preparing another extended comment for you so soon but you wrote a post about one of my favourite topics, fossils. I thought I would write a post so I could share photos of some fossils in my collection and links to other posts written on this blog.
At the end of this post, I have added links to some other posts I have written about fossils and dinosaurs.
Some of my favourite fossils I collected.
Being able to find your own fossils makes a specimen more special because you could be the first person to have seen it.
The sample below was collected from a dolomite quarry. You can still see the remains of the original shell but the soft parts of the animal have been replaced by dolomite. This shell belonged to an animal living perhaps 30,000 years ago.
The next dolomite stone was found when I was walking along a beach. You can see it has been rounded by wave action and rubbing against other rocks. In it are the remains of small shellfish. I can stlll find small shells similar to these on beaches today.
Below is part of a fossilised tree trunk I found when looking over a rockfall. I only have this section but I always wondered if the entire tree was somewhere in the tonnes of rock in the rockfall. According to my geological map, this fossil may have been a living tree perhaps 200 million years ago.
I don't know when the rockfall happened but I had also been to the same place before part of the cliff above gave way.
WARNING: unstable areas can be very dangerous. I only examined the edges of the rockfall and kept well away from the cliff area.
In the next fossil we see a leaf in the middle and a piece of a branch below it. As it was found in the same rockfall as the fossilised tree trunk above, it may have come from the same tree.
And some favourites I purchased...
Fossiled ammonite shell. Ammonites lived in the ocean from about 400 million to 65 million years ago.
This ammonite fossil shell has been cut in half and polished to show the chambers inside the shell.
Dinosaur coprolite from U.S.A. Did you know it can be possible for scientists to find what animals had eaten from coprolite samples? This was from a herbivore dinosaur. It may only be a coprolite but it is my only real dinosaur fossil.
Trilobite - Species of trilobites roamed the oceans from about 500 to 250 million years ago.
I've included the photo below but it isn't a fossil. It is a piece of wood from a New Zealand kauri tree found in a swamp. Because of the quality of the timber and the lack of oxygen in the swamp, it had been preserved but you can see the writing printed on the timber telling us it has been carbon dated to 44500 years. Imagine, it's over 40000 years old but looks as though it has been cut from a modern tree. Kauri trees are still found in New Zealand forests today.
Below is a photo of a kauri tree I had taken in 1986. It is known as Tane Mahuta. It's thought to be between 1250 and 2500 years old but is still alive. It's the largest kauri tree known to be standing in New Zealand. In the Maori language, Tane Mahuta means "Lord of the Forest".
Some of the most interesting dinosaur fossils found are those of dinosaur eggs. Look at the photo below. It shows dinosaur eggs in a nest so we know at least some dinosaurs had nesting grounds for their eggs. Can you imagine seeing a heard of nesting dinosaurs caring for their eggs?
And now for something a little different.
Below is a photo of a toy dinosaur egg.
When placed in water and left, the egg starts to open and the toy dinosaur can be seen hatching. It grows (swells) in the water. It can take up to one week so I might have to top up the water. According to the information sheet, the dinosaur in this egg is named Matilda and is a Diamantinasaurus matildae. The diamantinasaurus is an Australian dinosaur. Fossils were found in the Australian state of Queensland.
I don't know whether to try it or not because I like the secret inside being a secret.
Would you hatch it if you had one?
It's only through fossils and other remains we can start to discover animals and plants from the past. As examples, some are simply washed out of the ground in storms, some uncovered in mining, and some are seen after rockfalls. Back in 1984, I visited Naracoorte's Victoria Fossil Cave in South Australia. Animals had wandered into the cave, become lost and died. Paleontologists had been digging and found, amongst other animals, the remains of an extinct kangaroo species as well as diprotodon (a little like a huge wombat). Here is a photo of the dig site back in 1984..
I checked Wikipedia to see what they have since discovered and found Wikimedia Commons has a wonderful public domain photo taken in the cave in 2006. It shows thylacoleo skeleton. This was an extinct carnivorous marsupial. Being a marsupial, the females would have had pouches for their young.
And now for a little gift I posted to you today...
I have just finished collecting cards from a new series named "Ancient Animals". I thought you might like one of the sets for your class. It has 81 cards on different types of animals from the past. It does come with a special magnifying glass with a UV light to show secret information on some of the cards. I had to put the UV magnifying glass in a small box to keep it safer. Both were posted on October 16. If all goes well and both parcels reach you, I wonder how long they will take and whether the book or magnifying glass arrives first?