Unusual! This blind sea creature moved on poles

Hinatea Chatal Hinatea Chatal 5 min
Fossil arthropods Canada
The arthropods discovered by Canadian paleontologists are very well preserved despite their age: These marine animals populated the oceans about 450 million years ago!

This discovery took place near by east side of Lake Simcoe in Ontario and Canada. That fossils of these strange creatures was in a quarry, nicknamed “Paleo Pompeii”, because known to be filled with marine fossils. The arthropods discovered are exceptionally well preserved despite their advanced age: these sea creatures populated the oceans around 450 million years!

A creature without eyes and moving on stilts:

sea ​​animals, christened Tomlinsonus dimitriis a specimen belonging to an extinct group ofarthropods called marrelomorphs and dates from the Ordovician period. There are two groups of marrelomorphs divided by their shields and their cephalic structures. The newly discovered species was without eyes and had stilted legs to move.

The fossil measures about 6 cm and has one main shield adorned with two curved horns covered with thorns that looks like hair. Its body is a bit reminiscent of spiders, with several pairs of legs segmented and mostly a pair of legs very unusual.

“Under the head there is this wonderful members which are extremely long and have foot-shaped projections at the terminal ends, which we think is a lot probably used to clear a path through the seabed. (…) It also looks like be blindbecause it has no eyes at all, “said Josepg Moysiuk, a researcher in evolutionary biology at the Royal Ontario Museum.

This prehistoric sea creatures recently discovered, Tomlinsonus dimitri, very similar to one other soft arthropodsalso extinct, called marella splendensdiscovered at the Burgess Shale in British Columbia, according to the team of paleontologists.

An outstanding natural conservation:

Lake Simcoe quarry where the fossil was found was in the Ordovician period one giant tropical shallow sea. It covered most of present-day Canada. Joseph Moysiuk did not expect find the species on the spot because previous excavations had only found dinosaur bones and shells.

This discovery is particularly surprising because soft tissue preservation is very rare. Because this type of body is broken down, it does not petrify. There is no only a few places in the world where soft species have been found. Echinoderm fossils have already been discovered at Paleo Pompeii, but this is first time that there are soft species there.

“What we see isquick funeral of the organizations that lived on this low flat bottom of the sea and which have been repeatedly suffocated by large mudslides underwater comes from storms “, says the researcher in evolutionary biology.

The researchers hope so the results of their studywith the title “A new marrellomorph arthropod from southern Ontario: a rare cases of preservation soft tissue on an open upper Ordovician marine shelf “and published in the Journal of Paleontology, will contribute to enrich the archives arthropod fossils.

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