Sunday, 1 June 2014

CANADODUS SUNTOKI: 25-MILLION YEAR OLD FOSSIL FISH FROM SOOKE

A new genus and species of prehistoric fish have been named after a Vancouver Island collector who discovered a well-preserved fossil of the creature in Sooke.

The species named the Canadodus suntoki by Russian researcher Evgeny Popov is named after collector Steve Suntok who donated the fossil to the Royal BC Museum in 2014.

The name roughly translates to “tooth from Canada,” as the fossil is part of a fish dental plate.

Popov, who is one of the world’s leading experts on fossil holocephalian fishes, says that the fossil that Suntok found is an entirely new fish compared to anything found before.

“I knew it was something significant. Not necessarily a new species but something significant,” Suntok told CTV News Thursday.

The fossil dental plate indicates that the fish was likely a type of Chimaeridae, which is a species of fish that feeds on invertebrates by crushing their shells on its hard flat dental plates, before eating the animal inside, according to researchers.

Suntok found the fossil in a northwest portion of Sooke. Researchers say that Sooke is an excellent area for paleontological discoveries, with a variety of fossils at the Royal BC Museum coming from the region.

Ancient whale vertebrae and rib specimens have been found in Sooke and donated to the museum, as well as a potential terrestrial mammal bone, fossil leaves, and many invertebrate fossils, such as oysters, barnacles and snails.

The Suntok family has experience finding and preserving fossils on Vancouver Island. Many fossils discovered by the family have been donated to the Royal BC Museum, including a new waterbird coracoid bone which was named after Steve Suntok’s daughter, Leah, in 2015, named the Stemec suntokum.

“Because of erosion, every time we go there there’s something new,” said Suntok.

“New things get exposed so from time to time I go back just to check out the site. On this occasion, I found something I’d never seen before, which was pretty exciting.”

Researchers say that cliff faces near Muir Creek and beaches near Kirby Creek in Sooke “easily contain the richest exposures of fossils near Victoria.” Fossils in the area tend to date back approximately 25 million years.

Vancouver Island palaeontologist Marji Johns, who is a co-author of research on the Canadodus suntoki, says that she was thrilled by the discovery.

Sooke, British Columbia and Juan de Fuca Strait

Johns says that very few palaeontologists in B.C. and Canada are able to do fieldwork while conducting research and that volunteer collectors like the Suntok family are largely responsible for finding rare and usual fossils..

Suntok says that having the Canadodus suntoki named after him is a dream come true.

“I’m ecstatic about it. It’s the dream of every amateur collector,” he said.

“It’s an honour. I don’t deserve it, but I’m extremely appreciative of it.” 

Reference: 

https://www.iheartradio.ca/580-cfra/it-s-an-honour-newly-discovered-fossil-fish-species-named-after-vancouver-island-collector-1.13515837

Wednesday, 21 May 2014

Saturday, 3 May 2014

ISOGRAPTUS MAXIMUS

This fellow is the graptolite, Isograptus cf. maximus, from the Piranha Formation, Middle Ordovician (Dapingian), Bolivia.

Graptolites (Graptolita) are colonial animals. The biological affinities of the graptolites have always been debatable. Originally regarded as being related to the hydrozoans, graptolites are now considered to be related to the pterobranchs, a rare group of modern marine animals.

The graptolites are now classed as hemichordates (phylum Hemichordata), a primitive group which probably shares a common ancestry with the vertebrates.

In life, many graptolites appear to have been planktonic, drifting freely on the surface of ancient seas or attached to floating seaweed by means of a slender thread. Some forms of graptolite lived attached to the sea-floor by a root-like base. Graptolite fossils are often found in shales and slates. The deceased planktonic graptolites would sink down to and settle on the sea floor, eventually becoming entombed in the sediment and are thus well preserved.

Graptolite fossils are found flattened along the bedding plane of the rocks in which they occur. They vary in shape, but are most commonly dendritic or branching (such as Dictoyonema), saw-blade like, or "tuning fork" shaped (such as Didymograptus murchisoni).

This fellow is pure "Bat Sign" with his showy "wings" looking like something out of a DC Comic. He's also received a nod as the Panem symbol in Hunger Games and been described as having eagle or angel wings. No matter how you interpret his symbolism, there is not doubt that he is spectacular. He is in the collection of the deeply awesome Gilberto Juárez Huarachi from Tarija, Bolivia.