Paleontologists from the Australian Museum Institute, the University of New South Wales, the University of Canberra and CSIRO describe a new species of Osmel-type fish from fossilized bodies found in New South Wales, Australia. The fish’s preserved stomach content indicates an opportunistic bottom-pore-like diet, as evidenced by the ruins of many phantom midge larvae, two insect wings, and bivalve remnants.
Habits and fin locations Fell Aspis Block Sea. Scale bar – 8 mm. Image credit: McCurry et al. , doi: 10.1080/02724634.2024.2445684.
The newly described fish species, which lived in the Myosense period about 15 million years ago, belonged to the Osmerforfos (freshwater smell and its allies).
Named after Professor Jocchen Bloc of Australian National University Fell Aspis Block Sea It is the first fossil freshwater smell found in Australia.
“I am extremely proud that this world’s first discovery was named after me,” Professor Brocks said.
“This discovery opens a new pathway to understanding the evolutionary history of Australia’s freshwater fish species and ancient ecosystems.”
Professor Brox discovered several fossils Fell Aspis Block Sea At the McGrath Flat Fossil Site near Gurgon, New South Wales.
“Before the discovery of this fossil, scientists lacked concrete evidence to identify how this group of fish evolved over time and when they arrived in Australia,” said Dr. Matthew McCurry, of the Australian Museum Institute and the University of New South Wales.
“Fell Aspis Block Sea This is the first fossil freshwater Australian confectionery found in Australia. ”
“The discovery of fossil freshwater fish 15 million years ago provides an unprecedented opportunity to understand Australia’s ancient ecosystems and the evolution of fish species.”
“The fossil is part of a diverse range of fish species in Australia, including species such as Australian greyling and Australian confectionery.”
“But without the fossils, it would have been difficult to tell exactly when the group had arrived in Australia and whether they had changed at all over time.”
Stored stomach contents Fell Aspis Block Sea It offers paleontologists a glimpse into the behavior of these ancient species.
“We know that now Fell Aspis Block Sea Although they provided an invertebrate range, the most common prey was small phantom midge larvae,” Dr. McCurry said.
“One of the fossils shows parasites attached to fish tails. It is young freshwater that burns glotidium.”
“These boys Mussarsatach are riding up and down streams on the gills and tails of fish.”
“This little fish is one of the most beautiful fossils I’ve found at McGrath Flat, and it was a real surprise to me to find the first vertebrate among the abundant fossils of plants and insects,” Professor Brocks said.
One of the most exciting aspects of the piece was that they were able to convey the colour of Fell Aspis Block Sea.
Dr. Michael Frise, a paleontologist at the University of Canberra, said:
“We were able to use a powerful microscope to see structures that produce small colours known as melanosomes.”
“Fossilized melanosomes have previously allowed paleontologists to reconstruct feather colors, but melanosomes have never been used to reconstruct color patterns in long-extinct fish species.”
paper The survey results were published this week Journal of Vertebrate Palaeontology.
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Matthew R. McCurry et al. Paleontology of a new Osmar type fish species from Australia. Journal of Vertebrate PalaeontologyPublished online on March 17th, 2025. doi:10.1080/02724634.2024.245684
Source: www.sci.news
