Queensland Museum scientists describe the 400-million-year-old fossil Palaeospondylus australis, possibly the smallest ...

Queensland Museum scientists have described a 400-million-year-old fossil, which is possibly the smallest vertebrate fossil ...

Jawless fishes, the 'sister' group of jawed vertebrates, use leucine-rich repeat–containing proteins as antigen receptors. New work shows that the two isotypes of variable lymphocyte receptors ...

Named palaeospondylus australis, the Queensland find marks the first time the genus has been found outside Scotland. It's ...

The team looked for similar sequences in the genomes of jawed vertebrates, jawless vertebrates, and a few invertebrate species to see if RetroMyelin was present in other vertebrate species.

The results have helped answer questions on when these ancient, jawless fish branched-off the vertebrate evolutionary tree. The discovery is incredibly important as it changes our view of the ...

A tropical reef in the Czech Republic, 409 million years ago: Radotina, one of the most primitive jawed vertebrates with teeth, emerges from its hiding place in the empty shell of a giant nautiloid to ...

During early evolution of jawed vertebrates, dermal denticles were transferred from the skins of primitive fish to their mouth. In the millennia that followed, the tiny appendages went on to ...

Although many of these features were present in ancestral jawless vertebrates, others—such as jaws and the sympathetic ...