Early arthropod specimens don’t have claws like these. Instead, Cambrian arthropods usually have an antenna in that position.

A breakthrough discovery in Utah has revealed a 500-million-year-old chelicera fossil that is the oldest known spider and ...

It had been a long day of teaching for Rudy Lerosey-Aubril. As a reward, he returned to cleaning an intriguing Cambrian ...

A 500-million-year-old fossil pulled from the Utah desert may be the earliest confirmed relative of spiders and scorpions, ...

What started as routine fossil cleaning turned into a major scientific surprise when researchers uncovered a tiny claw in a ...

Researchers argue that a newly examined specimen found decades ago in Utah provides new clues to the ancestors of ...

An incredible fossil has become the oldest known chelicerate – the group of animals that includes spiders and scorpions.

A fossil originally discovered in the 1980s only recently received a closer look, revealing groundbreaking evolutionary ...