“We compared Utaurora's anatomy to various other radiodonts, arthropods, etc. Then we used that data matrix to search for the best trees,” said Wolfe.

The newly discovered Youti yuanshi larva fossil is so well-preserved that it provides a road map for arthropod evolution during the Cambrian period.

In 1822, a French naturalist by the name of Geoffrey Saint-Hilaire cut open a lobster and noticed that its arthropod anatomy was essentially a mirror image of our own, along what is called the ...

For over a century, the Cambrian arthropod Helmetia expansa remained a mystery. Discovered by paleontologist Charles Doolittle Walcott in 1918, it was initially classified as a crustacean. Despite ...

Without this conspicuous white mineral, we may have never spotted the brain. A fossil no-brainer One of the challenges of interpreting ancient arthropod anatomy is the lack of close modern relatives ...

One of the challenges of interpreting ancient arthropod anatomy is the lack of close modern relatives available for comparison. But luckily for us, Euproops can be compared to the four species of ...

A remarkably preserved 520-million-year-old Youti Yuanshi fossil, no bigger than a poppy seed, has unveiled unprecedented details of early arthropod anatomy. Using advanced imaging, researchers ...

Anatomical Firsts in Early Arthropods A team of scientists have discovered an ancient arthropod that may show the origins of branched limbs and the first gill-like breathing structures in the clade.

Arthropods are animals that are covered in a hard external skeleton and walk on jointed legs. They include the insects, arachnids like spiders and scorpions, millipedes and centipedes, and much more.

The discovery of this clasper-like limb in trilobites reveals that the complex mating behaviors that are observed in modern arthropods originated during the Cambrian Explosion over 500 million ...

Scientists have decoded the sea spider’s genome for the first time, revealing how its strangely shaped body—with organs in its legs and barely any abdomen—may be tied to a missing gene. The detailed ...

Without this conspicuous white mineral, we may have never spotted the brain. A Fossil No-Brainer One of the challenges of interpreting ancient arthropod anatomy is the lack of close modern relatives ...