Mosura fentoni, as the species is known, belongs to a group called radiodonts, an early offshoot of the arthropod evolutionary tree, according to a new study published Tuesday in the journal Royal ...

Researchers have wondered how an alligator-size arthropod lived more than 300 million years ago. The discovery of an intact Arthropleura head offers new insights.

Each group of arthropods is defined by a unique arrangement of tagmata: for instance, insects have a head, thorax, and abdomen, while spiders possess a cephalothorax and abdomen.

The extinct 506-million-year-old arthropod is named after the fictional Japanese monster Mothra. ... “Radiodonts were the first group of arthropods to branch out in the evolutionary tree, ...

Stanleycaris belonged to an ancient, extinct offshoot of the arthropod evolutionary tree called Radiodonta, distantly related to modern insects and spiders.

Arthropods were often found in high densities, with figures up to 11,000 m⁻². These are higher densities than those previously recorded from other trees in temperate or tropical regions. Communities ...

Mosura fentoni, as the species is known, belongs to a group called radiodonts, an early offshoot of the arthropod evolutionary tree, according to a new study published Tuesday in the journal Royal ...