Anatomical diagram of Mosura fentoni, showing preserved details of the nervous system in purple, the digestive system in green, and the circulatory system in orange.

The fossils of Mosura fentoni -- a species of arthropod that lived in the Cambrian Period -- were discovered in Burgess Shale in the Canadian Rockies, ... the digestive system in green, ...

A rare glimpse inside a 510-million-year-old digestive system suggests feeding was a complicated business for the first arthropods. Even this early in animal evolution, some animals had a variety ...

The extinct 506-million-year-old arthropod is named after the fictional Japanese monster Mothra. ... including some elements of the nervous system, circulatory system, and digestive tract.

Way, way, way back then and now. Given its physical characteristics, the researchers think that Y. yuanshi displays features of both extinct and extant arthropods.Some are ancestral ...

Arthropods first appeared between 521 and 529 million years ago, ... Preserved within the fossilized digestive system of Timorebestia was Isoxys, a swimming arthropod that had long, ...

No arthropod visual system preserved in its entirety occurs in the fossil record except that of a modern-type fly ... XTM also revealed the three-dimensional morphology of the digestive system.

A fossil bed in the High Atlas Mountains of Morocco is allowing new insights into the anatomies of arthropods ... rendered with transparency and showing the segmentation of the digestive system ...

These arthropods’ unusual digestive system can act like a heart and gills LEGGY MULTITASKERS The skinny legs of sea spiders (one shown from Antarctica) hold guts that digest food and help pump ...

During the Cambrian period (543 million to 490 million years ago), arthropods emerged as one of the most successful animal groups on Earth; they now represent approximately 80% of all species ...