Arthropod appendages are specialized for diverse roles including feeding, walking, and mating. Fossils from the Cambrian period (539 to 487 million years...
Nectocaridids are enigmatic Paleozoic animals with a controversial position. These creatures were adapted for swimming, having fins, a head region with...
First published in 1865 as a caterpillar, nearly fifty years before the discovery of Canada’s Burgess Shale, Palaeocampa anthrax shuffled between classifications...
Paleontologists have analyzed the fossilized features of the brain and central nervous system of Mollisonia symmetrica, an extinct animal that lived in...
Paleontologists have analyzed the body profiles of Ediacaran-Cambrian organisms by using trace fossils as proxies for body fossils.
A reconstruction of...
Mosura fentoni lived in what is now Canada during the Cambrian period, approximately 506 million years ago.
Life reconstruction of Mosura fentoni. Image...
The rapid increase in diversity and abundance of biomineralizing organisms during the Early Cambrian epoch (around 535 million years ago) is often attributed...
Based on multiple analytical techniques applied to well-preserved soft-bodied specimens of two trilobite species, the Late Ordovician species Triarthrus...
Named Youti yuanshi, the newly-identified euarthropod species fills an important gap in our understanding of how the arthropod body plan originated and...
Characterized by a finless torpedo-shaped body, Nuucichthys rhynchocephalus is the first soft-bodied vertebrate known from the American Great Basin.
Nuucichthys...
Mandibulates are an example of evolutionary success, representing over half of all current species on Earth. Today, mandibulates are everywhere: from sea-dwelling...
Paleontologists have unearthed a well-preserved fossil assemblage of Cambrian trilobites in the High Atlas of Morocco. The 510-million-year-old specimens...
Euchelicerata is a large group of arthropods comprising horseshoe crabs, scorpions, spiders, mites and ticks, as well as the extinct sea scorpions and...
Adorned with fins down the sides of its body, a distinct head with long antennae, massive jaw structures inside its mouth and growing to more than 30 cm...
In a 100-page monograph published in the journal Papers in Palaeontology, paleontologists have described ten new species of trilobites from the tuff-bearing...
In the search for life in the Universe, Earth provides a template of evolution for the one habitable planet we know. Earth’s atmospheric composition...
The 510-million-year-old fossils from the Forteau Formation of Newfoundland and Labrador, Canada, are microscopic, look like spiny balls connected together,...
Minterichnus shieldi, a new type of trace fossil (resting trace) of a phyllocarid crustacean from Texas shows animals trapped in a tidal pool, just before...
Paleontologists from Yunnan University, the University of Leicester and the Natural History Museum, London have conducted a microtomographic study of new...
