Where did Paradoxides live?
They lived in the shallow waters off the coast of a small continent that no longer exists called Avalonia by geologists. Avalonia has a complicated geologic history. It started out as small continent in between Africa and the northern part of Europe.
When did Paradoxides pinus live?
Middle Cambrian
Paradoxides is a genus of large to very large trilobite found throughout the world during the Middle Cambrian period.
What did the Paradoxides eat?
trilobites
It is believed by many scientists that Paradoxides were predatory animals, with other smaller trilobites potentially on their menu.
Why did trilobites go extinct?
It was at the end of the Paleozoic Era that the trilobite disappeared. For years the trilobite’s extinction had been blamed on a sudden increase in the numbers of trilobite predators. Other theories linked to trilobite extinction include climate change, sea-level fluctuation, and even the effects of meteorite impact.
Are trilobites harmful?
No, trilobites were not harmful species. They were a small, aquatic species that used to dwell in the depths of the ocean. However, they were extremely adaptable as they survived multiple major extinction events (such as the Cambrian explosion) before their own extinction at the end of the Paleozoic period.
What is the history of the Paradoxides?
See Article History. Paradoxides, genus of trilobites (an extinct group of arthropods) found as fossils in Middle Cambrian rocks of North America and western Europe (the Cambrian Period lasted from about 542 million to 488 million years ago).
What type of arthropod is Paradoxides?
Paradoxides, genus of trilobites (an extinct group of arthropods) found as fossils in Middle Cambrian rocks of North America and western Europe (the Cambrian Period lasted from about 542 million to 488 million years ago). Paradoxides has a well-developed head region terminating laterally in pointed spines that vary in development…
What is the size of Paradoxides davidis?
One record-breaking specimen of Paradoxides davidis, described by John William Salter in 1863, is 37 cm (15 in). The cephalon was semicircular with free cheeks ending in long, narrow, recurved spines. Eyes were crescent shaped providing an almost 360° view, but only in the horizontal plane.
Where is the gracilis muscle located?
Gracilis muscle is a long and slender muscle located in the medial (adductor) compartment of the thigh. It forms part of the adductor muscle group together with adductor longus, adductor brevis, adductor magnus and pectineus muscles. Gracilis is the most superficial hip adductor, overlying the remaining four.