Arthropod and Marrella

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Difference between Arthropod and Marrella

Arthropod vs. Marrella

An arthropod (from Greek ἄρθρον arthron, "joint" and πούς pous, "foot") is an invertebrate animal having an exoskeleton (external skeleton), a segmented body, and paired jointed appendages. Marrella splendens is an extinct arthropod known from the middle Cambrian Burgess Shale of British Columbia.

Animal

Animals are multicellular eukaryotic organisms that form the biological kingdom Animalia.

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Antenna (biology)

Antennae (singular: antenna), sometimes referred to as "feelers," are paired appendages used for sensing in arthropods.

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Burgess Shale

The Burgess Shale is a fossil-bearing deposit exposed in the Canadian Rockies of British Columbia, Canada.

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Cambrian

The Cambrian Period was the first geological period of the Paleozoic Era, and of the Phanerozoic Eon.

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Chelicerata

The subphylum Chelicerata (New Latin, from French chélicère, from Greek khēlē "claw, chela" and kéras "horn") constitutes one of the major subdivisions of the phylum Arthropoda.

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Columbia University Press

Columbia University Press is a university press based in New York City, and affiliated with Columbia University.

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Crustacean

Crustaceans (Crustacea) form a large, diverse arthropod taxon which includes such familiar animals as crabs, lobsters, crayfish, shrimp, krill, woodlice, and barnacles.

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Devonian

The Devonian is a geologic period and system of the Paleozoic, spanning 60 million years from the end of the Silurian, million years ago (Mya), to the beginning of the Carboniferous, Mya.

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Geological Survey of Canada

The Geological Survey of Canada (GSC; Commission géologique du Canada (CGC)) is a Canadian federal government agency responsible for performing geological surveys of the country, developing Canada's natural resources and protecting the environment.

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Gill

A gill is a respiratory organ found in many aquatic organisms that extracts dissolved oxygen from water and excretes carbon dioxide.

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Marrellomorph

Marrellomorphs are a group of arthropods known from the Cambrian to the Early Devonian.

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Nature (journal)

Nature is a British multidisciplinary scientific journal, first published on 4 November 1869.

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Opabinia

Opabinia regalis is an extinct, stem group arthropod found in the Middle Cambrian Burgess Shale Lagerstätte of British Columbia, Canada.

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Telson

The telson is the posterior-most division of the body of an arthropod.

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Thorax

The thorax or chest (from the Greek θώραξ thorax "breastplate, cuirass, corslet" via thorax) is a part of the anatomy of humans and various other animals located between the neck and the abdomen.

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Trilobite

Trilobites (meaning "three lobes") are a fossil group of extinct marine arachnomorph arthropods that form the class Trilobita.

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