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Latest Annelid Stories

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2010-03-25 10:28:25

In the '80s, Spanish researchers found the first fossils of Cloudina in Spain, a small fossil of tubular appearance and one of the first animals that developed an external skeleton between 550 and 543 million years ago. Now paleontologists from the University of Extremadura have discovered a new species, Cloudina carinata, the fossil of which has preserved its tridimensional shape. "Cloudina carinata is characterized by its elaborate ornamentation and complexity of the shells and tube that...

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2009-09-10 06:02:38

The large group of segmented worms known as annelids, which includes earthworms, leeches and bristle worms, evolved millions of years ago and can be found in every corner of the world. Although annelids are one of the most abundant animal groups on the planet, scientists have struggled to understand how the different species of this biologically diverse group relate to each other in terms of their evolutionary history. Now a team of scientists from Yale University and Dartmouth College has...

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2008-01-09 15:35:35

New Haven, Conn. -- Discovery of an exceptional fossil specimen in southeastern Morocco that preserves evidence of the animal's soft tissues has solved a paleontological puzzle about the origins of an extinct group of bizarre slug-like animals with rows of mineralized armor plates on their backs, according to a paper in Nature. While evolution has produced great diversity in the body designs of animals, over the course of history several highly distinct groups, such as trilobites and...


Latest Annelid Reference Libraries

Nightcrawler, Lumbricus terrestris
2014-01-12 00:00:00

The nightcrawler (Lumbricus terrestris), also known as the lob worm or the common earthworm in Britain and the dew worm in Canada, is a species of earthworm that is classified within the Annelida phylum. It is native to Europe, but has been introduced into other areas around the world. Although the species is not as abundant as other worms in its range, it is a widely known species in gardens of temperate habitats, where it moves about on the surface of the soil. The nightcrawler can reach...

Red Earthworm, Lumbricus rubellus
2014-01-12 00:00:00

The red earthworm (Lumbricus rubellus) is a species of earthworm that is classified within the Annelida phylum. It is native to the British Isles and Europe, but has traveled across the world to areas with appropriate habitats. This worm prefers to reside in soil that contains high organic matter content, like feces, but it needs loose soils in order to move about and feed. The sustainability of a habitat depends upon factors such as the PH balance of the soil, moisture levels, temperature,...

Common Clam Worm, Alitta succinea
2014-01-12 00:00:00

The Common Clam Worm (Alitta succinea) is a species of marine annelid of the Nereididae family of ragworms or sandworms. It is found throughout the Northwest Atlantic Ocean, especially in the Gulf of Maine; it is also found off the coast of South Africa. This species can reach a length of 6 inches, but most specimens are smaller. It is brown in color at the rear, and reddish-brown on the rest of the body. The head has four eyes, two sensory feelers and numerous tentacles. The body consists...

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Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'