Featured Research

from universities, journals, and other organizations

Giant Trilobites And Trilobite Clusters From The Ordovician Of Portugal

Date:
May 5, 2009
Source:
The Geological Society of America
Summary:
Fossils from 465 million years ago recently discovered in Portugal have revealed the huge size reached by trilobites, the most diverse group of extinct marine arthropods. Geologists describe the largest trilobites ever found, which, in life, would have reached up to 90 centimeters (35 inches).

Fossils from 465 million years ago recently discovered in Portugal have revealed the huge size reached by trilobites, the most diverse group of extinct marine arthropods. Gutierrez-Marco et al. describe the largest trilobites ever found, which, in life, would have reached up to 90 centimeters (35 inches).

Related Articles


This remarkable record suggests evidence of polar gigantism in an area of Gondwana close to the South Pole during the Ordovician. The Portuguese trilobites also show an astounding array of behavioral clustering -- with some patches reaching groups of over a thousand specimens -- revealing a very diverse social conduct, including hiding from predators and sexual aggregations.

This could have played a major role in the undisputed success of this group through the Paleozoic Era. The original discovery site and its fossils are one of the main attractions of the recently established Arouca Geopark in northern Portugal.

This study, "Giant trilobites and trilobite clusters from the Ordovician of Portugal," by Juan C. Gutierrez-Marco et. al. was published in the May 2009 edition of Geology.


Story Source:

The above story is based on materials provided by The Geological Society of America. Note: Materials may be edited for content and length.


Cite This Page:

The Geological Society of America. "Giant Trilobites And Trilobite Clusters From The Ordovician Of Portugal." ScienceDaily. ScienceDaily, 5 May 2009. <www.sciencedaily.com/releases/2009/05/090505072714.htm>.
The Geological Society of America. (2009, May 5). Giant Trilobites And Trilobite Clusters From The Ordovician Of Portugal. ScienceDaily. Retrieved April 21, 2015 from www.sciencedaily.com/releases/2009/05/090505072714.htm
The Geological Society of America. "Giant Trilobites And Trilobite Clusters From The Ordovician Of Portugal." ScienceDaily. www.sciencedaily.com/releases/2009/05/090505072714.htm (accessed April 21, 2015).

Share This


More From ScienceDaily



More Fossils & Ruins News

Tuesday, April 21, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Cleaners Find Ancient Peru Mummy

Cleaners Find Ancient Peru Mummy

Reuters - News Video Online (Apr. 15, 2015) Cleaners in Peru stumble across an ancient mummy mysteriously dumped near rubbish in the pre-Incan city of Chan Chan. Rough cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
388 Unidentified Pearl Harbor Victims To Be Exhumed, ID'd

388 Unidentified Pearl Harbor Victims To Be Exhumed, ID'd

Newsy (Apr. 15, 2015) The Department of Defense is exhuming the unidentified remains of 388 servicemen who died on board the USS Oklahoma in 1941. Video provided by Newsy
Powered by NewsLook.com
Manuscript by Nazi Code Breaker Alan Turing Sells for $1 Million

Manuscript by Nazi Code Breaker Alan Turing Sells for $1 Million

Reuters - Light News Video Online (Apr. 13, 2015) Alan Turing&apos;s notebook containing the foundations of mathematics and computer science sells at auction for $1,025,000 (USD). Roselle Chen reports. Video provided by Reuters
Powered by NewsLook.com
Replica Cave Showcases Artistry of Stone Age Man

Replica Cave Showcases Artistry of Stone Age Man

AFP (Apr. 10, 2015) A replica of a cave in the Ardeche, in southern France will be opened Friday to give visitors the chance to see cave paintings produced around 36,000 years ago. Duration: 01:05 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins