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Topic: Phorusrhacoid

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	Phorusrhacoid - Wikipedia, the free encyclopedia
		Phorusrhacoids were large carnivorous flightless birds that were the dominant predators in South America during the Cenozoic, 62-2.5 million years ago.
		Phorusrhacoids are also known as Terror Birds, due to the fact that the large species were top-level predators and among the most fearsome carnivores of their time.
		Alvarenga and Höfling do not include the Ameghinornithinae and Aenigmavis sapea from Europe in the phorusrhacoids; they conclude that the former are close relatives, while the latter is of uncertain affiliation.
	www.wikipedia.org /wiki/Phorusrhacoid (334 words)

	Phorusrhacoid (Site not responding. Last check: 2007-10-03)
		Phorusrhacoids took over the niche vacated by the small, bipedal dinosaurs called coelurosaurs.
		Phorusrhacoids were able to achieve dominance in South America because that continent was isolated for most of the Cenozoic.
		When the Panamanian land bridge arose 2.5 million years ago, fauna from North and South America were able to intermingle (the Great American Interchange).
	hoopermuseum.earthsci.carleton.ca /flightless/phorus.htm (304 words)

	Re: Overrated Dinosaurs
		The phorusrhacoids (South American terror birds) do appear at first glance to have gone extinct with the invasion of placental mammals, along with a wide variety of other (marsupial and placental) South American megafauna.
		However, at least one species of phorusrhacoid actually expanded its range across the Panamanian land bridge, and for a while were hunting North American placentals and sucessfully competing with placental bears, cats, and dogs.
		The actual extinction of Diatryma may well have been due to direct competition with mammalian carnivores, but this would be a hard point to prove, the actual fossil record does not offer a smoking gun on this issue.
	www.usenet.com /newsgroups/rec.arts.sf.science/msg03731.html (572 words)

	[No title] (Site not responding. Last check: 2007-10-03)
		After an examination of the specimens, Dr. Chandler determined that the fossil is the earliest record for turacos, which are native to sub Saharan Africa.
		Chandler had previously hypothesized that turacos, along with a group of birds from South America called seriemas, share a common ancestor with phorusrhacoids.
		The most noted discoveries from the site are part of a humerus and a hand bone from a species of phorsrhacoid known as Titanis walleri, which has been featured in Discover magazine and on the Discovery Channel and The Learning Channel.
	www.faculty.de.gcsu.edu /~wglowka/Tomlinson.html (328 words)

	Encyclopedia: Phorusrhacoid
		List of Non_Government schools in New South Wales
		Land bridge is essentially a historical term; it refers to dry land exposed during periods of low sea level (see regression), connecting what are now separate continents or islands.
		Phorusrhacos was a genus of giant flightless predatory birds that lived in Brazil and Patagonia, containing a single species accepted to date: Phorusrhacos longissimus.
	www.nationmaster.com /encyclopedia/Phorusrhacoid (594 words)

	Course Lecture Notes - March 1
		Up until 2.5 million years ago, when North America and South America connected via the Panamanian land bridge, one of the dominant predators in South America was a group of birds known as phorusrhacoids.
		- One theory suggests that phorusrhacoids became extinct with the invasion of carnivorous mammals from North America into South America
		Both the Diatryma and phorusrhacoids are in the order Gruiformes, which also includes the family that is most likely to evolve flightlessness: Rallidae
	web.aurora.edu /~djhorn/evolutionofbirds/archaeopteryx.march8.html (1039 words)

	Thunderlizard - news (Site not responding. Last check: 2007-10-03)
		More illustrations from Roar magazine, the BBC's prehistoric title for kids, can be found on the
		A new portfolio piece featuring Wolverine grappling with a Phorusrhacoid (giant terror bird) can be found on the
		It was produced for the 2002 Bristol Comic Convention, which I attended in June.
	thunderlizard.gn.apc.org /news.html (558 words)

	Survival of Bipeds : Paleo : Active Low-Carber Forums
		The terror birds could run their prey down.
		The NA phorusrhacoid seems to have been present in the SE USA
		> The NA phorusrhacoid seems to have been present in the SE > USA about 1.5 MYr ago (1 MYr after the interchange) and may
	forum.lowcarber.org /t65039.html (14009 words)

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