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Latest Transitional fossil Stories

307bcb1f76b6127e7b4da539067c62461
2008-10-16 12:45:00

Some 375 million years ago, a unique fish existed with features in its head that helped pave the way for vertebrate animals to live on land, scientists said on Wednesday. Now, new research is providing the first glimpse at the internal head skeleton of Tiktaalik roseae. The transition from aquatic to terrestrial lifestyle involved complex changes not only to appendages (fins to limbs) but also to the internal head skeleton, researchers report in the recent issue of the journal Nature....

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2008-10-06 11:30:00

The latest breakthrough in a 120 year-old debate on the evolution of the bird wing was published in the open-access journal PLoS ONE, October 3, by Alexander Vargas and colleagues at Yale University, the University of Wisconsin-Madison and Yale Peabody Museum of Natural History. Bird wings only have three fingers, having evolved from remote ancestors that, like humans and most reptiles, had five fingers. Biologists have typically used embryology to identify the evolutionary origin (homology)...

2008-08-03 03:00:06

By Bell, Michael A PALEONTOLOGY Variations on a Theme YOUR INNER FISH: A Journey into the 3.5-Billion-Year History of the Human Body. Neil Shubin. x + 229 pp. Pantheon Books, 2008. $24. Ernst Haeckel's punchy three- word slogan "Ontogeny recapitulates phylogeny" has earned a certain immortality-never mind that it's wrong. Each species does not, as Haeckel claimed, retrace its evolutionary history as it develops, with human embryos going through fish and reptile stages. But that's not to say...

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2008-07-11 00:15:00

A researcher from the University of Chicago said newly identified fish fossils discovered in several European museums might resolve a long-standing question about evolutionary theory. The 50 million-year-old fossils fill in a "missing link" in the evolution of flatfishes and explain one of nature's most extraordinary phenomena, namely how flatfish such as sole, flounder halibut developed the bizarre but useful trait of having both eyes on one side of their head. Even more extraordinary is the...

2008-07-11 09:00:18

By WILLIAM MULLEN By William Mullen Chicago Tribune CHICAGO Some dusty fossil fish spotted by a sharp-eyed University of Chicago doctoral student as he rummaged through forgotten corners of museum collections in Europe have solved a question that has long vexed scientists. The puzzling question was: How did flatfish, a bizarre, highly specialized group of bottom-feeding fish - sole, plaice, turbot, flounder and halibut among them - end up with both of their eyes on one side of their...

2008-07-10 09:00:00

By William Mullen, Chicago Tribune Jul. 10--Some dusty fish fossils spotted by a sharp-eyed University of Chicago doctoral student as he rummaged through forgotten corners of museum collections in Europe have answered a question that has long vexed scientists. The puzzling question was: How did flatfish, a bizarre, highly specialized group of bottom-feeding fish that are some of nature's most delicious creatures--sole, plaice, turbot, flounder and halibut among them--end up with both of...

2008-07-10 00:00:09

CHICAGO _ Some dusty fossil fish spotted by a sharp-eyed University of Chicago doctoral student as he rummaged through forgotten corners of museum collections in Europe have solved a question that has long vexed scientists. The puzzling question was: How did flatfish, a bizarre, highly specialized group of bottom-feeding fish that are some of nature's most delicious creatures _ sole, plaice, turbot, flounder and halibut among them _ end up with both of their eyes on one side of their faces?...

2008-07-02 06:00:18

At last, the missing link between sea creatures and land creatures has been found. Evolution has again proven itself to be scientifically sound and believable! But wait... In the same article proclaiming the significance of the fossil Ventastega curonica, there appears the statement that Ventastega is likely an evolutionary dead-end... Problematic dilemma? Not to the evolutionary mind. But that's not all. Ventastega is the most primitive of these transition animals, but there are older...

2008-06-26 09:00:00

Scientists believe the discovery of well-preserved fossils in Latvia may explain the evolutionary history of how our ancestors moved from water to land.  Swedish researchers have reconstructed parts of the animal, which had a fish-like body but a head that appears better suited to land than water. The four-legged fish, known as Ventastega curonica, would have looked similar to a small alligator, the scientists say, and may in part explain the process of evolution. Researchers Per...

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2008-06-26 00:10:00

The most primitive four-legged creature in the history of the Earth was recently uncovered. Scientists believe the discovery will help them understand the evolution link between fish and land animals. In a study published in Thursday's issue of the journal Nature, researchers report that the 365 million-year-old skull, shoulder and pelvis were found in Latvia. The water-dweller, known as Ventastega curonica, is likely an evolutionary dead-end, but the discovery does shed new light...


Latest Transitional fossil Reference Libraries

42_6e9e514e1334f1d4f015f1cc3dc3896d
2007-12-21 13:22:00

Hyracotherium (Hyracotherium leporine), was once considered to be the earliest known member of the horse family. Now, though, it is considered to be part of the perissodactyl family related to both horses and brontotheres. Hyracotherium was a dog-sized perissodactyl ungulate that lived in the Northern Hemisphere, with species ranging throughout Asia, Europe, and North America during the Early to Mid Eocene, about 60 to 45 million years ago. The first fossils of this animal were found in...

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Word of the Day
snash
  • To talk saucily.
  • Insolent, opprobrious language; impertinent abuse.
This word is Scots in origin and probably imitative.