Ichthyostega was an early tetrapod genus that lived at the end of the Upper Devonian period, 374 - 359 million years ago. It was one of the first tetrapods in the fossil record. Ichthyostega possessed lungs and limbs that helped it navigate through shallow water in swamps. Though undoubtedly of amphibian build and habit, it is not considered a true member of the group in a narrow sense, as the first true amphibians appeared in the Carboniferous period. Until finds of the other early tetrapods and closely related fishes in the late 20th century, Ichthyostega stood alone as the transitional fossil between fish and tetrapods, combining a fishlike tail and gills with an amphibian skull and limbs.
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| - Ichthyostega was an early tetrapod genus that lived at the end of the Upper Devonian period, 374 - 359 million years ago. It was one of the first tetrapods in the fossil record. Ichthyostega possessed lungs and limbs that helped it navigate through shallow water in swamps. Though undoubtedly of amphibian build and habit, it is not considered a true member of the group in a narrow sense, as the first true amphibians appeared in the Carboniferous period. Until finds of the other early tetrapods and closely related fishes in the late 20th century, Ichthyostega stood alone as the transitional fossil between fish and tetrapods, combining a fishlike tail and gills with an amphibian skull and limbs.
- In 1932 a scientist named Gunnar Save Soderbergh lead an espedition in Greenland to find fossils. He found over four species of a new kind of large amphibian, and named it Ichthyostega, or "fish roof", since the top of its head seemed to resemble that of a fish. Gunnar noticed that each species differed slightly in skull proportions, punctuation, and bone pattern.
- Ichthyostega (Greek: "fish roof") is an early tetrapod genus that lived in the Upper Devonian (Famennian) period, 367-362.5 million years ago. It was a labyrinthodont that represents an intermediate form between fish and amphibians. Ichthyostega possessed lungs and limbs that helped it navigate through shallow water in swamps. Though undoubtedly of amphibian build and habit, it is not considered a true member of the group in the narrow sense, as the first true amphibians appeared in the Carboniferous) period.
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| - (Säve-Söderbergh, 1932)
- Ichthyostega
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| - *I. stensioei
*I. watsoni
*I. eigili
*I. kochi
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| - Life restoration of Ichthyostega after Ahlberg, 2005.
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| - Jurassic Park Institute Artwork
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| - Ichthyostega was an early tetrapod genus that lived at the end of the Upper Devonian period, 374 - 359 million years ago. It was one of the first tetrapods in the fossil record. Ichthyostega possessed lungs and limbs that helped it navigate through shallow water in swamps. Though undoubtedly of amphibian build and habit, it is not considered a true member of the group in a narrow sense, as the first true amphibians appeared in the Carboniferous period. Until finds of the other early tetrapods and closely related fishes in the late 20th century, Ichthyostega stood alone as the transitional fossil between fish and tetrapods, combining a fishlike tail and gills with an amphibian skull and limbs.
- In 1932 a scientist named Gunnar Save Soderbergh lead an espedition in Greenland to find fossils. He found over four species of a new kind of large amphibian, and named it Ichthyostega, or "fish roof", since the top of its head seemed to resemble that of a fish. Gunnar noticed that each species differed slightly in skull proportions, punctuation, and bone pattern.
- Ichthyostega (Greek: "fish roof") is an early tetrapod genus that lived in the Upper Devonian (Famennian) period, 367-362.5 million years ago. It was a labyrinthodont that represents an intermediate form between fish and amphibians. Ichthyostega possessed lungs and limbs that helped it navigate through shallow water in swamps. Though undoubtedly of amphibian build and habit, it is not considered a true member of the group in the narrow sense, as the first true amphibians appeared in the Carboniferous) period.
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