Fossils: Coccoderma Coelacanth from Solnhofen Lagerstätte
Posted by Ricardo Marcenaro | Posted in Fossils: Coccoderma Coelacanth from Solnhofen Lagerstätte | Posted on 4:18
Coccoderma Coelacanth from Solnhofen Lagerstätte
http://www.fossilmuseum.net/Fossil_Sites/solnhofen/coccoderma/coccoderma.htm
Coccoderma nudum
Class Sarcopterygii, Subclass, Coelacanthimorpha, Order Coelacanthiformes, Family Family Laugiidae
Geological Time: Late Jurassic, Kimmeridgian Stage
Size:
Fossil Site: Solnhofen Limestone, Malm Zeta 2, Eichstatt, Germany
Description: The preservation of this Coelacanth is exquisite. Coming from the world famous Solnhofen Limestone, it was formed in deposits that were a warm Jurassic salt water lagoon. Solnhofen flora and fauna are highly diverse, including soft-bodied organisms and one of the world's most famous fossils, Archaeopteryx, and early bird.
The Coelacanths appear in the early Devonian fossil record, and ostensibly became widely dispersed in the late Devonian and Carboniferous marine environments. They were once believed to have gone extinct at the end of the Cretaceous, until the first Latimeria specimen was found off the east coast of South Africa in 1938. As a taxon that disappears from part of the fossil record and reappears, Coelacanths are considered a Lazarus taxon. Since 1938, Latimeria has been found in the Comoros, Kenya, Madagascar, Mozambique, and Tanzania; many consider a Coelacanths to be living fossils. The most likely reason for the gap in the fossil record from the end Cretaceous on is that Coelacanths disappeared from shallow waters. Fossil discovery and recovery in deep waters is next to impossible.
Coelacanths are lobe-finned fish having pectoral and anal fins on fleshy stalks supported by bones, and the tail or caudal fin diphycercal (divided into three lobes), the middle one of which also includes a continuation of the notochord.
Coccoderma nudum
Class Sarcopterygii, Subclass, Coelacanthimorpha, Order Coelacanthiformes, Family Family Laugiidae
Geological Time: Late Jurassic, Kimmeridgian Stage
Size:
Fossil Site: Solnhofen Limestone, Malm Zeta 2, Eichstatt, Germany
Description: The preservation of this Coelacanth is exquisite. Coming from the world famous Solnhofen Limestone, it was formed in deposits that were a warm Jurassic salt water lagoon. Solnhofen flora and fauna are highly diverse, including soft-bodied organisms and one of the world's most famous fossils, Archaeopteryx, and early bird.
The Coelacanths appear in the early Devonian fossil record, and ostensibly became widely dispersed in the late Devonian and Carboniferous marine environments. They were once believed to have gone extinct at the end of the Cretaceous, until the first Latimeria specimen was found off the east coast of South Africa in 1938. As a taxon that disappears from part of the fossil record and reappears, Coelacanths are considered a Lazarus taxon. Since 1938, Latimeria has been found in the Comoros, Kenya, Madagascar, Mozambique, and Tanzania; many consider a Coelacanths to be living fossils. The most likely reason for the gap in the fossil record from the end Cretaceous on is that Coelacanths disappeared from shallow waters. Fossil discovery and recovery in deep waters is next to impossible.
Coelacanths are lobe-finned fish having pectoral and anal fins on fleshy stalks supported by bones, and the tail or caudal fin diphycercal (divided into three lobes), the middle one of which also includes a continuation of the notochord.
Ricardo Marcenaro
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Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.
Gracias :)
Sculptures – Esculturas
http://ricardomarcenaro.ning.com/
Ricardo M Marcenaro - Facebook
Blogs in operation of The Solitary Dog:
Solitary Dog Sculptor:
http://byricardomarcenaro.blogspot.com
Solitary Dog Sculptor I:
http://byricardomarcenaroi.blogspot.com
Para:
comunicarse conmigo,
enviar materiales para publicar,
propuestas comerciales:
marcenaroescultor@gmail.com
For:
contact me,
submit materials for publication,
commercial proposals:
marcenaroescultor@gmail.com
Diario La Nación
Argentina
Cuenta Comentarista en el Foro:
Capiscum
My blogs are an open house to all cultures, religions and countries. Be a follower if you like it, with this action you are building a new culture of tolerance, open mind and heart for peace, love and human respect.
Thanks :)
Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.
Gracias :)
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