Ymeria
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Ymeria is an extinct genus of early stem tetrapod from the Devonian of Greenland. Of the two other genera of stem tetrapods from Greenland, Acanthostega and Ichthyostega, Ymeria is most closely relate
Ymeria
Eucritta 1DB white background
Ichthyostega
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Ichthyostega, from Ancient Greek ἰχθύς, meaning "fish", and στέγη, meaning "roof", is an extinct genus of limbed tetrapodomorphs from the Late Devonian of what is now Greenland. It was among the earli
Ymeria
…is an extinct genus of early stem tetrapod from the Devonian of Greenland. Of the two other genera of stem tetrapods from Greenland, Acanthostega and Ichthyostega, Ymeria is most closely related to Ichthyostega, though the single known specimen is smaller, the skull about 10 cm in length. A single interclavicle…
Skeleton of Ichthyostega
Skull A.199, Zoological Museum of Copenhagen
Tail with fin rays, counterpart of specimen A.69
Simplified phylogeny of the fish–tetrapod transition.