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 resembles that of Ichthyostega, an indication Ymeria may have resembled this genus in the post-cranial skeleton.
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 resembles that of Ichthyostega, an indication Ymeria may have resembled this genus in the post-cranial skeleton.
== Discovery == Ymeria is primarily known from a partial holotype skull including the lower jaws and palate, as well as impressions of the shoulder girdle. The holotype comes from the southern slope of Mt. Celsius on Ymer Island in northeast Greenland. Fossils of Devonian tetrapods like Ichthyostega have been known from Ymer Island since 1929. The skull of Ymeria found in 1947 by a team of paleontologists from Sweden and Denmark. It came from a talus slope or pile of rock fragments at the base of Mount Celsius, encased in a pale red sandstone. The fossil's origin on the mountain has not been identified. There are four formations preserved at Mt. Celsius, all belonging to the larger Celsius Bjerg Group. Since the skull cannot be traced to any one of these formations, its exact age is uncertain.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).