Discover two marine beings who cannot classify them

2014/09/08 Galarraga Aiestaran, Ana - Elhuyar Zientzia Iturria: Elhuyar aldizkaria

• Biologia
• Eboluzioa

In fact, in 1986 he collected both beings, at a depth of between 400 and 1,000 meters. In trying to identify them, they realized that they were not within any family that is known today. For example, although they resemble the species of the Cnidaria and Ctnophora filums, among which are corals, jellyfish, etc., they present the characteristics.

Researchers have stressed that in the last 15-20 years only something similar has occurred on two or three occasions, that is, finding an unclassifiable being. For the classification of these two species a new family has been created, Dendrogrammatidae, whose study has been published in the journal PLOS ONE.

In the article, in addition to describing both species, it has been indicated that they may be related to some medusoids that lived in the Ediacara period, in which the fauna of the time was lost 500 million years ago. They say that in evolution they are previous to the group of Bilatería, but that to understand the evolutionary history we should know better some branches already settled in the phylogenetic tree.