December 8, 2021

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The “penile worm” who lived as a monk at sea 500 million years ago

The crustaceans alone did not follow the monk’s way of life over time. Worms adopted this ecology as early as 500 million years ago.

Live happily, live in hiding The proverb says. If it had only been created by humans, it would seem that some animals have followed this way of life for much longer than expected. Ancient researchers. Hermit is crabs மட்டி Sailors are well known for staying in empty mollusk shells Gastropots And change “homes” as they grow. The smooth back of their body fits perfectly Morphology The inside of these bombs, therefore, allow individuals to protect themselves from predators. Drying. According to Ancient researcher Martin Smith, of the University of Durham in England, is one of the teachers Published in Current Biology, The oldest traces of the monk’s life in the register Archeology Until then it was about 170 million years ago. In this recent study, the authors point to the fact that other creatures had the same life cycle as the monk crabs.

These systems belong to Priapulide, From Sea worms Its shape is reminiscent of one Penis Human, it inspired the name of the group. The authors of the study describe the fossil remains of these worms for incredible protection.

These creatures belong to the genus Priapulidae, sea worms, and their shape resembles that of a human penis.

Most fossils are actually formed by bones or teeth because the tissues that make them up are highly mineralized and resist time better. In rare deposits, the conditions of tissue burial and preservation make it possible to preserve the seal. Archeology Soft tissue from a specimen. This is the case in Guangzhou, China, a site dated about 500 million years ago. This period corresponds to the Cambrian (-541 to -485.4 million years ago).Origin First Ecosystems Reveals a complex file structure and is dominated by animals, an event Explosive Cambrian.

An amazing ecology

The soft tissue prints of four such “penile worms” Eximipriapulus Have been found in conjunction with shells in shape Cone, The authors believe that it belongs to the hyoliths, Invertebrates Sailors for classification Phylogenetic Still uncertain but it died out 250 million years ago.

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Although several blank hyaline shells were found at the site, no priapolite seal was found without the shell. Dr. Smith also explains that all four worm specimens of interest exhibited similar positions and orientations in the hyolithic tiles. This allows the authors to assume that these sea worms have ecosystems similar to those of the hermit crabs, which is a surprising hypothesis as it suggests that the complex ecology was formed by animals as soon as the first complex animal forms appeared.

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