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Yanliaomyzon
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Yanliaomyzon
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- the content below is remote from Wikipedia
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{{Short description|Extinct genus of predatory lampreys}}{{Automatic taxobox- the content below is remote from Wikipedia
- it has been imported raw for GetWiki
Middle Jurassic {{fossilrange>Callovian}}| image = Yanliaomyzon.png| image_caption = Fossils and life restorations of Yanliaomyzon occisor (a-e) and Yanliaomyzon ingensdentes (f-h)| taxon = Yanliaomyzon| authority = Wu, Janvier & Zhang, 2023| type_species = | subdivision_ranks = Species| subdivision = *â Yanliaomyzon occisor Wu, Janvier & Zhang, 2023 (type)
Description(File:Yanliaomyzon Size Comparison.svg|left|thumb|Size comparison)The species Y. occisor has a body length of {{convert|64|cm}}, which would make it the largest extinct fossil lamprey discovered. Both members of this genus resemble the modern pouched lamprey (Geotria australis). Yanliaomyzon bears a toothed oral disc that is much more similar to those of modern lampreys than those of Paleozoic lampreys. The two species are distinguished by differences in the anatomy of the toothed oral disc, as well as that the tail occupies around 40% of the body length in Yanliaomyzon ingensdentes but less than 28% of the total body length in Y. occisor.EcologyYanliaomyzon is thought to have consumed flesh, similar to some modern lampreys. Based on its similarities to Mesomyzon, Yanliaomyzon likely had a three phase life cycle with ammocoete larvae, though no juvenile specimens are known. Both species were found in freshwater deposits, as is typical of modern lampreys. The relatively large body size suggests that the species were anadromous, migrating from the sea into freshwater to spawn.Taxonomy(File:Petromyzontiformes phylogeny.png|thumb|Phylogenetic analysis conducted in the study)Yanliaomyzon was found to be the closest known relative of modern lampreys (though not closely related to any specific living lamprey group), with the younger Mesomyzon from the Early Cretaceous of the same region found to be more basal.References{{Reflist}}{{Taxonbar|from=Q123330385}} |
- content above as imported from Wikipedia
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- time: 11:44pm EDT - Tue, May 21 2024
- "Yanliaomyzon" does not exist on GetWiki (yet)
- time: 11:44pm EDT - Tue, May 21 2024
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