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Mureropodia

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Mureropodia
Temporal range: Cambrian Series 2 PreꞒ Ꞓ O S D C P T J K Pg N
Digitally enhanced photograph of the fossil
Scientific classification
Kingdom: Animalia
Genus: Mureropodia
Species: M. apae
Binomial name
Mureropodia apae
Gámez et al., 2011

Mureropodia is an animal that existed in what is now the Valdemiedes Formation of Spain during the early Cambrian period. It was described by José Antonio Gámez Vintaned, Eladio Liñán and Andrey Yu. Zhuravlev in 2011, and the type and only species is M. apae.

The only specimen or holotype of M. apae (MPZ 2009/1241) was named and interpreted as an anterior section of a xenusiid lobopodian by Gámez et al. (2011). However, it was reinterpreted as a partial isolated frontal appendage of a member of the radiodont genus Caryosyntrips (labeled as Caryosyntrips cf. camurus) by Pates & Daley (2017). While the reinterpretation was criticized by Gámez Vintaned & Zhuravlev (2018), Pates et al. (2018) provided additional evidences that could reject the lobopodian affinities (and support for the radiodont affinities) of MPZ 2009/1241, such as the uncomparable proportion of "head/proboscis" (frontal appendage termination) and "lobopod" (endites or ventral spines) to other lobopodians, and the "antenna" and "claws" were also revealed to be artifacts instead of part of the specimen.

As of the late 2010s, most literatures did not agree on the lobopodian affinities of MPZ 2009/1241. For example, Lerosey-Aubril & Pates (2018) follow the interpretation of MPZ 2009/1241 as a radiodont, estimated it as a Caryosyntrips measured about 36.7 cm to 54 cm in life.

References

  1. ^ Vintaned, José Antonio Gámez; Liñán, Eladio; Zhuravlev, Andrey Yu (2011). "A New Early Cambrian Lobopod-Bearing Animal (Murero, Spain) and the Problem of the Ecdysozoan Early Diversification". In Pontarotti, Pierre (ed.). Evolutionary Biology – Concepts, Biodiversity, Macroevolution and Genome Evolution. pp. 193–219. doi:10.1007/978-3-642-20763-1_12. ISBN 978-3-642-20762-4.
  2. Stephen Pates; Allison C. Daley (2017). "Caryosyntrips: a radiodontan from the Cambrian of Spain, USA and Canada" (PDF). Papers in Palaeontology. 3 (3): 461–470. Bibcode:2017PPal....3..461P. doi:10.1002/spp2.1084. S2CID 135026011.
  3. José A. Gámez Vintaned; Andrey Y. Zhuravlev (2018). "Comment on "Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris" by Stephen Pates, Allison C. Daley, and Javier Ortega-Hernández". Acta Palaeontologica Polonica. 63 (1): 103–104. doi:10.4202/app.00335.2017 (inactive 1 November 2024).{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
  4. Stephen Pates; Allison C. Daley; Javier Ortega-Hernández (2018). "Reply to Comment on "Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is a frontal appendage of the radiodontan Stanleycaris" with the formal description of Stanleycaris". Acta Palaeontologica Polonica. 63 (1): 105–110. doi:10.4202/app.00443.2017.
  5. Ou, Qiang; Mayer, Georg (2018-09-20). "A Cambrian unarmoured lobopodian, † Lenisambulatrix humboldti gen. et sp. nov., compared with new material of † Diania cactiformis". Scientific Reports. 8 (1): 13667. Bibcode:2018NatSR...813667O. doi:10.1038/s41598-018-31499-y. ISSN 2045-2322. PMC 6147921. PMID 30237414.
  6. Lerosey-Aubril, Rudy; Pates, Stephen (2018-09-14). "New suspension-feeding radiodont suggests evolution of microplanktivory in Cambrian macronekton". Nature Communications. 9 (1): 3774. Bibcode:2018NatCo...9.3774L. doi:10.1038/s41467-018-06229-7. ISSN 2041-1723. PMC 6138677. PMID 30218075.
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