relation: https://khub.utp.edu.my/scholars/10620/ title: 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 creator: Gámez Vintaned, J.A. creator: Zhuravlev, A.Y. description: Pates et al. (2017) and Pates and Daley (2017) reinterpreted a number of presumable xenusians (lobopodians) and described some new fossils from various Cambrian Lagerstätten as radiodontan (anomalocaridid) frontal appendages. The authors suggested that some features including overall length of a specimen, a number of tentative podomeres, a number of ventral blades (spines) and dorsal spines, their morphology, and an angle between the dorsal and ventral surfaces (θ) of a specimen provide enough information for a fairly good morphological description and a relevant systematic interpretation of stem group ecdysozoans. The case of xenusian Mureropodia apae from the lower Cambrian Valdemiedes Formation of Murero, northeastern Spain (Gámez Vintaned et al. 2011), which Pates and Daley (2017) identified as radiodontan Caryosyntrips cf. camurus, does not verify a plausibility of such a reductive approach. Copyright © 2018 J.A. Gámez Vintaned et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License (for details please see http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. publisher: Instytut Paleobiologii PAN date: 2018 type: Article type: PeerReviewed identifier: Gámez Vintaned, J.A. and Zhuravlev, A.Y. (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). pp. 103-104. ISSN 05677920 relation: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089094088&doi=10.4202%2fapp.00435.2017&partnerID=40&md5=de8bf442e1526e35f4861b9d0a13d361 relation: 10.4202/app.00435.2017 identifier: 10.4202/app.00435.2017