Squamacula is an extinct artiopodan arthropod from the Cambrian Series 2. The type species S. clypeata was described in 1997 from the Chengjiang biota of Yunnan, China. At the time of description there were only two known specimens of S. clypeata, but now there are at least six known specimens.[2] In 2012 a second species S. buckorum was described from the Emu Bay Shale of Australia.[3]
^Hou, Xianguang; Bergström, Jan (1997). Arthropods of the Lower Cambrian Chengjiang fauna, southwest China. Bergström. Oslo: Scandinavian University Press. ISBN 8200376931. OCLC 38305908.[page needed]
^The Cambrian fossils of Chengjiang, China : the flowering of early animal life. Hou, Xianguang. (Second ed.). Chichester, West Sussex. 8 March 2017. ISBN 9781118896310. OCLC 970396735.{{cite book}}: CS1 maint: location missing publisher (link) CS1 maint: others (link)
^Paterson, John R.; García-Bellido, Diego C.; Edgecombe, Gregory D. (March 2012). "New artiopodan arthropods from the early Cambrian Emu Bay Shale Konservat-Lagerstätte of South Australia". Journal of Paleontology. 86 (2): 340–357. Bibcode:2012JPal...86..340P. doi:10.1666/11-077.1. ISSN 0022-3360. S2CID 87520649.
Squamacula is an extinct artiopodan arthropod from the Cambrian Series 2. The type species S. clypeata was described in 1997 from the Chengjiang biota...
aglaspidids, xenopods and cheloniellids. There are some taxa, such as Squamacula and the members of "Protosutura", which often are placed near the base...
Sirius Passet site in Greenland. It is thought to be a close relative of Squamacula, and is possibly one of the most basal members of Artiopoda. Thulaspsis...
preservation is lower. A few genera of non-biomineralized arthropods, among them Squamacula, Kangacaris, and the megacheiran Tanglangia, are known only from the Emu...
somewhat older. A few genera of non-biomineralized arthropods, among them Squamacula, Kangacaris, and the megacheiran Tanglangia, are known only from the Emu...
equivocal. Thulaspis T. tholops A basal artiopodan closely related to Squamacula. Siriocaris S. trollae A possible member of Lamellipedia Isoxys I. volucris...
studies. Hou and Bergstrom suggested a close relationship to the genus Squamacula. However, after a redescription of both Retifacies and Pygmaclypeatus...
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