Cucumericrus

Cucumericrus; Temporal range: Miaolingian–Middle Cambrian PreꞒ Ꞓ O S D C P T J K Pg N
	Trunk appengae of Cucumericrus decoratus
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Dinocaridida
Order:	?†Radiodonta
Genus:	Cucumericrus; Hou, Bergstrom & Ahlberg, 1995
Species:	C. decoratus; Hou, Bergstrom & Ahlberg, 1995

Cucumericrus decoratus is a species of putative radiodont known from a few poorly preserved specimens.^[1]^[2] Only fragments of trunk cuticle and corresponded appendages had been revealed, while important radiodont features such as frontal appendages are unknown in this species.^[2]^[3] The trunk cuticle possess irregular wrinkles^[1] and may had been soft in life.^[4] Each of the trunk appendage compose of a dorsal flap-like element and a ventral stubby leg with unknown distal region,^[1] structurally comparable to the trunk appendages of gill lobopodians (dorsal flaps and ventral lobopods) and euarthropod biramous appendages (flap-like exopod and limb-like endopod).^[3]^[5] The legs have been interpreted as somewhere between annulated lobopod legs and segmented arthropod legs.^[4]^[5]

References

^ ^a ^b ^c Xian‐Guang, Hou; Bergström, Jan; Ahlberg, Per (1995-09-01). "Anomalocaris and other large animals in the lower Cambrian Chengjiang fauna of southwest China". GFF. 117 (3): 163–183. doi:10.1080/11035899509546213. ISSN 1103-5897.
^ ^a ^b Allison C. Daley & Graham E. Budd (2010). "New anomalocaridid appendages from the Burgess Shale, Canada". Palaeontology. 53 (4): 721–738. doi:10.1111/j.1475-4983.2010.00955.x.
^ ^a ^b Xian-Guang, Hou; Siveter, David J.; Siveter, Derek J.; Aldridge, Richard J.; Pei-Yun, Cong; Gabbott, Sarah E.; Xiao-Ya, Ma; Purnell, Mark A.; Williams, Mark (2017-04-24). The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life. John Wiley & Sons. ISBN 978-1-118-89638-9.
^ ^a ^b Jan Bergström & Hou Xian-Guang (2003). "Arthropod origins" (PDF). Bulletin of Geosciences. 78 (4): 323–334.
^ ^a ^b Van Roy, Peter; Daley, Allison C.; Briggs, Derek E. G. (2015). "Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps". Nature. 522 (7554): 77–80. Bibcode:2015Natur.522...77V. doi:10.1038/nature14256. ISSN 1476-4687. PMID 25762145. S2CID 205242881.

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[:0-1] Xian‐Guang, Hou; Bergström, Jan; Ahlberg, Per (1995-09-01). "Anomalocaris and other large animals in the lower Cambrian Chengjiang fauna of southwest China". GFF. 117 (3): 163–183. doi:10.1080/11035899509546213. ISSN 1103-5897.

[Daley2010-2] Allison C. Daley & Graham E. Budd (2010). "New anomalocaridid appendages from the Burgess Shale, Canada". Palaeontology. 53 (4): 721–738. doi:10.1111/j.1475-4983.2010.00955.x.

[:1-3] Xian-Guang, Hou; Siveter, David J.; Siveter, Derek J.; Aldridge, Richard J.; Pei-Yun, Cong; Gabbott, Sarah E.; Xiao-Ya, Ma; Purnell, Mark A.; Williams, Mark (2017-04-24). The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life. John Wiley & Sons. ISBN 978-1-118-89638-9.

[:2-4] Jan Bergström & Hou Xian-Guang (2003). "Arthropod origins" (PDF). Bulletin of Geosciences. 78 (4): 323–334.

[:3-5] Van Roy, Peter; Daley, Allison C.; Briggs, Derek E. G. (2015). "Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps". Nature. 522 (7554): 77–80. Bibcode:2015Natur.522...77V. doi:10.1038/nature14256. ISSN 1476-4687. PMID 25762145. S2CID 205242881.

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