Quadratapora

Quadratapora; Temporal range: Cambrian Stage 2 PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
(unranked):	Panarthropoda
Phylum:	†"Lobopodia"
Class:	†Xenusia
Order:	†Archonychophora
Family:	†Eoconchariidae
Genus:	†Quadratapora
Species
	Q. zhenbaensis Hao and Shu, 1987 (type) ; Q. tenuiporatum (Bengtson, Matthews and Missarzhevsky, 1986 ;

Quadratapora is a genus of lobopodian known only from its biomineralized dorsal plates, which somewhat resemble those of Microdictyon. Its fossils date to the Tommotian, representing (perhaps along with Rhombocorniculum) the earliest record of lobopodians.

References

^ ^a ^b Zhang, X. -G.; Aldridge, R. J. (2007). "Development and Diversification of Trunk Plates of the Lower Cambrian Lobopodians". Palaeontology. 50 (2): 401–415. Bibcode:2007Palgy..50..401Z. doi:10.1111/j.1475-4983.2006.00634.x.
^ Caron, J. -B.; Smith, M. R.; Harvey, T. H. P. (2013). "Beyond the Burgess Shale: Cambrian microfossils track the rise and fall of hallucigeniid lobopodians". Proceedings of the Royal Society B: Biological Sciences. 280 (1767): 20131613. doi:10.1098/rspb.2013.1613. PMC 3735267. PMID 23902914.

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[Zhang2007-1] Zhang, X. -G.; Aldridge, R. J. (2007). "Development and Diversification of Trunk Plates of the Lower Cambrian Lobopodians". Palaeontology. 50 (2): 401–415. Bibcode:2007Palgy..50..401Z. doi:10.1111/j.1475-4983.2006.00634.x.

[Caron2013-2] Caron, J. -B.; Smith, M. R.; Harvey, T. H. P. (2013). "Beyond the Burgess Shale: Cambrian microfossils track the rise and fall of hallucigeniid lobopodians". Proceedings of the Royal Society B: Biological Sciences. 280 (1767): 20131613. doi:10.1098/rspb.2013.1613. PMC 3735267. PMID 23902914.