Radiodonta
Radiodonta is an extinct order of ancient arthropods that was successful during the Cambrian period. They can be called radiodonts[1] and radiodontans[2] along with other names.
| Radiodonta | |
|---|---|
| |
| Some radiodonts (Amplectobelua symbrachiata, Anomalocaris canadensis, Aegirocassis benmoulai, Peytoia nathorsti, Lyrarapax unguispinus, Cambroraster falcatus, and Hurdia victoria) | |
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
| Class: | |
| Order: | †Radiodonta
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Radiodonts are identified by distinct appendages on their faces, which are diverse and can do a lot of things. They were some of the earliest top predators, such as Anomalocaris, but some others, such as Aegirocassis were filter feeders, eating by filtering food out of the water around them.[3]
Radiodonta Media
Size estimation and comparison of radiodont species known by nearly complete specimens
Oral cones of various radiodonts
Head sclerite complexes of various radiodonts
Digestive system of a radiodont.
Various interpretations of radiodont brain. A: after Cong et al. 2014, B: after Moysiuk & Caron 2022
A reconstruction of Ottoia.
An Oroperipatus species found in Yasuni National Park, Ecuador
SEM image of Milnesium tardigradum in active state - journal.pone.0045682.g001-2
20210000 Lobopodia lobopodians lobopods
20191217 Siberiida Siberion Megadictyon Jianshanopodia
Video animation of Cambroraster falcatus, showcasing the movement of the trunk flaps
References
- ↑ Hou, Xian-Guang (November 2018). "New radiodonts with gnathobase-like structures from the Cambrian Chengjiang biota and implications for the systematics of Radiodonta". Papers in Palaeontology. 4 (4): 605–621. doi:10.1002/spp2.1219. ISSN 2056-2802.
- ↑ Cong, Peiyun; Daley, Allison C.; Edgecombe, Gregory D.; Hou, Xianguang (2017-08-30). "The functional head of the Cambrian radiodontan (stem-group Euarthropoda) Amplectobelua symbrachiata". BMC evolutionary biology. 17 (1): 208. doi:10.1186/s12862-017-1049-1. ISSN 1471-2148. PMC 5577670. PMID 28854872.
- ↑ Van Roy, Peter; Daley, Allison C.; Briggs, Derek E. G. (June 2015). "Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps". Nature. 522 (7554): 77–80. doi:10.1038/nature14256. ISSN 1476-4687.