Mollisonia

Mollisonia is a genus of epifaunal detritivorous arthropod. Species are known from the Cambrian Burgess Shale, Langston Formation and Wheeler Shale of North America, as well as the Chenjiang Biota of China.[1] Twenty-one specimens of Mollisonia are known from the Greater Phyllopod bed, where they comprise less than 0.1% of the community.[2] Remains attributed to the genus are also known from the Ordovician Fezouata Formation of Morocco and Greenland.[3] An observation published in 2019 suggests this genus is a basal chelicerate, closer to crown group Chelicerata than members of Habeliida. It is suggested to be closely related to Corcorania, Ecnomocaris and Thelxiope, together forming the clade Mollisoniida.[4]

Mollisonia
Temporal range: Cambrian Stage 3–Floian
Scientific classification
Kingdom:
Animalia
Phylum:
Arthropoda
Subphylum:
Chelicerata
Order:
Mollisoniida
Genus:
Mollisonia

Walcott, 1912
Type species
Mollisonia symmetrica
Walcott 1912
Other species
  • Mollisonia plenovenatrix Aria and Caron, 2019
  • Mollisonia gracilis Walcott, 1912
  • Mollisonia sinica Zhang et al., 2002
Synonyms

Houghtonites Raymond, 1931

References
  1. Zhang, Xingliang; Zhao, Yuanlong; Yang, Ruidong; Shu, Degan (November 2002). "The Burgess Shale arthropod Mollisonia ( M. sinica new species): new occurrence from the Middle Cambrian Kaili fauna of southwest China". Journal of Paleontology. 76 (6): 1106–1108. doi:10.1017/S0022336000057917. ISSN 0022-3360.
  2. Caron, Jean-Bernard; Jackson, Donald A. (October 2006). "Taphonomy of the Greater Phyllopod Bed community, Burgess Shale". PALAIOS. 21 (5): 451–65. doi:10.2110/palo.2003.P05-070R. JSTOR 20173022.
  3. Peel, John S.; Willman, Sebastian; Pedersen, Stig A. Schack (March 2020). "Unusual preservation of an Ordovician (Floian) arthropod from Peary Land, North Greenland (Laurentia)". PalZ. 94 (1): 41–51. doi:10.1007/s12542-019-00481-y. ISSN 0031-0220.
  4. Aria, Cédric; Caron, Jean-Bernard (September 2019). "A middle Cambrian arthropod with chelicerae and proto-book gills". Nature. 573 (7775): 586–589. doi:10.1038/s41586-019-1525-4. ISSN 0028-0836. PMID 31511691.


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.