Horodyskia

Superregnum: Eukaryota
Regnum: incertae sedis
Phylum: incertae sedis
Classis: incertae sedis
Familia: incertae sedis
Genus: †Horodyskia
Species: †H. minor – †H. moniliformis

Horodyskia Yochelson & Fedonkin, 2000: 844

Type species: Horodyskia moniliformis Yochelson & Fedonkin, 2000.

• Longbizuiella Yi et al., 2022: 16, 17 [syn.: Li et al., 2023]
  • Type species: Longbizuiella hunanensis Yi et al., 2022 [= Horodyskia minor Dong et al., 2008].
• Parahorodyskia Liu & Dong in Liu et al., 2022: 4, 5 [syn.: Li et al., 2023]
  • Type species: Parahorodyskia disjuncta Liu & Dong in Liu et al., 2022 [= Horodyskia minor Dong et al., 2008].

• Li, G., Chen, L., Pang, K., Tang, Q., Wu, C., Yuan, X., Zhou, C. & Xiao, S. 2023. Tonian carbonaceous compressions indicate that Horodyskia is one of the oldest multicellular and coenocytic macro-organisms. Communications Biology 6: 399. DOI: 10.1038/s42003-023-04740-2 . Reference page. 
• Liu, H., Dong, L., Qin, S., Liu, W. & Li, C. 2022. Restudy of string fossils from the Ediacaran-Cambrian Liuchapo Formation in Guizhou Province, South China. Precambrian Research 376: 106693. DOI: 10.1016/j.precamres.2022.106693 . Reference page. 
• Yi, Y., Chen, F., Algeo, T.J. & Feng, Q. 2022. Deep-water fossil assemblages from the Ediacaran-Cambrian transition of western Hunan, South China and their biostratigraphic and evolutionary implications. Palaeogeography, Palaeoclimatology, Palaeoecology 591: 110878. DOI: 10.1016/j.palaeo.2022.110878 . Reference page. 
• Yochelson, E.L. & Fedonkin, M.A. 2000. A new tissue-grade organism 1.5 billion years old from Montana. Proceedings of the Biological Society of Washington 113(3): 843–847. BHL. DOI: 10.5281/zenodo.13412506 . Reference page. 

• Fedonkin, M.A. & Yochelson, E.L. 2002. Middle Proterozoic (1.5 Ga) Horodyskia moniliformis Yochelson and Fedonkin, the Oldest Known Tissue-Grade Colonial Eucaryote. Smithsonian Contributions to Paleobiology 94: 1–29. DOI: 10.5479/si.00810266.94.1 . Reference page. 
• Grey, K., Yochelson, E.L.(†), Fedonkin, M.A. & Martin, D.McB. 2010. Horodyskia williamsii new species, a Mesoproterozoic macrofossil from Western Australia. Precambrian Research 180: 1–17. DOI: 10.1016/j.precamres.2010.02.006 . Academia.edu . Reference page. 
• Retallack, G.J., Dunn, K.L. & Saxby, J. 2013. Problematic Mesoproterozoic fossil Horodyskia from Glacier National Park, Montana, USA. Precambrian Research 226: 125–142. DOI: 10.1016/j.precamres.2012.12.005 . Reference page.  [interpreted as Geosiphon-like fungus]
• Rule, R.G. & Pratt, B.R. 2019. The pseudofossil Horodyskia: Flocs and flakes on microbial mats in a shallow Mesoproterozoic sea (Appekunny Formation, Belt Supergroup, western North America). Precambrian Research 333: 105439. DOI: 10.1016/j.precamres.2019.105439 . Reference page.  [interpreted as pseudofossil]