IRMNG name details
additional source
Steemans, P.; Wellman, C. H. (2018). A key for the identification of cryptospores. <em>Palynology.</em> 42(4): 492-503., available online at https://doi.org/10.1080/01916122.2017.1411844 [details]
source of synonymy
Wellman, C. H.; Steemans, P.; Miller, M. A. (2015). Spore assemblages from Upper Ordovician and lowermost Silurian sediments recovered from the Qusaiba-1 shallow core hole, Qasim region, central Saudi Arabia. <em>Review of Palaeobotany and Palynology.</em> 212: 111-126., available online at https://doi.org/10.1016/j.revpalbo.2014.09.003 [details]
habitat flag source
as per family [details]
Unreviewed
Descriptive info Siluro-Devonian boundary; Spain (Valporquero de Torío, León). (Index Nominum Genericorum) [details]
Taxonomic remark Originally described as a sporomorph, this genus was referred to the Chlorococcales by W. Wille (1970). (Index Nominum Genericorum). From Steemans & Wellman, 2018: Tetraletes/Quadrisporites was for a long time considered a cryptospore by many workers. However, Bock et al. (2013), Le Hérissé (2002) and Wellman et al. (2015) demonstrated that it has escape structures and is almost certainly an algal resting cyst rather than a dispersed spore. Wellman et al., 2015 state: It is likely that Quadrisporites is a polyphyletic taxon (algal coenobia or cryptospores; see discussion in e.g., Strother (1991); Amenabar et al. (2006)). Tetraletes Cramer, 1966 is a junior synonym of Quadrisporites. [details]
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