The Ordovician bioclaustration revolution: A new paper
Bioclaustration is the process by which an organism is embedded within the growing skeleton of another. Bioclaustrations are fascinating in the fossil record because they give direct information about how two or more organisms lived together in the ancient past — a form of symbiosis. My Estonian and German colleagues have just published a paper in the journal Geobios on the rapid burst of bioclaustrations in the Late Ordovician. The senior author is the indefatigable Olev Vinn. The abstract tells the story —
ABSTRACT: There was a sudden increase in the diversity of bioclaustrations in the Sandbian (Late Ordovician) that continued somewhat more slowly in the Katian. The Sandbian was also the time when bioclaustrations became common, at least in Baltica. The major increase in the diversity of bioclaustrations in the Late Ordovician was an outcome of the GOBE [Great Ordovician Biodiversification Event], and we term it the Ordovician Bioclaustration Revolution. The Ordovician Bioerosion Revolution may partially be responsible for the beginning of the Ordovician Bioclaustration Revolution in the Sandbian, as a number of these early bioclaustrations started their growth from initial borings. The diversification of bioclaustrations in the Sandbian involves mostly bryozoans and, to a lesser extent, brachiopods as hosts. The Katian increase in bioclaustration diversity involves mostly corals as the hosts and was likely unrelated or at least less influenced by the Ordovician Bioerosion Revolution. A new broadly conical bioclaustration, Kuckerichnus kirsimaei nov. cgen., nov. csp., is here described from the growth surfaces of hemispherical trepostome bryozoan colonies of Diplotrypa bicornis, Mesotrypa orientalis and Mesotrypa excentrica from the early Sandbian (Late Ordovician) of Estonia.
The top image is from Figure 2 in the paper. The caption: Holotype GIT 343-45-2 of Kuckerichnus kirsimaei nov. cgen., nov. csp. in Diplotrypa bicornis from the Küttejõu opencast mine, Kukruse Regional Stage. B. Paratype GIT 343-45-4 of Kuckerichnus kirsimaei nov. cgen., nov. csp. in Diplotrypa bicornis from the Küttejõu opencast mine, Kukruse Regional Stage. C. Paratype GIT 343-45-5 of Kuckerichnus kirsimaei nov. cgen., nov. csp. in Diplotrypa bicornis from the Küttejõu opencast mine, Kukruse Regional Stage. D. Paratype GIT 343-48-1 of Kuckerichnus kirsimaei nov. cgen., nov. csp. in Mesotrypa orientalis from the Küttejõu opencast mine, Kukruse Regional Stage. Scale bars: 1 mm.
I enjoyed this project very much because it summarizes decades of work going back to when my friend Tim Palmer and I were working together for the first time in the 1980s. It is nice to see so many concepts and observations coming together into coherent, testable evolutionary hypotheses.
Reference:
Vinn, O., Wilson, M.A., Ernst, A. and Toom, U. 2023. The Ordovician bioclaustration revolution. Geobios (https://doi.org/10.1016/j.geobios.2022.10.007) [Link goes to free pdf until July 25, 2023.]
Source: https://woostergeologists.scotblogs.wooster.edu/2023/06/06/the-ordovician-bioclaustration-revolution-a-new-paper/
Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.
"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.
Please Help Support BeforeitsNews by trying our Natural Health Products below!
Order by Phone at 888-809-8385 or online at https://mitocopper.com M - F 9am to 5pm EST
Order by Phone at 866-388-7003 or online at https://www.herbanomic.com M - F 9am to 5pm EST
Order by Phone at 866-388-7003 or online at https://www.herbanomics.com M - F 9am to 5pm EST
Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!
HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation.
Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.
MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)
Oxy Powder - Natural Colon Cleanser! Cleans out toxic buildup with oxygen!
Nascent Iodine - Promotes detoxification, mental focus and thyroid health.
Smart Meter Cover - Reduces Smart Meter radiation by 96%! (See Video).