Devonian Paleoenvironments of Ohio by Rituparna Bose

By Rituparna Bose

Carbonate depositional platforms within the Paleozoic geologic time signify fewer experiences in paleoecological interactions than the siliciclastic platforms. to guage this distinction, the paleontology of the center Devonian Dundee Formation in Ohio has been explored. This geologic formation represents an incredible setting within the Michigan Basin of North the USA. knowing biotic relationships reminiscent of mutualism, commensalism, parasitism and predation in an ecological neighborhood is critical in unraveling the secret of the fossil checklist. This examine has contributed a wide box assortment with the intention to be worthy in documenting the fossil content material of this unit for destiny employees.

Rituparna Bose used new microscopic and imaging strategies in qualitatively studying the biotic interactions in small invertebrate shells. extra importantly, she solved advanced hypotheses in newly rising difficulties within the box of geology and paleontology, equivalent to the biodiversity quandary. Her examine concerned exploring the Devonian geology and paleontology of a geologic formation of a brand new unexplored quarry in Ohio, specifically the Whitehouse Quarry in Lucas County, Ohio. She pointed out Devonian brachiopods to the genus point in keeping with their morphology, and clinically determined paleoecological entities on host brachiopods and extra measured episkeletobiont strains on hosts to appreciate the consequences of atmosphere and evolution on extinct species.

Such experiences have implications in predicting destiny biodiversity, environment conservation and weather swap. This study also will help destiny staff to match the ecology of brachiopod hosts of the Dundee Limestone with that of alternative Devonian brachiopods, from either carbonate and siliciclastic settings.

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Thus, the Dundee was a mesotrophic site and the low amount of encrustation could be directly due to low productivity. I strongly think that the third cause, that is, intense bioturbation, is a more likely explanation for the low amount of encrustation in the Dundee Formation, while at the same time, the first cause, that is, poor preservation of the shells cannot be wholly neglected. Therefore, future sampling of non-storm beds in eutrophic sites in an extensive area could possibly rule out the first, second and third causes and further confirm my hypothesis for the rarity of encrustation in the Dundee.

Acta Palaeontol Pol 50(2):315–328 Hoare RD, Walden RL (1983) Vermiforichnus (Polychaeta) borings in Paraspirifer bowneckeri (Brachiopoda: Devonian). Ohio J Sci 83(3):114–119 Sparks DK, Hoare RD, Kesling RV (1980) Epizoans on the brachiopod Paraspirifer bowneckeri (Stewart) from the Middle Devonian of Ohio. University of Michigan Museum of Paleontology. Papers on Paleontology, 23:1–50 Steller DL (1965) The epifaunal elements on the Brachiopoda of the silica formation. Unpublished master’s thesis, Bowling Green State University, Bowling Green, p 76 Wilson MA, Taylor PD (1999) Carbonate hardgrounds and their faunas in a coarse siliciclastic environment: the Qahlah Formation (Upper Cretaceous) of the Oman Mountains.

12). 5 Results: Paleontological Analysis Types of Biological Traces 30 Large boreholes Scars Branching grooves Sheet-like encrustation 0 2 4 6 8 10 12 14 Frequency Fig. 2, Fig. 2). 1 Microstructures Brachiopods have various microstructures, which could be mistaken for epibiont traces (Figs. 5). 02 mm) or more in diameter defined as punctae (Williams et al. 1997), which respectively accommodate the Fig. 3 Shell structure of a brachiopod penetrated from inside by large, regularly arranged, elongated perforations called punctae, normal to the surface (modified from Clarkson 1986, p.

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