A Multidisciplinary Palaeoenvironmental Reconstruction of the Campanian Foremost Formation of Southern Alberta
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The Foremost Formation of southern Alberta is the basal member of the Campanian Belly River Group, and has been understudied relative to the overlying Oldman and Dinosaur Park formations of this group. Examined outcrop of the upper Foremost Formation preserves coastal barrier island/lagoonal environments that transition upward into more inland coastal/ fluvial plain environments during the Claggett marine regression of the Western Interior Seaway. A low abundance, low diversity agglutinated benthic foraminiferal fauna, together with whole rock geochemical proxies, suggests commonly stressed oxygen and salinity conditions in marginal marine environments. Vertebrate microsite faunas display a primarily brackish water environmental influence, with an increase in diversity upsection in conjunction with increased terrestrial deposition. Hadrosaur remains suggest the previously unknown presence of kritosaurs and potentially a basal hadrosauroid, suggesting that the Foremost Formation dinosaur fauna was similarly diverse compared to faunas of well-characterized Campanian formations in North America.
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Copyright © 2018 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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thompson-amultidisciplinarypalaeoenvironmentalreconstruction.pdf | 2023-05-05 | Public | Download |