The middle Smithian (Early Triassic) ammonoid Arctoceras blomstrandi: conch morphology and ornamentation in relation to stratigraphy

• Main Authors: Hansen, Bitten B., Bucher, Hugo, Schneebeli-Hermann, Elke, Hammer, Øyvind
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley-Blackwell Publishing, Inc. 2021
• Subjects: Department of Paleontology; 560 Fossils & prehistoric life; Hyatt; Svalbard
• Online Access: https://www.zora.uzh.ch/id/eprint/194357/; https://www.zora.uzh.ch/id/eprint/194357/1/Bolvig_Hansen_et_al_2020_Arcto-2.pdf; https://doi.org/10.5167/uzh-194357; https://doi.org/10.1002/spp2.1348

The ammonoid genus Arctoceras (Hyatt) occurs across all palaeolatitudes, and is a key genus for middle Smithian biostratigraphical correlations globally. In this study, intraspecific variations in conch morphology, ornamentation and allometry are examined in relation to stratigraphic position. Arcto...