Mechanisms and drivers of belemnite body-size dynamics across the Pliensbachian–Toarcian crisis

Authors: Rita, P., Nätscher, P., Duarte, L. V., Weis, R., & De Baets, K.
Journal: Royal Society Open Science, 6(12), 190494.

CCATs Patrícia and Paulina show how global warming over the Pliensbachian-Toarcian boundary co-occurs with a shrinking of adult body size in two belemnite species, related to modern-day squid and cuttlefish. This supports the hypothesis that a decrease in body size is a common response to global warming in many organisms.

Figure: Conceptual scheme depicting the tested hypotheses regarding the mechanisms behind belemnite body-size reduction, at different palaeobiological scales of organization.

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