On the Inside of Travellers: Morphology of Early Juvenile Ammonites And Their Implications for Faunal Dynamics in the Late Cretaceous

菊石总科是一种分布广泛、数量丰富的化石，其中许多可作为精确的生物地层标志。由于缺乏对软组织的保存，人们对这种生物本身知之甚少。丰富的Ammonoidea可以提供一个代理的气候和古海洋变化对微生物在地球历史上的影响，如果他们更好地理解为生物。拟议项目的目的是对最内轮的形态，即洋流漂移的可疑阶段，及其与整个晚白垩世若干时间段内所考虑物种的古生物地理分布的关系进行基于物种的研究和对比。由此可以得出晚白垩世环境变化对菊石生物的影响。将使用磨削层析成像，同时测试其进一步的应用，例如化石的虚拟存储，例如不稳定的保存类型。

Ammonoidea are abundant, widespread and even popular fossils, many are useful as precise biostratigraphic indices. Due to the lack of soft part preservation, little is known about the organism itself. Ammonoidea in their richness could provide a proxy for the impact of climatic and palaeoceanograpic changes on microorganisms in Earth history, if they were better understood as organisms. The aim of the proposed project is a species-based study and correlation of the morphology of the innermost whorls, i.e. the suspected phase of drift in oceanic currents, and its connection with the palaeobiogeographical distribution of the considered species in several time slices throughout the Late Cretaceous. Like that, conclusions on the impacts of the many environmental changes of the Late Cretaceous on the ammonoidea as organisms can be drawn. Grinding tomography will be used and at the same time tested for further applications such as virtual storage of fossils, e.g. in unstable types of preservation.