Hemichordata (Enteropneusta & Pterobranchia, incl. Graptolithina): A review of their fossil preservation as organic material

Abstract

Fossil preservation has been discussed at length in nu merous publications, but still many details are unclear or have not been considered. It is usually discussed in relation to individual fossil groups (e.g. bacteria, brachiopods, graptolites, plants, trilobites, vertebrates) or types of fossil lagersttten (cf. Seilacher 1970). In the Hemichordata, the preservation of the fossils is especially important, as the involved materials differ considerably between the two groups, the Enteropneusta (Fig.

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