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Swiss Journal of Palaeontology
Fig. 7 | Swiss Journal of Palaeontology

Fig. 7

From: 3-D orientation and distribution of ammonites in a concretion from the Upper Cretaceous Pierre Shale of Montana

Fig. 7

a, b Composition of the fauna in the concretion. The fauna is dominated by bivalves and gastropods in terms of both number of species and number of individuals. c, d Feeding types of the benthos. Suspension feeders dominate in terms of number of species whereas carnivores dominate in terms of number of individuals. e, f Bivalve mode of life. Infaunal bivalves dominate in terms of both number of species and number of individuals

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