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Swiss Journal of Palaeontology
Fig. 20 | Swiss Journal of Palaeontology

Fig. 20

From: Roveacrinids (Crinoidea) from the mid-Cretaceous of Texas: ontogeny, phylogeny, functional morphology and lifestyle

Fig. 20

Diversification of roveacrinids during lifetime of the order. Selected examples are from Jaekel (1892), Jagt (1999), Hess (2002), Hess and Gale (2010), Hess and Messing (2011), and the present paper; figures of the specimens not to scale. IBr1 first primibrachial, IBr2 second primibrachial, IIBr secundibrachial, prox proximal facet, di distal facet

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