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Fig. 1 | EvoDevo

Fig. 1

From: Brachiopod and mollusc biomineralisation is a conserved process that was lost in the phoronid–bryozoan stem lineage

Fig. 1

A Cladogram depicting lophotrochozoan interrelationships [23, 43, 44] (in green) with Rouphozoa [45] as outgroup (in black) with an overview of mineralisation capacities. Taxa marked with an obelisk are Cambrian stem groups of their respective sister clades. B Detailed morphology of the mantle margin which excretes the shell of the brachial valve. Lobate cells (pink) secrete the organic portion of the periostracum, while vesicular cells (green) produce the primary layer of the inorganic shell and the outer epithelial cells of the mantle (purple) secrete the secondary layer of the inorganic shell. EC outer mantle epithelial cell, LC lobate cell, PO periostracum, PS periostracal slot, SF fibre of the secondary shell layer, VC vesicular cell. Drawing after Stricker and Reed 1985 [40]

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EvoDevo

ISSN: 2041-9139