Fig. 2 in Oldest mickwitziid brachiopod from the Terreneuvian of southern France

Fig. 2. Mickwitziid Kerberellus marcouensis Devaere, Holmer, and Clausen gen. et sp. nov. from the Terreneuvian Heraultia Member, Montagne Noire southern France). A. USTL2859-7; A1, external view of a ventral valve; A2, detail of A1, anterior marginal area with partially preserved external coating; A3, anterior view of a ventral valve; A4, detail of A3, external coating organised into radial furrows and ribs alternatively. B. USTL2857-6; B1, lateral view of ventral valve with external coating; B2, detail of B1, ridge between radial rows of pores damaged, giving the shell a radial striated pattern; B3, external view of ventral valve with external coating; B4, detail of B3, partially preserved external coating with damaged ridge between rows of pores. C. USTL2856-3 paratype); C1, external view of a ventral valve; C2, detail of C1, pustulose external mould (costae crossed by comarginal ribs). D. USTL2861-6; D1, posterior view of a ventral valve with thick external coating; D2, external view of ventral valve with external coating; D3, detail of D1, phosphatic internal moulds of pores running from the internal mould to the external coating. E. USTL1232-3; E1, external view of external mould; E2, detail of E1, sinuous radial costae associated with comarginal ribs; E3, lateral view of external mould; E4, detail of E3, external mould with ridges damaged.