Spondylus labiatus (Wahlenberg, 1821)
WAHLENBERG, G. 1921. Petrificata telluris suecanae. Nova Acta Regiae Societatis Scientiarum Upsaliensis, 8: 1-116, pls. 1-4 [p. 59, pl. 4, figs. 5, 6]
1821 Ostracites labiatus Wahlenberg, 1821
G. Wahlenberg, 1821, plate 4.
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«3) Ostracites labiatus: semiorbicularis radiatim flexuose sulcatus, in medio cavus, versus ambitum extensus flexuosusque, latere cardinis rectilineo alato. Icon in nostra Tab. IV. figg. 5. 6. Frequentissimus in Bahlsberg, sed alibi nunquam visus. Rarissime cum cardine legitur; et altera valvula, sine dubio planior, ignota manet. Magnitudine plerumque sesquipollicaris est. Tum intus ac extus pari fere gradu sulcatus. Alias polymorpha species, vario modo flexa et distorta.»
GEORGIO WAHLENBERG, 1821
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«Medium sized (up to 50 mm in height); outline elongate to oval; left valve inflated, cylindrical and cemented to substrate along small portion of shell (boulders and hummocks); right valve lid like; outer surface with strong radial ribs and few prominent growth lines. Species commonly found in clusters, with radial, petal-like arrangement pattern; easily recognised by strong radial ribs and elongate outline.»
SØRENSEN, A. M., F. SURLYK & J. W. M. JAGT. 2012. Adaptive morphologies and guild structure in a high-diversity bivalve fauna from an early Campanian rocky shore, Ivö Klack (Sweden). Cretaceous Research, 33: 21-41, figs. 1-15. [p. 28]
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Spondylus labiatus (Wahlenberg, 1821); A. M. Sørensen, F. Surlyk & J. W. M. Jagt, 2012, Adaptive morphologies and guild structure in a high-diversity bivalve fauna from an early Campanian rocky shore, Ivö Klack (Sweden), figure 7A.
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