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Goniocidaris (primary spine dentition)
Goniocidaris (primary spine dentition)
Description Definition of primary spines: a. "Basal discs" are developed at the base of the shaft being restricted usually to the adapical side and directed towards the centre of the test. b. "Terminal discs" are developed more or less as discs with smooth or indented margins at the distal end of the adapical spines: a. and b. Goniocidaris (Aspidocidaris) parasol. Author Schultz, Heinke JPG file - 66.86 kB - 530 x 705 pixels added on 2011-02-23414 viewsRAS taxaDigital photo, part of species Goniocidaris Desor in Agassiz & Desor, 1846checked Kroh, Andreas 2021-02-24From reference Schultz, H. (2011). Sea urchins III: Worldwide regular de... © 2011 Schultz, Heinke
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