Echinoidea taxon details
original description
(of Laganum depressum tenue Mortensen, 1948) Mortensen, T. (1948). A Monograph of the Echinoidea. IV, 2. Clypeasteroida. Clypeasteridæ, Arachnoidæ, Fibulariidæ, Laganidæ and Scutellidæ. 471 pp., C. A. Reitzel, Copenhagen. page(s): 319-322; pl. 53: figs. 3-4, 9 [details]
original description
(of Laganum depressum tenue Mortensen, 1948) Mortensen, T. (1948). New Echinoidea (Cassiduloida, Clypeasteroida). Preliminary notice. <em>Videnskabelige Meddelelser fra Dansk naturhistorisk Forening i København.</em> 111: 67-72. page(s): 69 [details] Available for editors
original description
(of Laganum depressum var. tenue Mortensen, 1948) Mortensen, T. (1948). A Monograph of the Echinoidea. IV, 2. Clypeasteroida. Clypeasteridæ, Arachnoidæ, Fibulariidæ, Laganidæ and Scutellidæ. 471 pp., C. A. Reitzel, Copenhagen. page(s): 319-322; pl. 53: figs. 3-4, 9 [details]
Present Inaccurate Introduced: alien Containing type locality
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