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-Astropecten montalionis Meneghini 1852, MSNUP I-17605, from the Zanclean (Pliocene) of Montaione, Italy. (A) Inferomarginal fringe spines strong and divergent, flattened and longer than the corresponding plates. Scale bar corresponds to 3 mm. (B) Superomarginals contiguous but not closely abutted throughout their full height, spaced of about 2-4 mm. Scale bar corresponds to 11 mm. (C) Abactinal skeleton of arms with two longitudinal rows of aligned and paired ossicles. Scale bar corresponds to 11 mm. (D) Adambulacrials narrow, with robust and erect spines. Scale bar corresponds to 3 mm.

-Astropecten montalionis Meneghini 1852, MSNUP I-17605, from the Zanclean (Pliocene) of Montaione, Italy. (A) Inferomarginal fringe spines strong and divergent, flattened and longer than the corresponding plates. Scale bar corresponds to 3 mm. (B) Superomarginals contiguous but not closely abutted throughout their full height, spaced of about 2-4 mm. Scale bar corresponds to 11 mm. (C) Abactinal skeleton of arms with two longitudinal rows of aligned and paired ossicles. Scale bar corresponds to 11 mm. (D) Adambulacrials narrow, with robust and erect spines. Scale bar corresponds to 3 mm.

Source publication
Fig. 1 -Geographic location of the locality discussed in the present...
Fig. 2 -The façade of the church of San Regolo in Montaione as it can...
Fig. 3 -Resolution n. 209 of the Municipality of Montaione, raised on...
Fig. 4 -MSNUP I-17605, the holotype and only known specimen of...
+1 Fig. 5 -MSNUP I-17605, the holotype and only known specimen of...
REDESCRIPTION AND FIRST ILLUSTRATION OF THE HOLOTYPE OF ASTROPECTEN MONTALIONIS (MENEGHINI, 1852) [PAXILLOSIDA: ASTROPECTINIDAE]
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  • Dec 2018
Astropecten montalionis (Echinodermata: Asteroidea: Astropectinidae) was first described by Giuseppe Meneghini in 1852 (as Crenaster montalionis), the description following the donation by the municipality of Montaione (Tuscany, Central Italy) of a sandstone slab with an embedded fossil starfish specimen to the Museo di Storia Naturale dell’Univers...
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... fringe spines strong and divergent, flattened, and longer than the corresponding plates. Abactinal skeleton of the arms consisting of two longitudinal rows of aligned and paired ossicles; ambulacrals rather squared, smaller than (but similar in outline to) the marginals, distally longer than wide; adambulacrals narrow, with robust erect spines (Fig. ...