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Asteroidea source details
Spencer, W. K. (1914). The Evolution of the Cretaceous Asteroidea. Philosophical Transactions of the Royal Society B: Biological Sciences. 204(303-312): 99-177.
336607
10.1098/rstb.1914.0004 [view]
Spencer, W. K.
1914
The Evolution of the Cretaceous Asteroidea
Philosophical Transactions of the Royal Society B: Biological Sciences
204(303-312): 99-177
Publication
It was possible to show, in a recent monograph, that the isolated ossicles of Asteroidea, which are so frequently found by the field worker, could be identified by means of their shape and ornament. During the last four years large quantities of such material have passed through my hands. In consequence there is now sufficient evidence to trace the evolution of the great majority of Chalk Asteroidea through the whole of the zones of the chalk, and even in some cases to refer them to Jurassic ancestors. The importance of the investigation of chalk forms has been shown by Rowe (40, 41), who has pointed out (41 (v), p. 325) that “It is only in a deep-sea deposit like the Chalk, with slow, placid, and uninterrupted sedimentation taking place over vast periods of time, that we can reasonably hope to follow out every stage in the unbroken continuity of the evolution of a genus . . . .”
Europe
Paleontology, Fossils, Paleobiology
Date action by
Chomataster Spencer, 1914 † (original description)
Chomataster acules Spencer, 1914 † (original description) Chomataster praecursor Spencer, 1914 † (original description) Crateraster Spencer, 1914 † (original description) Lophidiaster Spencer, 1914 † accepted as Astropecten Gray, 1840 (original description) Lophidiaster ornatus Spencer, 1914 † accepted as Astropecten ornatus (Spencer, 1914) † (original description) Lophidiaster pygmaeus Spencer, 1914 † accepted as Astropecten pygmaeus (Spencer, 1913) † (original description) Metopaster crista-galli Spencer, 1914 † accepted as Metopaster calcar Spencer, 1914 † (original description) Metopaster decipiens Spencer, 1914 † (original description) Metopaster exsculptus Spencer, 1914 † (original description) Metopaster parkinsoni var. calcar Spencer, 1914 † accepted as Metopaster calcar Spencer, 1914 † (original description) Metopaster tumidus Spencer, 1914 † (original description) Metopaster tumidus var. radiatus Spencer, 1914 † accepted as Recurvaster radiatus (Spencer, 1914) † (original description) Metopaster undulatus Spencer, 1914 † (original description) Ophryaster Spencer, 1914 † (original description) Ophryaster magnus Spencer, 1914 † (original description) Phocidaster Spencer, 1914 † (original description) Phocidaster grandis Spencer, 1914 † (original description) Pycinaster humilis Spencer, 1914 † (original description) Pycinaster magnificus Spencer, 1914 † (original description) Stauranderaster gibbosus Spencer, 1914 † (original description) Stauranderaster gibbosus var. pyramidalis Spencer, 1914 † accepted as Aspidaster pyramidalis (Spencer, 1914) † (original description) Stauranderaster pyramidalis (Spencer, 1914) † accepted as Aspidaster pyramidalis (Spencer, 1914) † (original description) Stauranderasteridae Spencer, 1914 † (original description) Teichaster Spencer, 1914 † (original description) Teichaster favosus Spencer, 1914 † accepted as Crateraster favosus (Spencer, 1914) † (original description) Teichaster retiformis Spencer, 1914 † (original description) Tholaster Spencer, 1914 † accepted as Valettaster Lambert, 1914 † (original description) Trachyaster Spencer, 1914 † (original description) |