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(1918) II.—Morphological Studies on the Echinoidea Holectypoida and their Allies. Geological Magazine, S. 6 Vol. 5 (1) 4-14 doi:10.1017/s001675680019199x

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Reference TypeJournal (article/letter/editorial)
TitleII.—Morphological Studies on the Echinoidea Holectypoida and their Allies
JournalGeological Magazine
Year1918 (January)Series:Volume6:5
Issue1
PublisherCambridge University Press (CUP)
DOIdoi:10.1017/s001675680019199x
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Mindat Ref. ID266983Long-form Identifiermindat:1:5:266983:4
GUID0
Full Reference(1918) II.—Morphological Studies on the Echinoidea Holectypoida and their Allies. Geological Magazine, S. 6 Vol. 5 (1) 4-14 doi:10.1017/s001675680019199x
Plain Text(1918) II.—Morphological Studies on the Echinoidea Holectypoida and their Allies. Geological Magazine, S. 6 Vol. 5 (1) 4-14 doi:10.1017/s001675680019199x
In(1918, January) Geological Magazine S. 6 Vol. 5 (1) Cambridge University Press (CUP)
Abstract/NotesIn the three preceding papers of this series descriptions have been given of the perignatliie girdles of familiar representatives of the three families into which the Holectypoida are at present divided. From the scanty evidence available, it would appear that in respect of this structure Plesiechinus is typical of the Pygasteridæ (even including Anorthopygus). The girtile of Holectypus seems essentially similar, thereby differing from that of the Discoidiinse; but as yet the perignathic structures of the Cretaceous Coenholectypus are unknown.


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