单词 | orbitolite |
释义 | orbitoliten. Palaeontology. Now rare. 1. A fossil foraminiferan of the genus Orbitolites, having a discoid shell. ΘΚΠ the world > animals > invertebrates > protozoa > class Sarcodina > order Rhizopoda > [noun] > suborder Foraminifera > member of > fossil of genus Orbitolites orbitolite1849 orbitoline1883 1849 R. I. Murchison in Q. Jrnl. Geol. Soc. 5 i. 192 The Orbitolites..occupy beds of considerable thickness. 1855 Proc. Royal Soc. 7 418 The Orbitolite has been chiefly known..through the abundance of its fossil remains in the Eocene beds of the Paris basin. 1879 Encycl. Brit. IX. 376/2 In the typical Orbitolite the plan of growth is cyclical from the first. 1928 Proc. Royal Soc. 1927–8 B. 102 p. iv Other papers dealing with the phenomena of dimorphism in Orbitolites, Triloculina, Biloculina, and the Nummulites were published. ΚΠ 1890 Cent. Dict. Orbitolite 2, a fossil coral of the genus Orbitolites. This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022). < n.1849 |
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