单词 | orbitolinid |
释义 | orbitolinidadj.n. Palaeontology. A. adj. Of or relating to the family Orbitolinidae of foraminiferans, occurring as fossils in deposits of Jurassic to mid-Tertiary age. ΚΠ 1955 Contrib. Cushman Found. Foraminiferal Res. 6 88/1 Externally, most genera of the orbitolinid group show similar features. 1990 Bot. Gaz. 151 545/2 Along the irregular coastline of this sea, thick Cretaceous shelf sediments of limestone accumulated containing nerideid, rudist, and orbitolinid species typical of warm and shallow seas. 2000 Cretaceous Res. 21 155 The mid Cretaceous shallow-water limestones on the islands of Cres and Losinj contain abundant and diversified orbitolinid foraminifera. B. n. A foraminiferan of the family Orbitolinidae. ΚΠ 1960 Micropaleontology 6 260/1 The wall of typical orbitolinids consists of two parts. 1988 Philos. Trans. (Royal Soc.) B. 327 132 Abundant orbitolinids indicate shallow lagoonal conditions. 2002 Sedimentology 49 555 Discoidal orbitolinids and calcareous algae were deposited during early transgression. This is a new entry (OED Third Edition, September 2004; most recently modified version published online March 2022). < adj.n.1955 |
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