olenellidadj.n.
/ˌəʊləˈnɛlɪd/, U.S. /ˌoʊləˈnɛlɪd/ Palaeontology.
A. adj.
Of or relating to the family Olenellidae of primitive Lower Cambrian trilobites.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > trilobites > [adjective] > of or relating to family Olenellidae
olenellid1892
1892 B. N. Peach & J. Horne in Q. Jrnl. Geol. Soc. 48 239 Among the disjecta membra of Olenellid trilobites from the dark shales..are certain portions of the carapaces of a much larger species.
1937 Jrnl. Paleontol. 11 578/2 The olenellid shell is for its size excessively thin.
1969 G. M. Bennison & A. E. Wright Geol. Hist. Brit. Isles iv. 87 The fauna of the Lower Cambrian chiefly comprises Olenellid trilobites.
1998 Jrnl. Paleontol. 72 650 The olenellid fauna from the 2-meter interval below the extinction boundary is described.
B. n.
A trilobite of the family Olenellidae.
ΘΚΠ
the world > animals > invertebrates > phylum Arthropoda > trilobites > [noun] > family Olenellidae > member of
olenellid1892
1892 B. N. Peach & J. Horne in Q. Jrnl. Geol. Soc. 48 240 One word of speculation as to the systematic position of the Olenellids may be admissible here.
1937 Jrnl. Paleontol. 11 577/1 Olenellids present a most interesting association of primitive and specialized characters.
1973 P. Tasch Paleobiol. Invertebr. xi. 518/1 The so-called abortive segments in..other olenellids might be evidence of the type of asexual budding that occurs in certain primitive polychaete worms.
1993 E. N. K. Clarkson Invertebr. Palaeontol. & Evol. (ed. 3) xi. 349/2 The morphological series..suggests that it was originally present as an important ventral strucural component in such early trilobites as the olenellids.
This entry has been updated (OED Third Edition, March 2004; most recently modified version published online March 2022).
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adj.n.1892