单词 | macrochoanite |
释义 | macrochoaniten. Palaeontology. Now historical. A fossil nautiloid of the former group Macrochoanites (of unspecified rank, more or less equivalent to the modern family Bactritidae), characterized by relatively long septal necks. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Nautilidae > member of > with each septal neck reaching preceding one macrochoanite1883 1883 A. Hyatt in Proc. Boston Soc. Nat. Hist. 22 260 We, therefore, divide the Ellipochoanoida into the true Microchoanites,..and the Macrochoanites. 1964 C. Teichert in R. C. Moore Treat. Invertebr. Paleont. K. 95/1 Hyatt distinguished the Bactritidae as ‘Macrochoanites’. This entry has been updated (OED Third Edition, March 2000; most recently modified version published online March 2022). < n.1883 |
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