holochoaniten.

/ˌhɒləʊˈkəʊənʌɪt/

Forms: Also Holochoanite.

Etymology: < modern Latin Holochoanites, altered form of Holochoanoida (see holochoanoidal adj.): see -ite suffix¹ 2a.

Palaeontology.

A nautiloid cephalopod in which the septal necks extend from the septum in which they originate as far as the next septum towards the apex; also, a member of the obsolete sub-order Holochoanites, of which such necks were characteristic.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Nautilidae > member of > with septal neck extending to next septum

holochoanite1898

1898 A. Hyatt in Proc. 47th Meeting Amer. Assoc. Advancem. Sci. 364 The suborders..are as follows: I. Holochoanites with the funnels of the siphuncle reaching entirely across each air chamber completely shutting off the interior of each chamber from the interior of the siphuncle.

1929 Bull. Geol. Soc. China 8 119 Stages in development of the primitive Holochoanite.

1944 E. O. Ulrich et al. Ozarkian & Canad. Cephalopods III III. 28 Most of the Early Paleozoic holochoanites that have long straight conchs can be referred to the Endoceratidae, but a few..are being placed in the Suecoceratidae.

1952 R. C. Moore et al. Invertebr. Fossils ix. 342/1 Thin-section studies indicate that the elongate septal necks which are supposed to distinguish the Holochoanites occur only in a minority of them.

Derivatives

ˌholochoaˈnitic adj. (having septal necks) characteristic of a holochoanite; (by some writers used to include macrochoanitic adj.).

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [adjective] > belonging to order Tetrabranchiata > relating to the nautili > holochoanitic

holochoanoidal1883

holochoanitic1905

1905 Bull. N.Y. State Mus. lxxx. 339 Piloceras newtonwinchelli Clarke is by the structure of its ectosiphuncle not a holochoanitic form..but an orthochoanitic form.

1950 Jrnl. Paleontol. 24 604/1 Only a small part of Hyatt's Holochoanites is actually holochoanitic.

1964 C. Teichert in R. C. Moore Treat. Invertebr. Paleont. K. 164/2 Endoceratidae with holochoanitic, and even macrochoanitic, septal necks and complete endocone systems also appeared in the late Early Ordovician.

This entry has not yet been fully updated (first published 1976; most recently modified version published online December 2020).

单词	holochoanite
释义	holochoaniten. /ˌhɒləʊˈkəʊənʌɪt/ Forms: Also Holochoanite. Etymology: < modern Latin Holochoanites, altered form of Holochoanoida (see holochoanoidal adj.): see -ite suffix¹ 2a. Palaeontology. A nautiloid cephalopod in which the septal necks extend from the septum in which they originate as far as the next septum towards the apex; also, a member of the obsolete sub-order Holochoanites, of which such necks were characteristic. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Nautilidae > member of > with septal neck extending to next septum holochoanite1898 1898 A. Hyatt in Proc. 47th Meeting Amer. Assoc. Advancem. Sci. 364 The suborders..are as follows: I. Holochoanites with the funnels of the siphuncle reaching entirely across each air chamber completely shutting off the interior of each chamber from the interior of the siphuncle. 1929 Bull. Geol. Soc. China 8 119 Stages in development of the primitive Holochoanite. 1944 E. O. Ulrich et al. Ozarkian & Canad. Cephalopods III III. 28 Most of the Early Paleozoic holochoanites that have long straight conchs can be referred to the Endoceratidae, but a few..are being placed in the Suecoceratidae. 1952 R. C. Moore et al. Invertebr. Fossils ix. 342/1 Thin-section studies indicate that the elongate septal necks which are supposed to distinguish the Holochoanites occur only in a minority of them. Derivatives ˌholochoaˈnitic adj. (having septal necks) characteristic of a holochoanite; (by some writers used to include macrochoanitic adj.). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [adjective] > belonging to order Tetrabranchiata > relating to the nautili > holochoanitic holochoanoidal1883 holochoanitic1905 1905 Bull. N.Y. State Mus. lxxx. 339 Piloceras newtonwinchelli Clarke is by the structure of its ectosiphuncle not a holochoanitic form..but an orthochoanitic form. 1950 Jrnl. Paleontol. 24 604/1 Only a small part of Hyatt's Holochoanites is actually holochoanitic. 1964 C. Teichert in R. C. Moore Treat. Invertebr. Paleont. K. 164/2 Endoceratidae with holochoanitic, and even macrochoanitic, septal necks and complete endocone systems also appeared in the late Early Ordovician. This entry has not yet been fully updated (first published 1976; most recently modified version published online December 2020). < n.1898
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