cryptodontn.adj.

Brit.

/ˈkrɪptə(ʊ)dɒnt/, U.S.

/ˈkrɪptəˌdɑnt/

Origin: Formed within English, by compounding; modelled on Latin lexical items. Etymons: crypto- comb. form, -odont comb. form.

Etymology: < crypto- comb. form + -odont comb. form. In senses A. 1 and B. 1 after either scientific Latin Cryptodontia, former family name (R. Owen 1860, in Rep. Brit. Assoc. Adv. Sci. 1859 162) or scientific Latin Cryptodontidae, current family name (S. H. Haughton & A. S. Brink 1954, in Palaeontologia Africana 2 6). In senses A. 2 and B. 2 after scientific Latin Cryptodonta, subclass name (M. Neumayr 1884, as German Cryptodonte, in Sitzungsber. der Kaiserlichen Akad. der Wissensch.: Math.-Naturwissensch. Classe 88 Abt. I. 392); compare also scientific Latin Cryptodon, former genus name ( W. Turton Conchylia Insularum Britannicarum (1822) 12).

Palaeontology and Zoology.

A. n.

1. Any of various extinct dicynodont reptiles constituting the Late Permian family Cryptodontidae, which lacked obvious teeth. rare.

ΘΚΠ

the world > animals > reptiles > [noun] > unspecified and miscellaneous types of

gagrill14..

cryptodont1860

opisthocoelian1890

1860 Fraser's Mag. Oct. 516/1 The cryptodonts seem to have been an edentulous order, i.e., to have possessed no perceptible teeth.

1981 Jrnl. Vertebr. Palaeontol. 1 236/1 All other cryptodonts are from the Late Permian of South Africa, Zambia, and Tanzania.

2. Any of various chiefly extinct bivalve molluscs constituting the subclass or superorder Cryptodonta, the shells of which have no hinge teeth.The Cryptodonta comprise the Palaeozoic order Praecardioida and the extant order Solemyoida, though the latter is now often placed in a different subclass.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > miscellaneous types > other types of mollusc

squame1393

shell-worm1591

spout-fish1594

pentadactyl1601

sea cucumber1601

pirot1611

worm1621

nun-fish1661

scarlet mussel1672

sea-navel1678

redcap?1711

strawberry cockle1713

sea-finger1748

sea-nail1748

sea-acorn1755

coneya1757

compass1776

bubble shell1818

glass-shell1851

golden comb1857

cryptodont1893

nuculoid1960

1893 N.E.D. at Crypto- Cryptodont a. or sb., having the teeth concealed or suppressed; applied to certain palæozoic bivalve molluscs.

1898 Jrnl. Royal Miscrosc. Soc. 1898 298 Phylogeny of Lamellibranchs.—H. Douville adopts Neumayr's classification:—Taxodonts, Dysodonts, Desmodonts, Heterodonts, and the imperfectly known Cryptodonts.

1969 R. C. Moore et al. Treat. Invertebr. Paleontol.: Part N I. 115/1 Of the cryoptodonts, Edmondia and Sanguinolites are unrepresented in the Triassic.

2000 Jrnl. Paleontol. 74 600/1 The hypothesis of halobioids as cryptodonts is not supported either by ligament features..or by the lack of taxodont dentition.

B. adj.

†1. Designating the family Cryptodontidae of reptiles; relating or belonging to this family Obsolete. rare.

ΚΠ

1861 W. S. Symonds Old Bones iii. 82 The Rhynchosaurus (beaked lizard)..belongs to..the Cryptodont family of Owen; so called from the animals which compose it being edentulous, or possessing inconspicuous teeth.

1883 Ogilvie's Imperial Dict. (new ed.) III. 333/2 Oudenodon, a genus of fossil cryptodont reptiles, that is, reptiles whose teeth are either concealed or absent.

2. Of or relating to the subclass or superorder Cryptodonta of molluscs.

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [adjective] > of types of > belonging to other groups of

encephalous1851

rhipidoglossate1869

cephalous1874

thecosomatous1878

rhipidoglossan1882

schizodinic1883

cryptodont1889

odontophoran1890

marginellid1917

1889 Cent. Dict. 1380/2 Cryptodont, having concealed teeth, or not known to have teeth; specifically, pertaining to the Cryptodonta or Cryptodontia.

1953 Jrnl. Palaeontol. 27 776/1 The cryptodont classification of Zalanyi appears to apply only to immature shells, in which the hinge structure is weak and primitive.

2000 Palaios 15 172/2 What they are comparing is two of the better known Silurian cryptodont genera, Cardiola and Slava, with several Upper Cretaceous inoceramid genera.

This entry has been updated (OED Third Edition, June 2011; most recently modified version published online March 2022).

单词	cryptodont
释义	cryptodontn.adj. Brit. /ˈkrɪptə(ʊ)dɒnt/, U.S. /ˈkrɪptəˌdɑnt/ Origin: Formed within English, by compounding; modelled on Latin lexical items. Etymons: crypto- comb. form, -odont comb. form. Etymology: < crypto- comb. form + -odont comb. form. In senses A. 1 and B. 1 after either scientific Latin Cryptodontia, former family name (R. Owen 1860, in Rep. Brit. Assoc. Adv. Sci. 1859 162) or scientific Latin Cryptodontidae, current family name (S. H. Haughton & A. S. Brink 1954, in Palaeontologia Africana 2 6). In senses A. 2 and B. 2 after scientific Latin Cryptodonta, subclass name (M. Neumayr 1884, as German Cryptodonte, in Sitzungsber. der Kaiserlichen Akad. der Wissensch.: Math.-Naturwissensch. Classe 88 Abt. I. 392); compare also scientific Latin Cryptodon, former genus name ( W. Turton Conchylia Insularum Britannicarum (1822) 12). Palaeontology and Zoology. A. n. 1. Any of various extinct dicynodont reptiles constituting the Late Permian family Cryptodontidae, which lacked obvious teeth. rare. ΘΚΠ the world > animals > reptiles > [noun] > unspecified and miscellaneous types of gagrill14.. cryptodont1860 opisthocoelian1890 1860 Fraser's Mag. Oct. 516/1 The cryptodonts seem to have been an edentulous order, i.e., to have possessed no perceptible teeth. 1981 Jrnl. Vertebr. Palaeontol. 1 236/1 All other cryptodonts are from the Late Permian of South Africa, Zambia, and Tanzania. 2. Any of various chiefly extinct bivalve molluscs constituting the subclass or superorder Cryptodonta, the shells of which have no hinge teeth.The Cryptodonta comprise the Palaeozoic order Praecardioida and the extant order Solemyoida, though the latter is now often placed in a different subclass. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [noun] > miscellaneous types > other types of mollusc squame1393 shell-worm1591 spout-fish1594 pentadactyl1601 sea cucumber1601 pirot1611 worm1621 nun-fish1661 scarlet mussel1672 sea-navel1678 redcap?1711 strawberry cockle1713 sea-finger1748 sea-nail1748 sea-acorn1755 coneya1757 compass1776 bubble shell1818 glass-shell1851 golden comb1857 cryptodont1893 nuculoid1960 1893 N.E.D. at Crypto- Cryptodont a. or sb., having the teeth concealed or suppressed; applied to certain palæozoic bivalve molluscs. 1898 Jrnl. Royal Miscrosc. Soc. 1898 298 Phylogeny of Lamellibranchs.—H. Douville adopts Neumayr's classification:—Taxodonts, Dysodonts, Desmodonts, Heterodonts, and the imperfectly known Cryptodonts. 1969 R. C. Moore et al. Treat. Invertebr. Paleontol.: Part N I. 115/1 Of the cryoptodonts, Edmondia and Sanguinolites are unrepresented in the Triassic. 2000 Jrnl. Paleontol. 74 600/1 The hypothesis of halobioids as cryptodonts is not supported either by ligament features..or by the lack of taxodont dentition. B. adj. †1. Designating the family Cryptodontidae of reptiles; relating or belonging to this family Obsolete. rare. ΚΠ 1861 W. S. Symonds Old Bones iii. 82 The Rhynchosaurus (beaked lizard)..belongs to..the Cryptodont family of Owen; so called from the animals which compose it being edentulous, or possessing inconspicuous teeth. 1883 Ogilvie's Imperial Dict. (new ed.) III. 333/2 Oudenodon, a genus of fossil cryptodont reptiles, that is, reptiles whose teeth are either concealed or absent. 2. Of or relating to the subclass or superorder Cryptodonta of molluscs. ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > phylum Mollusca > [adjective] > of types of > belonging to other groups of encephalous1851 rhipidoglossate1869 cephalous1874 thecosomatous1878 rhipidoglossan1882 schizodinic1883 cryptodont1889 odontophoran1890 marginellid1917 1889 Cent. Dict. 1380/2 Cryptodont, having concealed teeth, or not known to have teeth; specifically, pertaining to the Cryptodonta or Cryptodontia. 1953 Jrnl. Palaeontol. 27 776/1 The cryptodont classification of Zalanyi appears to apply only to immature shells, in which the hinge structure is weak and primitive. 2000 Palaios 15 172/2 What they are comparing is two of the better known Silurian cryptodont genera, Cardiola and Slava, with several Upper Cretaceous inoceramid genera. This entry has been updated (OED Third Edition, June 2011; most recently modified version published online March 2022). < n.adj.1860
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