象牙貝屬

象牙貝屬（學名：Dentalium），又名角貝屬，是象牙貝科下的一個屬，為掘足綱動物的代表。其化石最早可追溯至志留紀晚期。牠們生存在不同深度及溫度的海洋中^[2]，在海底泥砂中行穴居生活，利用觸手將食物碎屑送入口中。

提示：此条目的主题不是Striodentalium。

象牙貝屬 化石时期：志留紀 - 現今 PreЄ Є O S D C P T J K Pg N
Dentalium octangulatum Donovan, 1804
科学分类
界：	动物界 Animalia
门：	軟體動物門 Mollusca
纲：	掘足綱 Scaphopoda
目：	象牙貝目 Dentaliida
科：	象牙貝科 Dentaliidae
属：	象牙貝屬 Dentalium Linnaeus, 1758[1]
物種
50種，見內文

特徵

牠們有著窄小的象牙形圓管狀貝殼，殼表有線條分明的縱肋。殼體朝尖端彎曲且逐漸變細，殼形會隨著年齡增長而慢慢變直。頭部、頭絲和足由較大的前殼口伸出。^[2]

物種

現生種[3][4][5]

• Dentalium aciculum Gould, 1859
• Dentalium adenense Ludbrook, 1954
• Dentalium agassizi Pilsbry and Sharp, 1897 Stained tuskshell
• Dentalium americanum Chenu, 1843 American tuskshell
• Dentalium antillarum D'Orbigny, 1842
• Dentalium aprinum L., 1766
• Dentalium bartletti Henderson, 1920
• Dentalium calamus Dall, 1889
• Dentalium callipeplum Dall, 1889
• Dentalium callithrix Dall, 1889
• Dentalium carduum Dall, 1889
• Dentalium ceratum (Dall, 1881)
• Dentalium circumcinctum Watson, 1879
• Dentalium dalli Pilsbry & Sharp, 1897
• Dentalium dentale L., 1766 European tusk
• Dentalium diarrhox（英语：Dentalium diarrhox） Watson, 1879
• Dentalium didymum Watson, 1879
• Dentalium eboreum Conrad, 1846 Ivory tusk
• Dentalium ecostatum（英语：Dentalium ecostatum） T W Kirk, 1880
• Dentalium elephantinum（英语：Dentalium elephantinum） L., 1758 - Elephant tusk
• Dentalium ensiculus Jeffereys, 1877
• Dentalium entale entale (Linnaeus, 1758)
• Dentalium entale stimpsoni (Henderson, 1920)
• Dentalium entale Linnaeus, 1758
• Dentalium floridense J. B. Henderson, 1920
• Dentalium formosum Adams & Reeve, 1850 Formosan tusk
• Dentalium glaucarena（英语：Dentalium glaucarena） Dell, 1953
• Dentalium gouldii（英语：Dentalium gouldii） Dall, 1889 Gould tuskshell
• Dentalium inversum Deshayes, 1825
• Dentalium laqueatum A. E. Verrill, 1885 Reticulate tuskshell
• Dentalium liodon Pilsbry & Sharp, 1897
• Dentalium longitrorsum（英语：Dentalium longitrorsum） Reeve, 1842 Elongate tusk
• Dentalium meridionale Pilsbry & Sharp, 1897
• Dentalium nanum（英语：Dentalium nanum） Hutton, 1873
• Dentalium neohexagonum（英语：Dentalium neohexagonum） Sharp & Pilsbry, 1897 Hexagon tuskshell
• Dentalium occidentale Stimpson, 1851
• Dentalium octangulatum Donovan, 1804 Octagonal tusk
• Dentalium ophiodon Dall, 1881
• Dentalium perlongum Dall, 1881
• Dentalium pilsbryi Rehder, 1942
• Dentalium pretiosum Sowerby, 1860 Indian-money tusk
• Dentalium rebeccaense Henderson, 1920
• Dentalium rectius Carpenter, 1864
• Dentalium semistriolatum Guilding, 1834 Half-scratched tusk
• Dentalium senegalense Dautzenberg, 1891 Senegal tusk
• Dentalium sowerbyi Guilding, 1834
• Dentalium stenochizum Pilsbry and Sharp, 1897
• Dentalium suteri（英语：Dentalium suteri） Emerson, 1954
• Dentalium taphrium Dall, 1889
• Dentalium texasianum Philippi, 1848
• Dentalium tiwhana（英语：Dentalium tiwhana） Dell, 1953
• Dentalium tubulatum Henderson, 1920
• Dentalium vallicolens Raymond, 1904 Trench tuskshell
• Dentalium vernedei Sowerby, 1860l Vernede's tusk
• Dentalium vitreum Sars, 1851
• Dentalium vulgare da Costa, 1778 Common tusk
• Dentalium zelandicum（英语：Dentalium zelandicum） Sowerby, 1860 New Zealand tusk

化石種[6]

• †Dentalium akasakensis Hayasaka 1925
• †Dentalium alazanum Cooke 1928
• †Dentalium angsananum Martin 1922
• †Dentalium aratum Tate 1887
• †Dentalium arcotinum Forbes 1846
• †Dentalium atratum Tate 1887
• †Dentalium attenuatum Say 1824
• †Dentalium badense Partsch, 1856
• †Dentalium bifrons Tate 1887
• †Dentalium bocasense Olsson 1922
• †Dentalium caduloide Dall 1892
• †Dentalium cannaliculatum Klipstein 1843
• †Dentalium cossmannianum Pilsbry and Sharp 1897
• †Dentalium danai Meyer 1885
• †Dentalium decoratum Münster 1841
• †Dentalium denotatum Ludbrook 1956
• †Dentalium giganteum Sowerby 1846
• †Dentalium gonatodes Martin 1885
• †Dentalium hamatum Forbes 1846
• †Dentalium hanguense Cox 1930
• †Dentalium hecetaensis Rohr et al. 2006
• †Dentalium inaequale Bronn 1831
• †Dentalium indianum Girty 1911
• †Dentalium junghuhni Martin 1879
• †Dentalium klipsteini Kittl 1891
• †Dentalium latisulcatum Tate 1899
• †Dentalium lombardicum Kittl 1899
• †Dentalium mancorens Olsson 1930
• †Dentalium microstria Heilprin 1880
• †Dentalium montense Briart and Cornet 1889
• †Dentalium moreanum d'Orbigny 1845
• †Dentalium neohexagonum Sharp and Pilsbry 1897
• †Dentalium neornatum Hayasaka 1925
• †Dentalium ovale Cooke 1928
• †Dentalium pseudonyma Pilsbry and Sharp 1898
• †Dentalium rimosum Bose 1906
• †Dentalium rugiferum von Koenen 1885
• †Dentalium sandbergeri Cossmann and Lambert 1884
• †Dentalium schencki Moore 1963
• †Dentalium sexangulum (Gmelin, 1790)
• †Dentalium simile Münster 1841
• †Dentalium solidum Hutton 1873
• †Dentalium sorbii King 1850
• †Dentalium speyeri Geinitz 1852
• †Dentalium sundkrogensis Schnetler 2001
• †Dentalium tenuistriatum Martin 1879
• †Dentalium tornatissimum Tate 1899
• †Dentalium triquetrum Tate 1887
• †Dentalium yasilum Olsson 1930

圖片

• 
  上新世的Dentalium sexangulum化石
• 
  中新世的Dentalium badense化石
• 
  上新世的Dentalium species化石
• 
  Dentalium entale（圖上）及Dentalium vulgare（圖下）
• 
  於威爾瓦發現的象牙貝化石

參考文獻

1. Fossilworks: Dentalium. [2018-04-18]. （原始内容存档于2017-11-07） （英语）.
2. Walker, Cyril（英语：Cyril Walker (palaeontologist)）; Ward, David. Fossils. Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 114. ISBN 0789489848.
3. Catalogue of life. [2018-04-18]. （原始内容存档于2016-04-20）.
4. ITIS. [2018-04-18]. （原始内容存档于2016-04-19）.
5. Animal Diversity. [2018-04-18]. （原始内容存档于2008-09-07）.
6. Paleobiology Database. [2018-04-18]. （原始内容存档于2020-04-13）.

外部連結

• Dentalium in the Paleobiology Database（英语：Paleobiology Database）