戟貝屬
戟貝屬（學名：）是戟貝科Chonetinae亞科下已滅絕的一個屬，生存於晚奧陶紀至中侏羅紀，生活在海底鬆軟的石灰泥基層上。[1]
| 戟贝属 化石时期：晚奧陶紀–中侏羅紀 | |
|---|---|
 | |
| Chonetes gracilis | |
科学分类  | |
| 界： | 动物界 Animalia |
| 门： | 腕足動物門 Brachiopoda |
| 纲： | †扭月貝綱 Strophomenata |
| 目： | †長身貝目 Productida |
| 科： | †戟贝科 Chonetidae |
| 亚科： | †戟贝亚科 Chonetinae |
| 属： | †戟贝属 Chonetes Fischer de Waldheim, 1830 |
| 種 | |
|
見內文 | |
特徵
這類腕足動物的體型相對較小，殼的外廓為半圓形並有長長的鉸鍊，鉸鍊延伸形成耳狀骨。腳狀瓣凸起，臂狀瓣從扁平到微凹入的均有。其內部的牙與眼窩很不發達。腳狀瓣上有一條薄薄的隔膜位於中間，沿著明顯的兩裂片肌肉瘢痕生長著。臂狀瓣也有一條位於中間的隔膜，分為前後兩個肌肉瘢痕。兩瓣均有凹痕，其狹窄的中間地帶長有翅脈和很小的殼針。[1]
物種[2]
- Chonetes (Paeckelmannia)
- Chonetes baragwanathi Gill, 1949
- Chonetes burlingtonensis Weller, 1901
- Chonetes chamishkjensis Licharew, 1937
- Chonetes chaoi Licharew, 1937
- Chonetes cherokeensis Snider, 1915
- Chonetes chesterensis Weller, 1914
- Chonetes compressa Waagen, 1884
- Chonetes concentrica von Semenow, 1854
- Chonetes concentricus Davidson, 1863
- Chonetes deliciasensis King, 1931
- Chonetes flemingi Norwood and Pratten, 1855
- Chonetes foedus Talent, 1963
- Chonetes foshagi Cooper, 1953
- Chonetes geniculata White, 1862
- Chonetes glabra Geinitz, 1866
- Chonetes glenparkensis Weller, 1906
- Chonetes gregarius Weller, 1901
- Chonetes illinoisensis Worthen, 1860
- Chonetes logani Norwood & Pratten, 1855
- Chonetes mesoloba Norwood & Pratten, 1855
- Chonetes missouriensis Weller, 1914
- Chonetes moelleri Tschernyschew, 1902
- Chonetes monosensis Cooper, 1953
- Chonetes multicosta Winchell, 1863
- Chonetes obtusa Schellwien, 1892
- Chonetes oklahomensis Snider, 1915
- Chonetes ornata Shumard, 1855
- Chonetes pinegensis Kulikov, 2000
- Chonetes planumbona Meek & Worthen, 1860
- Chonetes posturalicus Ustritsky, 1963
- Chonetes pygmoideus Cooper 1957
- Chonetes rarispina Schellwien, 1892
- Chonetes semiovalis Waagen, 1884
- Chonetes shumardiana De Koninck, 1847
- Chonetes sichuanensis Zeng & al., 1995
- Chonetes sinuatus Krotow, 1885
- Chonetes squama Waagen, 1884
- Chonetes suavis Talent, 1963
- Chonetes timanica Tschernyschew, 1902
- Chonetes variolaris Keyserling, 1846
參考文獻
- Walker, Cyril; Ward, David. . Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 83. ISBN 0789489848.
- . [2018-01-24] （英语）.
外部連結
- Chonetes in the Paleobiology Database
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