新生角石(學名:Cenoceras),又名新角石、空角石,是一屬已滅絕的鸚鵡螺類。牠們生活在中生代的海洋中,以觸手捕食小動物。[1]
特徵
新生角石的殼形為內捲式,核心狹窄。旋環增加得很快。腹又寬又圓。縫合線很密並微彎。住室約占旋環的一半。從切面來看,內部的眾多殼室為凹凸狀,半部邊緣有一巨大的體管。[1]
物種[2]
- Cenoceras (Cenoceras)
- Cenoceras (Metacenoceras)
- Cenoceras adneticus
- Cenoceras affinis
- Cenoceras altisiphites
- Cenoceras amorettii
- Cenoceras annulare
- Cenoceras arare
- Cenoceras arariformis
- Cenoceras aratus
- Cenoceras astacoides
- Cenoceras austriacus
- Cenoceras baberi
- Cenoceras baconicus
- Cenoceras balsamocrivellii
- Cenoceras belmontense
- Cenoceras boreale
- Cenoceras bradfordense
- Cenoceras brancoi
- Cenoceras breislacki
- Cenoceras chilensis
- Cenoceras ciryi
- Cenoceras demonensis
- Cenoceras distefanoi
- Cenoceras domeykus
- Cenoceras egregius
- Cenoceras erycinus
- Cenoceras excavatus
- Cenoceras exterebratus
- Cenoceras fischeranus
- Cenoceras foordi
- Cenoceras geyeri
- Cenoceras imlayi
- Cenoceras impendens
- 中間型空角石 Cenoceras intermedium
- Cenoceras jourdani
- Cenoceras julianus
- Cenoceras lineatum
- Cenoceras lineolatum
- Cenoceras lupheri
- Cenoceras majesticum
- Cenoceras malherbii
- Cenoceras mariani
- Cenoceras marii
- Cenoceras mazardrikense
- Cenoceras mazzarensis
- Cenoceras meyrati
- Cenoceras multiseptatum
- Cenoceras obesum
- Cenoceras obstructum
- Cenoceras ornatum
- Cenoceras paretoi
- Cenoceras perornatus
- Cenoceras pertextum
- Cenoceras pisanus
- Cenoceras profundisiphites
- Cenoceras pseudorugosus
- Cenoceras pseudotruncatum
- Cenoceras quadrangularis
- Cenoceras rotundum
- Cenoceras rugosus
- Cenoceras schmidti
- Cenoceras secernendus
- Cenoceras semiornatus
- Cenoceras semistriatum
- Cenoceras semseyi
- Cenoceras simillimum
- Cenoceras smithi
- Cenoceras spreaficoi
- Cenoceras stoppanii
- Cenoceras striatum
- Cenoceras sturi
- Cenoceras thiollieri
- Cenoceras thyrrenus
- Cenoceras toarcense
- Cenoceras trechmanni
- Cenoceras tricarinatus
- Cenoceras truncatus
- Cenoceras zignoi
參考文獻
- Walker, Cyril; Ward, David. Fossils. Smithsonian Handbooks revised, illustrated. Dorling Kindersley. 2002: 138. ISBN 0789489848.
- Fossilworks: Cenoceras. [2018-05-13]. (原始内容存档于2021-12-16) (英语).
外部連結
- Cenoceras in the Paleobiology Database
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