| 词条 | Requienia (bivalve) |
| 释义 |
| image = Rudista - Requienia ammonia.JPG | image_width = 250px | image_caption =Requienia ammonia from Cretaceous of France | fossil_range = {{fossil range|Cretaceous}} | regnum = Animalia | phylum = Mollusca | classis = Bivalvia | subclassis = Heterodonta | ordo = Hippuritoida | familia = Requieniidae | genus = Requienia | genus_authority = Zakhera 2011 }} Requienia is an extinct genus of fossil saltwater clam, a marine bivalve molluscs in the order Hippuritoida, family Requieniidae. These rudists lived in the Cretaceous period, from the Valanginian age (136.4–140.2) to the Campanian age (70.6–83.5 mya). They were stationary intermediate-level suspension feeders. DistributionThis genus occurs in the Cretaceous of Albania (collection), Croatia, France, Germany, Hungary, Iraq, Italy, Mexico, Oman, Portugal, Serbia and Montenegro, Spain, Switzerland, Turkey, Ukraine, United States, Venezuela; Jurassic of Hungary. Species
References
4 : Prehistoric bivalve genera|Valanginian first appearances|Campanian extinctions|Hippuritoida |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。