| 词条 | Schlotheimia |
| 释义 |
{{italic title}} {{Taxobox| fossil_range = Jurassic, {{fossil range|201.6|189.6}}[1] | image = Schlotheimiidae - Schlotheimia depressa.JPG | image_width = 250px | image_caption = Schlotheimia depressa from Germany | regnum = Animalia | phylum = Mollusca | classis = Cephalopoda | subclassis = Ammonoidea | ordo = Ammonitida | superfamilia = Psiloceratoidea | familia = Schlotheimiidae | genus = Schlotheimia | genus_authority = Bayle, 1878 | synonyms =
}}Schlotheimia is a genus of extinct cephalopods belonging to the subclass Ammonoidea that lived during the Hettangian stage at the beginning of the Early Jurassic.[2] DescriptionThe shell, or conch, of Schlotheimia rather evolute, coiled with all whorls exposed and only slightly embracing. The umbilicus is perforate as with more finely ribbed Angulaticeras. whorls are compressed, bearing ribs that cross the venter in chevrons, less developed in Sulciferites DistributionFossils of Schlotheimia species have been found in Lower Jurassic rocks of Argentina, Austria, Belgium, Canada, France, Germany, Indonesia, Italy, Luxembourg, Switzerland, United Kingdom, United States.[1] References1. ^1 The Paleobiology Database 2. ^Jack Sepkoski's list of Cephalopod general Further reading
11 : Schlotheimiidae|Ammonitida genera|Jurassic ammonites|Ammonites of Asia|Jurassic Asia|Jurassic Europe|Ammonites of North America|Jurassic Canada|Jurassic United States|Ammonites of South America|Jurassic Argentina |
| 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。