| 词条 | Mesohedenstroemia |
| 释义 |
|name = Ammonitoceras |status = fossil |fossil_range = {{fossil range|252.3|247.2|ref=[1] }} |regnum = Animalia |phylum = Mollusca |classis = Cephalopoda |subclassis = Ammonoidea |familia = Hedenstroemiidae |genus = Mesohedenstroemia |genus_authority = Chao, 1959 |subdivision_ranks = Species [1] |subdivision =
| synonyms = }}Mesohedenstroemia is a genus of ammonites. It was described by Chao in 1959, who described three species; M. kwangsiana (the type species), M. inflata Chao, 1959, and M. planata, from the Triassic of what is now China. A new species, M. olgae, was described from the Olenekian of Russia by Yuri D. Zakharov and Nasrin Mousavi Abnavi in 2012, and was named in honour of Olga P. Smyshyaeva.[1] DistributionChina and Russia[2] References1. ^{{Cite journal|author=Yuri D. Zakharov and Nasrin Mousavi Abnavi |year=2012 |title=The ammonoid recovery after the end-Permian mass extinction: evidence from the Iran-Transcaucasia area, Siberia, Primorye, and Kazakhstan |journal=Acta Palaeontologica Polonica |volume=In press |issue= |pages= |url=http://app.pan.pl/article/item/app20110054.html |doi=10.4202/app.2011.0054 }} {{Taxonbar|from=Q6821507}}{{Ceratitida-stub}}2. ^1 2 {{cite web | title= Paleobiology Database - Mesohedenstroemia |authorlink =| coauthors = | year = | url = http://fossilworks.org/bridge.pl?a=taxonInfo&taxon_no=169613 | accessdate = 2014-06-23}} 3 : Hedenstroemiidae|Triassic ammonites|Ceratitida genera |
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