Astieridiscus
{{Short description|Genus of molluscs (fossil)}}
{{Automatic taxobox
|fossil_range = {{fossil range|Barremian|ref={{cite web
| last = Sepkoski| first = Jack| title= Sepkoski's Online Genus Database|author-link =| year = 2002| url = http://strata.geology.wisc.edu/jack/showgenera.php?taxon=231&rank=class| accessdate = 2014-05-28 }}}}
|image = Asteridiscus cadoceroides (Karakasch) Barremian, Razgrad (Coll. V. Tzankov) at the Sofia University 'St. Kliment Ohridski' Museum of Paleontology and Historical Geology.jpg
|image_caption = Astieridiscus cadoceroides (Karakasch) Barremian, Razgrad, (Coll. V. Tzankov) at the Sofia University Museum of Paleontology and Historical Geology
|taxon = Astieridiscus
|authority =Kilian, 1910
}}
Astieridiscus is an extinct lower Cretaceous ammonite. Its shell evolute, covered by dense, simple or branching, slightly flexuous ribs. The sides are slightly flattened, the venter rounded. No umbilical or other tubercles except on innermost whorl. Superficially resembles Olcostephanus.[https://www.worldcat.org/oclc/61988855 Wright, C. W. with J.H. Callomon and M.K. Howarth (1996), Mollusca 4 Revised, Cretaceous Ammonoidea, vol. 4], in Treatise on Invertebrate Paleontology, Part L (Roger L. Kaesler ed.), Boulder, Colorado: The Geological Society of America & Lawrence, Kansas: University of Kansas Press, p.48.
Notes
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External links
- {{cite web |title=Astieridiscus |publisher=Paleobiology Database |url= https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=14590|accessdate= 30 December 2021}}
- {{cite web |title=Asteriediscus |publisher= Encyclopedia of Life (EOL)|url= https://eol.org/pages/47427096 |accessdate= 30 December 2021}}
- {{Cite book |last= Wright |first= Claud William; with John Hannes Callomon and M.K. Howarth |year=1996 |title= Mollusca 4 Revised, Cretaceous Ammonoidea in Treatise on Invertebrate Paleontology Part L |editor = Roger L. Kaesler |publisher= The Geological Society of America & University of Kansas Press|place= Boulder, Colorado and Lawrence, Kansas |url=https://archive.org/details/treatiseoninvert0000join/page/n3/mode/2up?view=theater |url-access= registration |page=[https://archive.org/details/treatiseoninvert0000join/page/48/mode/2up?view=theater 48]}}
- {{cite book |author1= Arkell, W. J. |author2= Furnish, W. M. |author3= Kummel, Bernhard |author4= Miller, A.K. |author5= Moore, R.C. |author6= Schindewolf, O.H. |year= 1957 |chapter= Part L, Mollusca 4: Cephalopoda, Ammonoidea |title= Treatise on Invertebrate Paleontology |publisher= Geological Society of America and University of Kansas Press |editor= Raymond C. Moore |editor-link= Raymond Cecil Moore |url= https://archive.org/details/treatiseoninvert0000unse_n4o3/page/n3/mode/2up?view=theater |url-access= registration |page= [https://archive.org/details/treatiseoninvert0000unse_n4o3/page/372/mode/2up?view=theater L372] |via= Internet Archive}}
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