Grammoceras is an extinct genus of ammonite found in Yorks Ravenscar, England, from Jurassic period sediments. Its overall distribution is fairly worldwide...
2 KB (138 words) - 17:10, 20 December 2023
sediments of the Mistelgau fossil pit of the lower Jurensismergel Formation (Grammoceras thouarsense Zone) in Bayreuth District, Bavaria, Germany. The holotype...
5 KB (265 words) - 14:03, 23 March 2024
hildoceratid family, subfamily Grammoceratinae. Related genera include such as Grammoceras, Costigrammoceras, and Phenakocerites Yakounia in Paleobiology Database...
2 KB (121 words) - 18:47, 13 April 2021
Dumortieria pseudoradiosa zone of Phlyseogrammoceras dispansum zone of Grammoceras thouarcense zone of Haugia variabilis zone of Hildoceras bifrons zone...
7 KB (617 words) - 19:59, 4 March 2024
Sonniniidae and may be a subgenus of the Lower Jurassic (Upper Toarcian) Grammoceras. Sepkoski, Jack (2002). "A compendium of fossil marine animal genera...
2 KB (109 words) - 18:39, 13 April 2021
Hungary, Iran, Italy, Spain and Tunisia. Dumortiera are rather similar to Grammoceras and Catulloceras from the same age, having a thin, discoidally evolute...
3 KB (199 words) - 09:42, 17 June 2023
Gonionotites Gonolkites Goodhallites Gracilisphinctes Gracilites Grambergia Grammoceras Grandidiericeras Graphoceras Gravesia Grayiceras Graysonites Gregoryceras...
65 KB (2,780 words) - 20:33, 4 September 2024