WebThis page was last edited on 20 August 2024, at 11:53. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply.By ... WebSphenodiscus is an ammonite genus that appeared near the end of the Cretaceous Period. It was widespread in the last 5 million years of that period – known from North America, Brazil, Europe, Jordan, and Nigeria. Here’s a cool little Sphenodiscus with the mother-of-pearl shell layer still present.

Sphenodiscus lenticularis - Ammonoids - The Fossil Forum

WebNov 16, 2015 · The sphenodiscids, however, are highly fragmented; only 1 of the 11 collected specimens was more than 50% complete. Epizoans are rare, occurring on less … WebSphenodiscus is an ammonite genus that appeared near the end of the Cretaceous Period. It was widespread in the last 5 million years of that period – known from North America, … scotland vs ireland rugby match

The Last Cretaceous Ammonites in Latin America - BioOne …

WebThe Maastrichtian ammonites Coahuilites sheltoni Böse, 1928, and Sphenodiscus pleurisepta (Conrad, 1857), from the uppermost Pierre shale and basal Fox Hills formation of Colorado and Wyoming. American Museum novitates ; no. 3186 . By. Cobban, William Aubrey, 1916- Kennedy, W. J. (William James) Landman, Neil H. WebSphenodiscus sp.Fox Hill Formation，late Cretaceus。アラゴナイト質の殻が残りオパールの様な虹色を呈するアンモナイト化石で、色調は赤と補色の緑が混在。一部の殻が薄い部分では縫合線が透けて見え、さらに殻が厚い後部の両側で殻の構造と思われる皺状の構造が見られます するアンモ アンティーク ... WebPseudis. See text. Pseudis is a genus of South American frogs ( swimming frogs) in the family Hylidae. [1] They are often common and frequently heard, but easily overlooked … scotland vs ireland rugby live