3-624: See text Graphoceratidae is an extinct family of ammonites in the order Ammonitida , which lived during the Jurassic . Fossils are found in the Jurassic marine strata of Canada , France , Germany , Hungary , Italy , Morocco , Saudi Arabia , Spain and the United Kingdom . Subfamily Graphoceratinae Buckman, 1905 Subfamily Leioceratinae Spath, 1936 Subfamily Dumortieriinae Haug, 1885 Subfamily Tmetoceratinae Spath, 1936 This Ammonitina -related article
6-456: Is a stub . You can help Misplaced Pages by expanding it . Ammonitida Ammonitida or "True ammonites" are an order of ammonoid cephalopods that lived from the Jurassic through Paleocene time periods, commonly with intricate ammonitic sutures . Ammonitida is divided into four suborders, the Phylloceratina , Lytoceratina , Ancyloceratina , and Ammonitina . The Phylloceratina
9-815: Is the ancestral stock, derived from the Ceratitida near the end of the Triassic . The Phylloceratina gave rise to the Lytoceratina near the beginning of the Jurassic which in turn gave rise to the highly specialized Ancyloceratina near the end of the Jurassic. Both the Phylloceratina and Lytoceratina gave rise to various stocks combined in the Ammonitina. These four suborders are further divided into different stocks, comprising various families combined into superfamilies. Some like
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