Pachycormiformes are generally interpreted as basal members of Teleosteomorpha, the group that includes all fish more closely related to modern teleosts than to Holostei (the group containing bowfin and gars), often they have been…
Pachycormus (from Greek: παχύς pakhús, 'thick' and Greek: κορμός kormós 'trunk') [1 ] is an extinct genus of pachycormiform ray-finned fish known from the Early Jurassic (Toarcian stage) of Europe.
Download scientific diagram | Bonnerichthys and generically indeterminate pachycormiform material from the Pierre Shale Group of the Western Interior Seaway. A–D, UNSM 88507, Sharon Springs Formation (middle Campanian), Harlan County…
Extrémně rychle se diverzifikovali ptáci. V mořích došlo k diverzifikaci paprskoploutvých ryb, které ovládly otevřený oceán i obnovující se ekosystémy korálových útesů.