Carboniferous Sharks - Smithsonian Ocean
Carboniferous Sharks. The first creatures with backbones emerged during the Paleozoic Era. Here, the shark (Edestus heinrichi) pursues its prey (Iniopera richardsoni). Stethacanthus altonensis, the shark with the unusually shaped dorsal fin, glides among the sea lilies below.
A Golden Age of Sharks - elasmo-research.org
The first major shark radiation occurred during the Carboniferous Period, 360 to 286 million years ago. The Carboniferous (meaning "coal forming") gets its name from the thick layer of plant matter, laid down when shallow seas drowned northern continents, that …
Pictures and Profiles of Prehistoric Sharks - ThoughtCo
2017年3月17日 · Pictures and detailed profiles of over a dozen prehistoric sharks, ranging from Cladoselache to Xenacanthus.
10 Bizarre Beasts That Roamed the Carboniferous Waters
2023年12月9日 · The Carboniferous Period is often referred to as the "Golden Age of Sharks." These animals had branched off into many diverse and bizarre groups, becoming the oceans' top predators. 20-foot-long fish terrorized freshwater lakes, and soft-bodied creatures that looked like aliens were abundant too.
Carboniferous - Wikipedia
Many fish inhabited the Carboniferous seas; predominantly Elasmobranchs (sharks and their relatives). These included some, like Psammodus, with crushing pavement-like teeth adapted for grinding the shells of brachiopods, crustaceans, and other marine organisms.
Category:Carboniferous sharks - Wikipedia
Pages in category "Carboniferous sharks". The following 4 pages are in this category, out of 4 total. This list may not reflect recent changes.
A Timeline Of Shark Evolution - Shark Sider
The Carboniferous Era: The Golden Age Of Sharks. The Carboniferous Era began around 360 million years ago. It was during this time that sharks dominated the oceans. Sharks also split into many subspecies including rays, skates, and chimaeras. Sharks had incredibly diverse physiognomy during the Carboniferous age.
A Chance Discovery Reveals a Rich Fossil Shark Record From the ...
The Surprise Canyon Formation has a rich chondrichthyan assemblage with 31 taxa including the eel-like Thrinacodus gracia, early stem chondrichthyans known as the symmoriids which have unique shaped dorsal spines, hybodont sharks, neoselachians (members of the modern sharks and rays lineage), one of the oldest member of the whorl toothed ...
The History of Life on Earth - ThoughtCo
2018年1月5日 · The Carboniferous Period was a time when the first of many animal groups evolved: the first true bony fishes, the first sharks, the first amphibians, and the first amniotes. The appearance of the amniotes is evolutionarily significant because of the amniotic egg, the defining characteristic of amniotes, enabled the ancestors of modern reptiles ...
Diplodoselache woodi gen. et sp. nov., an early Carboniferous shark ...
2011年11月3日 · A new fossil elasmobranch from the Lower Carboniferous Oil Shale groups (Viséan) of the Edinburgh area shows a mosaic of characters typical of at least two groups of early sharks. Its most distinctive feature is the small bicuspid teeth of “ Diplodus ” type.