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Benton, M.J. (1998) "The quality of the fossil record of the vertebrates" Archived 25 August 2012 at the Wayback Machine Pages 269–303 in Donovan, S.K. and Paul, C.R.C. (eds), The adequacy of the fossil record. Wiley. ISBN 9780471969884. Cloutier, R. (2010). "The fossil record of fish ontogenies: Insights into developmental patterns and ...
The oldest identified coelacanth fossils are around 420–410 million years old, dating to the early Devonian. [ 1 ] [ 48 ] Coelacanths were never a diverse group in comparison to other groups of fish, and reached a peak diversity during the Early Triassic (252–247 million years ago), [ 49 ] coinciding with a burst of diversification between ...
Amphistium is a 50-million-year-old fossil fish that has been identified as an early relative of the flatfish, and as a transitional fossil. [119] In a typical modern flatfish, the head is asymmetric with both eyes on one side of the head.
9-million-year-old marine fossils found beneath California high school during construction. Caitlin McCormack. ... mostly fish, but also sea mammals, sea turtles, shorebirds, ...
It is representative of the transition between non-tetrapod vertebrates (fish) such as Panderichthys, known from fossils 380 million years old, and early tetrapods such as Acanthostega and Ichthyostega, known from fossils about 365 million years old. Its mixture of primitive fish and derived tetrapod characteristics led one of its discoverers ...
They were also the first fish clade to develop pelvic fins, the second set of paired fins and the homologous precursor to hindlimbs in tetrapods. [2] 380-million-year-old fossils of three other genera, Incisoscutum, Materpiscis and Austroptyctodus, represent the oldest known examples of live birth. [3]
The study of prehistoric fish is called paleoichthyology. A few living forms, such as the coelacanth are also referred to as prehistoric fish, or even living fossils, due to their current rarity and similarity to extinct forms. Fish which have become recently extinct are not usually referred to as prehistoric fish.
Specimens are sometimes considered to be fossils if they are over 10,000 years old. [6] [7] [8] ... Eocene fossil fish Priscacara liops from the Green River Formation ...