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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 ...
There are substantial fossil records of jawed fishes across the K–T boundary, which provides good evidence of extinction patterns of these classes of marine vertebrates. Within cartilaginous fish , approximately 80% of the sharks , rays , and skates families survived the extinction event, [ 114 ] and more than 90% of teleost fish (bony fish ...
The fossil record shows aspects of the meandering evolutionary path from early aquatic vertebrates to modern fish as well as mammals, birds, reptiles and amphibians, with a host of transitional fossils, though there are still large blank areas.
The findings shed new light into the preservation of soft parts in fossils of backboned animals. ‘Ancient fish fossil reveals oldest example of well-preserved vertebrate brain’ Skip to main ...
Agnatha (/ ˈ æ ɡ n ə θ ə, æ ɡ ˈ n eɪ θ ə /; [3] from Ancient Greek ἀ-(a-) 'without' and γνάθος (gnáthos) 'jaws') is a paraphyletic infraphylum [4] of non-gnathostome vertebrates, or jawless fish, in the phylum Chordata, subphylum Vertebrata, consisting of both living (cyclostomes) and extinct (conodonts, anaspids, and ostracoderms, among others).
These scales were easily dispersed after death; their small size and resilience makes them the most common vertebrate fossil of their time. [14] [15] The fish lived in both freshwater and marine environments, first appearing during the Ordovician, and perishing during the Frasnian–Famennian extinction event of the Late Devonian. They were ...
In Late Devonian vertebrate speciation, descendants of pelagic lobe-finned fish such as Eusthenopteron exhibited a sequence of adaptations: Panderichthys, suited to muddy shallows; Tiktaalik with limb-like fins that could take it onto land; early tetrapods in weed-filled swamps, such as Acanthostega, which had feet with eight digits, and Ichthyostega, which had limbs.
The fossil record of early tetrapods shows evidence of distinct pelvic development occurring in osteolepiforms, further supporting osteolepiform ancestry of terrestrial tetrapods. [4] Acanthostega has a large pelvis, with the iliac region articulating with the axial skeleton and a broad ischial plate. [3]