What evolution progression???? They are already arguing against Tiktaalik and have been... You all just have no clue as to what is occurring.... Tiktaalik is on its way to dethronement....
View attachment 243118
https://evolutionnews.org/2008/09/the_rise_and_fall_of_tiktaalik/
"The latest retroactive confessions of evolutionist ignorance comes on the heels of a published re-analysis of the bones of
Panderichthys. The study used CT scans to show
Panderichthys apparently had a few well-defined radial bones in its pectoral fins. (Radial bones are found only in fish fins, but evolutionary paleontologists contend that radial bones are homologous to digits in tetrapod limbs.) When commenting on this new find, the paper’s lead author, Catherine A. Boisvert, boasted in an interview with
The Scientist that “it is now completely proven that fingers have evolved from distal radials already present in fish that gave rise to the tetrapod.” Boisvert also praised her findings, stating: “The disposition of distal radials in
Panderichthys are much more tetrapod-like than in
Tiktaalik.”"
"Confident that
Panderichthys fossil showed evolution better than
Tiktaalik, Darwinists then proceeded to admit striking criticisms of
Tiktaalik:
The Scientist article stated, “Previous data from another ancient fish called
Tiktaalik showed distal radials as well —
although the quality of that specimen was poor. And the orientation of the radials did not seem to match the way modern fingers and toes radiate from a joint, parallel to each other.” (emphasis added)"
"The “quality” of
Tiktaalik as a fossil specimen was “poor”? When did we see evolutionists admit this previously? Never. They wouldn’t dare make such admissions until they thought they had something better."
"Michael Coates, an evolutionary biologist at the University of Chicago, called the new findings “intriguing” but is not convinced that the digit-like structures in Panderichthys’s fin are the equivalent of our fingers.
For one thing, they seem unusually flat for radial bones, Coates said.
“Radials are generally cylindrical. When you look at [a] cross-section [of the digit], they’re dumbbell-shaped.”
The structures are so peculiar, they might just be fragments of damaged bone, he added.
"one of the paper’s co-authors Per Ahlberg said that if
Tiktaalik were to remain the form that is closer to tetrapods, then “finger development took a step backward with Tiktaalik, and that Tiktaalik’s fins represented an evolutionary return to a more primitive form.”"
"
Panderichthys possesses relatively few tetrapod synapomorphies, and provides only partial insight into the origin of major features of the skull, limbs and axial skeleton of early tetrapods. In view of the morphological gap between elpistostegalian fish and tetrapods, the phylogenetic framework for the immediate sister group of tetrapods has been incomplete and our understanding of major anatomical transformations at the fish-tetrapod transition has remained limited.
(Edward B. Daeschler, Neil H. Shubin, and Farish A. Jenkins, “A Devonian tetrapod-like fish and the evolution of the tetrapod body plan,”
Nature, Vol. 440:757-763 (April 6, 2006).)"
Fossil Fishes and Amphibians
Micromelerpeton credneri
MB.Am.1183
This small amphibian species found in the Lower Permian lake sediments in Rhineland-Palatinate mostly remained at a larval stage and breathed via external gills. This specimen was found by Ernst Edinger near Odernheim and purchased by Museum für Naturkunde in 1998 as part of a larger collection. Detailed studies of this specimen showed that there are malformations at its front as well as its hind legs, which could be interpreted as failed regeneration. It could thus be demonstrated that even early tetrapods had the potential for leg regeneration, an ability only preserved in today’s salamanders and newts."
because that is what they are... the ancestors of salamanders and newts....
Just as the wolf is the ancestor to Poodles and pugs......