There are several cases of reported trackways of the earliest land-going vertebrates, also known as tetrapods. These trackways provide crucial insights to the study of the transition of aquatic to terrestrial lifestyles in vertebrate evolution. Such fossils help to illuminate not only the timing of this keystone transition of evolutionary history but also what the earliest forms of tetrapod locomotion may have entailed.
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are several cases of reported trackways of the earliest land-going vertebrates, also known as tetrapods. These trackways provide crucial insights to the...
Zachelmie trackways are a series of Middle Devonian-age trace fossils in Poland, purportedly the oldest evidence of terrestrial vertebrates (tetrapods) in the...
the earliest tetrapods could move about on land, as their limbs could not have held their midsections off the ground and the known trackways do not indicate...
true four-limbed tetrapods. Limbed vertebrates (tetrapods in the broad sense of the word) are first known from Middle Devonian trackways, and body fossils...
Katarzyna; Narkiewicz, Marek; Ahlberg, Per E. (7 January 2010). "Tetrapodtrackways from the early Middle Devonian Period of Poland". Nature. 463 (7277): 43–48...
Katarzyna Narkiewicz; Marek Narkiewicz; Per E. Ahlberg (2010). "Tetrapodtrackways from the early Middle Devonian period of Poland". Nature. 463 (7277). Nature...
similarly sized limbs with the same position and structure as the four tetrapod legs." http://www.ucmp.berkeley.edu/vertebrates/sarco/dipnoi.html Berkeley...
Lepospondyli: Overview, from Palaeos website. Niedźwiedzki (2010). "Tetrapodtrackways from the early Middle Devonian period of Poland". Nature. 463 (7277): 43–48...
the Robledo mountains of New Mexico, an area famous for its Permian tetrapodtrackways. Designated as the ichnogenus Serpentichnus, these marks occur as...
Katarzyna; Narkiewicz, Marek; Ahlberg, Per E. (January 7, 2010). "Tetrapodtrackways from the early Middle Devonian period of Poland". Nature. 463 (7277): 43–48...
Geology Trace fossils are common. Examples include tetrapod footprints, fish fin trails, arthropod trackways, wave ripples, mud cracks, rain drops, and bromolites...
Narkiewicz, M and Ahlberg, P., Nature 463(7227):43–48, 2010, Tetrapodtrackways from the early Middle Devonian period of Poland, 7 January 2010. Clack, Jennifer...
Acanthostega (meaning "spiny roof") is an extinct genus of stem-tetrapod, among the first vertebrate animals to have recognizable limbs. It appeared in...
Narkiewicz, Katarzyna; Narkiewicz, Marek; Ahlberg, Per E. (2010). "Tetrapodtrackways from the early Middle Devonian period of Poland". Nature. 463 (7277): 43–48...
a limbed tetrapod with digits. While no fossilized trackways from Ventastega have yet been discovered, discoveries of late Devonian trackways from closely...
bipedal dinosaur trackways. New Middle Jurassic tracksite dominated by non-avian theropod footprints, including theropod trackways with preserved manus...
1017/S0022336000031504. ISSN 0022-3360. Clack, J.A. (May 1997). "Devonian tetrapodtrackways and trackmakers; a review of the fossils and footprints" (PDF). Palaeogeography...
1000047. hdl:11336/97957. PMID 21616859. Niedźwiedzki (2010). "Tetrapodtrackways from the early middle Devonian period of Poland". Nature. 463 (7277): 43–48...
from fossil trackways that have occasionally been found to preserve only the forefeet (manus) impressions. Henderson showed that such trackways can be explained...
Valencia. In 1993 an undergraduate geology student discovered fossilised tetrapodtrackways, footprints preserved in Devonian rocks, on the north coast of the...
Amniotes are tetrapod vertebrate animals belonging to the clade Amniota, a large group that comprises the vast majority of living terrestrial and semiaquatic...
berkeley.edu. Retrieved 2022-10-03. Niedźwiedzki (2010). "Tetrapodtrackways from the early Middle Devonian period of Poland". Nature. 463 (7277): 43–48...
stem tetrapods. Stem tetrapods are members of Tetrapodomorpha, the total group and clade that also includes their descendants, the crown tetrapods: The...
Ichthyostega is often labelled a 'tetrapod' because of its limbs and fingers, it evolved long before true crown group tetrapods and could more accurately be...
Reptiles, as commonly defined, are a group of tetrapods with an ectothermic ('cold-blooded') metabolism and amniotic development. Living reptiles comprise...
Narkiewicz, Katarzyna; Narkiewicz, Marek; Ahlberg, Per E. (2010). "Tetrapodtrackways from the early Middle Devonian period of Poland". Nature. 463 (7277): 43–48...
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