WebNeil Shubin describes how he taught a human anatomy course at the University of Chicago, though his degree was in paleontology and his specialty was fish. Yet Shubin’s knowledge of other animals gave him the opportunity to explain complex human anatomy in terms of simpler animal anatomy. WebWeb this worksheet follows the program called your inner fish which features fish paleontologist neil shubin as he describes the search for tiktaalik, the transitional. As they work through the click & learn, students explore multiple lines of evidence for common descent found among the bodies and cells of both extinct and. Source: www.pitsco.com
Explore Your Inner Animals - PBS
WebTiktaalik shows human’s history as fish the same way that the famous “Lucy” (an early human ancestor discovered in Ethiopia) shows human’s history as highly advanced … WebComputed tomography analysis of Tiktaalik roseae, a key intermediate in tetrapod evolution, compared with extant analogs (gars and polypterids), reveals a rigid skull, capable of biting, with joint morphologies suggestive of cranial kinesis and suction generation. the son by penguin knight
Tiktaalik roseae: Meet Tiktaalik - University of Chicago
WebOct 15, 2008 · A new study, published this week in Nature, provides a detailed look at the internal head skeleton of Tiktaalik roseae and reveals a key intermediate step in the transformation of the skull that... WebTiktaalikhad fins with thin ray bones, scales, and gills like most fish; however, it also had the sturdy wrist bones, neck, shoulders, and thick ribs of a four-legged … Tiktaalik is a transitional fossil; it is to tetrapods what Archaeopteryx is to birds, troodonts and dromaeosaurids. While it may be that neither is ancestor to any living animal, they serve as evidence that intermediates between very different types of vertebrates did once exist. See more Tiktaalik is a monospecific genus of extinct sarcopterygian (lobe-finned fish) from the Late Devonian Period, about 375 Mya (million years ago), having many features akin to those of tetrapods (four-legged animals). Tiktaalik … See more Tiktaalik generally had the characteristics of a lobe-finned fish, but with front fins featuring arm-like skeletal structures more akin to those of a See more Tiktaalik roseae is the only species classified under the genus. Tiktaalik lived approximately 375 million years ago. It is representative of the transition between non-tetrapod vertebrates (fish) such as Panderichthys, known from fossils 380 million years old, … See more In 2004, three fossilized Tiktaalik skeletons were discovered in the Late Devonian fluvial Fram Formation on Ellesmere Island, Nunavut, in northern Canada. … See more Tiktaalik provides insights on the features of the extinct closest relatives of the tetrapods. Tiktaalik was a large fish: the largest known … See more The fossils of Tiktaalik were found in the Fram Formation, deposits of meandering stream systems near the Devonian equator, suggesting a benthic animal that lived on the bottom … See more 2006–2010: Elpistostegids as tetrapod ancestors The phylogenetic analysis of Daeschler et al. (2006) placed Tiktaalik as a sister taxon to See more myringotomy device