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tetrapodomorph in a sentence

1. Despite being able to crawl on land, many of these prehistoric tetrapodomorph fish still spent most of their time in the water.

2. Such scientists use the term "stem-tetrapod" to refer to those tetrapod-like vertebrates that are not members of the crown group, including the tetrapodomorph fishes.

3. The first tetrapods probably evolved in the Emsian stage of the Early Devonian from Tetrapodomorph fish living in shallow water environments.

4. This feature appears only in tetrapods and Tiktaalik, not other tetrapodomorph fishes.

5. For example, Tiktaalik had a long spine with far more vertebrae than any known tetrapod or other tetrapodomorph fish.

6. A major difference between early tetrapodomorph fishes and early tetrapods was in the relative development of the front and back skull portions;

7. In tetrapodomorph fishes such as Eusthenopteron, no such neck joint existed.

8. The Tetrapodomorph ancestors of the Tetrapods further developed their lobe fins.

9. This was in contrast to the larger fangs and small marginal teeth of earlier tetrapodomorph fishes such as Eusthenopteron.

10. It is likely, however, that they represent one more of a number of early Carboniferous tetrapodomorph radiations.

11. All tetrapodomorph fish had a quadratojugal, retained by their tetrapod descendants.

12. Eusthenopteron, like other tetrapodomorph fishes, had internal nostrils, (or a choana) which are one of the defining traits of tetrapodomorphs (including tetrapods).

13. The cleithrum portion is smooth, unlike the rough-textured cleithrum of tetrapodomorph fish.

14. The apex predator of the assemblage was Hyneria, a 3-meter (10 feet) long tetrapodomorph fish.

15. Tetrapodomorph fossils are known from the early Devonian onwards, and include Osteolepis, Panderichthys, Kenichthys and Tungsenia.

16. Tristichopterids (Tristichopteridae) were a diverse and successful group of tetrapodomorph fishes living throughout the Middle and Late Devonian.

17. Kenichthys was a small tetrapodomorph, with a skull about 2 cm long.

18. Kenichthys has consistently been seen as the most basal tetrapodomorph since its discovery.

19. They represent the advanced tetrapodomorph stock, the fishes more closely related to tetrapods than the osteolepiform fishes.

20. Letognathus is a genus of rhizodont tetrapodomorph that lived during the Carboniferous period.

21. Marsdenichthys is an extinct genus of Devonian tetrapodomorph.

22. Tungsenia is an extinct genus of basal tetrapodomorph bony fish known from the ~409 mya (Early Devonian) of northeastern Yunnan Province, China.

23. It is the basalmost known tetrapodomorph.

24. The tetrapods have their root in the early Devonian tetrapodomorph fish.

25. Primitive tetrapods developed from an osteolepid tetrapodomorph lobe-finned fish (sarcopterygian-crossopterygian), with a two-lobed brain in a flattened skull.

26. The oldest known tetrapodomorph is Kenichthys from China, dated at around 395 million years old.

27. The complete transition occurred over a period of 25 million years beginning with the tetrapodomorph diversification in the Middle Devonian (380 myr).

28. There was a loss of opercular and extrascapular elements, enhancing head mobility in T. roseae compared to other tetrapodomorph fish.

29. It is known from a single jaw, which shares an unusual combination of features from both other aistopods and from stem-tetrapod tetrapodomorph fish.

30. This type of structure is known in large "labyrinthodont" tetrapods and their tetrapodomorph ancestors, but unknown in any other aistopod.