Correction, crocodiles we’re not around before the dinosaurs. They evolved in the Cretaceous which is well and truly in the age of dinosaurs, the pseudosuchia (the border group crocs belong too) have been around before the dinosaurs (by at least 5-10 my)
@@DavidBirdScience Its fine, I am making a phylogenetic tree or maybe a cladogram that goes into detail. I would be happy to share that with you and you can use it in your videos
@@greyideasthetheliopurodon4640 That would be awesome. This summer I plan to make a few videos called "Fun with Evolution" where I get into more details about ancestry.
Totally. We wouldn't want to exclude Aves from the phylogenetic tree. This video is just on the non Avian reptiles. Later I plan to have a video on Aves, phylogenetic trees, and clades. Thanks for watching.
@@Homo_sAPEien yes, not sure your point. We wouldn't exclude any of them on a phylogenetic tree or in cladistics. This video is about the class of reptilia. I always include the birds in my clades and trees.
@@Homo_sAPEien As a Zoology teacher I teach my students in the beginning of the semester Cladistics and how phylogenetics work. I even spend a whole day going over the phylogenetic tree of dinosaurs. Even though reptiles and birds are in the same clade, there is value in teaching the classes reptilia and Aves because of their physiological differences. Current zoology text books still have reptilia and Aves separated mainly for the purpose of anatomy and physiology.
Lizards are a paraphyletic group, if excluding snakes.
Snakes don’t actually dislocate the jaws as they’re not connected.
Correction, crocodiles we’re not around before the dinosaurs. They evolved in the Cretaceous which is well and truly in the age of dinosaurs, the pseudosuchia (the border group crocs belong too) have been around before the dinosaurs (by at least 5-10 my)
Thanks so much for the correction. I mistakenly thought of many of the Archosaurs as being crocodilian.
@@DavidBirdScience Its fine, I am making a phylogenetic tree or maybe a cladogram that goes into detail. I would be happy to share that with you and you can use it in your videos
@@greyideasthetheliopurodon4640 That would be awesome. This summer I plan to make a few videos called "Fun with Evolution" where I get into more details about ancestry.
@@DavidBirdScience sure thing, I will give you a heads up. Do you have an email I can forward it to you in?
@@greyideasthetheliopurodon4640 Yeah, you can find my contact info at davidbirdscience.com along with all my other science stuff.
Reptiles are a paraphyletic group, if excluding birds.
Totally. We wouldn't want to exclude Aves from the phylogenetic tree. This video is just on the non Avian reptiles. Later I plan to have a video on Aves, phylogenetic trees, and clades. Thanks for watching.
@@DavidBirdScience But, crocodilians and turtles are more closely related to birds than they are to Lepidosaurs.
@@Homo_sAPEien yes, not sure your point. We wouldn't exclude any of them on a phylogenetic tree or in cladistics. This video is about the class of reptilia. I always include the birds in my clades and trees.
@@DavidBirdScience To group together non-bird reptiles, while excluding birds, is outdated.
@@Homo_sAPEien As a Zoology teacher I teach my students in the beginning of the semester Cladistics and how phylogenetics work. I even spend a whole day going over the phylogenetic tree of dinosaurs. Even though reptiles and birds are in the same clade, there is value in teaching the classes reptilia and Aves because of their physiological differences. Current zoology text books still have reptilia and Aves separated mainly for the purpose of anatomy and physiology.
Good
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