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Post by tofumix77 on Aug 18, 2020 15:39:10 GMT -5
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Post by aussiegirl on Aug 18, 2020 16:03:59 GMT -5
What about other reptiles?
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Post by Juliet Long on Aug 18, 2020 18:30:45 GMT -5
That's a map that I don't understand!!
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Post by metrojersey85 on Aug 18, 2020 19:12:11 GMT -5
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Post by limitless on Aug 18, 2020 19:12:32 GMT -5
I like having her here as a teacher this month.
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Post by Volunteer Firefighter on Aug 18, 2020 19:12:51 GMT -5
So birds haven't changed this entire time?
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Post by limitless on Aug 18, 2020 19:13:08 GMT -5
^IB people with pet birds don't know they have little dinos.
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Post by Volunteer Firefighter on Aug 18, 2020 19:13:33 GMT -5
I think tortoises look more like dinosaurs, but they also might be too gentle.
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Post by Talira Greycrest on Aug 18, 2020 19:29:52 GMT -5
I think one of the biggest differences is that modern birds have a beak whilst some of the earliest birds such as Ichthyornis and Archaeopteryx had teeth.
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Post by ontheroad on Aug 18, 2020 21:13:24 GMT -5
I think one of the biggest differences is that modern birds have a beak whilst some of the earliest birds such as Ichthyornis and Archaeopteryx had teeth. I wonder how their diet was influenced. |
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Post by Talira Greycrest on Aug 18, 2020 22:03:09 GMT -5
Archaeopteryx: Carnivore/insectivore
Ichthyornis: Piscivore.
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Post by ProneToEpisodes on Aug 19, 2020 5:17:01 GMT -5
Archaeopteryx: Carnivore/insectivore Ichthyornis: Piscivore. Fishy? |
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Post by Talira Greycrest on Aug 19, 2020 6:45:44 GMT -5
Archaeopteryx: Carnivore/insectivore Ichthyornis: Piscivore. Fishy? Yep. Ichthyornis means "Fish bird". It lived during the Late Cretaceous, between 95 and 83 million years ago in what is now western Canada and the southeastern, south central, southwestern and midwestern United States. It was first discovered by Benjamin Franklin Mudge in 1870, who then sent the specimen to well-known American palaeontologist, Othniel Charles Marsh. Originally, the toothed jaws were thought to belong to a small marine reptile. |
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Post by abbybaby on Aug 19, 2020 7:39:43 GMT -5
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Post by Talira Greycrest on Aug 19, 2020 7:44:19 GMT -5
I think the flow chart is showing the most rapidly evolving parts of the skull. |
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