File:Emergence of traits along the mammalian lineage.jpg
Original file (800 × 867 pixels, file size: 192 KB, MIME type: image/jpeg)
Emergence of traits along the mammalian lineage
Amniotes split into the sauropsids (leading to birds and reptiles) and synapsids (leading to mammal-like reptiles).
These small early mammals developed hair, homeothermy and lactation (red lines).
Monotremes diverged from the therian mammal lineage 166 Myr ago2 and developed a unique suite of characters (dark-red text). Therian mammals with common characters split into marsupials and eutherians around 148 Myr ago2 (dark-red text).
Geological eras and periods with relative times (Myr ago) are indicated on the left. Mammal lineages are in red; diapsid reptiles, shown as archosaurs (birds, crocodilians and dinosaurs), are in blue; and lepidosaurs (snakes, lizards and relatives) are in green.
Original file name: Figure 1 Nature06936-f1.2.jpg http://www.nature.com/nature/journal/v453/n7192/fig_tab/nature06936_F1.html
Reference
<pubmed>18464734</pubmed>| PMC2803040 | Nature
This article is distributed under the terms of the Creative Commons Attribution-Non-Commercial-Share Alike licence (http://creativecommons.org/licenses/by-nc-sa/3.0/), which permits distribution, and reproduction in any medium, provided the original author and source are credited. This license does not permit commercial exploitation, and derivative works must be licensed under the same or similar licence.
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 05:21, 7 May 2011 | 800 × 867 (192 KB) | S8600021 (talk | contribs) | ==Emergence of traits along the mammalian lineage== Amniotes split into the sauropsids (leading to birds and reptiles) and synapsids (leading to mammal-like reptiles). These small early mammals developed hair, homeothermy and lactation (red lines). Monot |
You cannot overwrite this file.
File usage
The following page uses this file: