Problem
Threatened species of Archosauria
Experimental visualization of narrower problems
Nature:
The Archosauria (the "ruling reptiles") is a major group of diapsids (all reptiles living and extinct, except turtles).
Background:
The ancestral archosaurs probably originated some 250 million years or so ago, in the late Permian period. Their descendants (such as the dinosaurs) dominated the realm of the terrestrial vertebrates for a majority of the Mesozoic Era. Today, only the birds and crocodilians exist to provide a glimpse into the past glory of archosaurs.
Broader Problems:
Threatened species of Reptiles Narrower Problems:
Extinct species of SaurischiaExtinct species of PlacodontiaExtinct species of PterosauriaExtinct species of ThecodontiaExtinct species of OrnithischiaThreatened species of CrocodyliaExtinct species of SauropterygiaExtinct species of Ichthyosauria Subject(s):
Societal Problems → Endangered speciesRelated UN Sustainable Development Goals:
Problem Type:
D: Detailed problems Date of last update
21.05.2019 – 17:21 CEST