Species which are not extinct are termed extant. There are 19 species of macaws, including extinct and critically endangered species. They have been identified in both extinct and extant vertebrates. Many types of extinct dormouse species have been identified. It is home to many different animals including some nearly extinct regional species. A number of extinct pangolin species are also known. He was successful, and also found remains of other extinct species. Phylogeny is based on a combination of studies of extinct and extant species. This is a list of dog breeds, including extant breeds and extinct breeds and varieties. Systematic classifications dealing with both extant and extinct taxa vary more widely. Crop diversity helps environments thrive and protects species from going extinct. Below is a cladogram with extinct species. Alpha diversity can be calculated in both extinct and extant landscapes. Madagascar was once home to the now extinct elephant birds. Cloning is a commonly suggested method for the potential restoration of an extinct species.