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Re: On Terror Birds & Teratorns

Brian Lauret wrote:

Certainly,the seriemas are basal to phorusrhacids,though not to the diatrymids,wich are galloanserian.

The big, flightless and (alas) extinct dromornithids of Australia also appear to lie close to, or perhaps even within, the Galloanserae. Thus, they may be very close to the diatrymids (=gastornithids). Interestingly, the Galloanserae is the basal clade in the Neognathae, which puts the galloanserines right next to the Palaeognathae (ratites + tinamous). This part of the Neornithes (Palaeognathae+Galloanserae appears to have a disproportionate number of big flightless birds

As for teratornid-relationships,little is known. They're
possibly closer related to other birds,like storks and pelicans,than to cathartids.(or accipittrids,pandionids,sagitarids or falconids for that matter)

The New World vultures (Cathartidae; more correctly known as Vulturidae) have long been considered closer to storks (Ciconiidae) than to the other diurnal birds of prey (Falconiformes: accipitrids, pandionids, sagittariids, falconids etc).


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