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Re: On Terror Birds & Teratorns
From: "Ivan Kwan" <firstname.lastname@example.org>
Subject: On Terror Birds & Teratorns
Date: Sat, 26 Apr 2003 23:25:46 +0800
Here you get my answer on some of these questions.
1) Are the terror birds really closely related to the seriemas of South
Certainly,the seriemas are basal to phorusrhacids,though not to the
diatrymids,wich are galloanserian.the path seriema->terror bird is known by
several more or less intermediate steps,such as bathornithids and
3) Did any terror birds survive until the Late Pleistocene?
I think Titanis was represented in the La Brea pits while other terror birds
could be found in SA.
4) Is _Titanis_ the only North American phorusrhacid?
For as far as I know,yes.
5) Which teratorns survived until the Late Pleistocene?
Teratornis itself (known from NA as well as Cuba) and Cathartornis.I'm quite
sure they were still present in SA as well.
6) Is the teratorn-as-giant-vulture hypothesis still accepted?
By some,yes,but others including me favor them to be giant groundwalking
birds hunting small to mediumsized vertebrates as well as eating carrion.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
7) Did teratorns have bare necks, feathered necks or is it still unknown?
I hope I helped you,
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