[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]

RE: T. rex



Don't forget the crocodilians, either. Some of the carcases were
on river banks in the estuarine system of the bear paw sea,
especially those that were due to drowning, not predation.
G. Derkits

> ----------
> From:         Patrick Norton[SMTP:ptnorton@email.msn.com]
> Sent:         Sunday, March 07, 1999 7:06 PM
> To:   Dinogeorge@aol.com; derek@url.co.nz; dinosaur@usc.edu
> Subject:      Re: T. rex
> 
> Dinogeorge wrote:
> 
> >Just out of curiosity, what would be the >next< largest predator in the
> Tyrannosaurus rex_ ecosystem? The one that _T. rex_ would presumably be
> chasing away from a kill?<
> 
> The following dinosaurs are noted in the Dinosauria as coming from the
> Montana Part of the Hell Creek Formation (contemporaries to T rex and
> possible competitors for a piece of a kill):
> 
> 1) Avisaurus archibaldi Brett-Surman and Paul 1985 A bird;
> 2) Mononykinae incertae sedis (Hutchinson and Chiappe, 1998) "The Montanan
> mononykine". A theropod (probably a bird) closely related to, and of
> overall
> similarity to, the Asian genus Mononykus;
> 3) Aublysodon mirandus = ?Stygivenator Theropod (a tooth taxon);
> 4) Aublysodon molnari = ?Stygivenator Theropod (aka, "The Jordan
> Theropod");
> 5) (?= Nanotyrannus lancensis Bakker et al., 1988) (= Albertosaurus
> megagracilis Paul 1988);
> 6) Ricardoestesia gen. Currie, Rigby and Sloan 1990:117 Theropod (a
> tooth/jaw taxon)
> 7) Ornithomimus sp. Theropod;
> 8) Ornithomimid indet. Theropod;
> 9) ?Chirostenotes sp. (=?Caenagnathus) A theropod closely related to the
> Asian genus Oviraptor;
> 10) Troodon formosus Leidy 1856 Theropod;
> 11) Troodon indet. Theropod;
> 12) Dromaeosaurus sp. Theropod;
> 13) ?Velociraptor sp. Theropod;
> 14) Dromaeosaurid indet.#1 Theropod;
> 15) Dromaeosaurid indet. #2 Theropod;
> 
> I can envision quite a crowd around a carcass, actually.
> 
> 
> 
>