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Re: Extinction - specific info

>>In particular, I'm interested in specific species that thrived (?) in
>>the early Cretaceous, but went extinct BEFORE the end of the
>>Cretaceous, and any theories as to why that particular species didn't
>Maybe a better question might be,
>What dinosaurs did die out in the latest Cretaceous?  [That way, you can
>figure out the rest by taking a list of all Cretaceous dinosaurs, and
>subtracting these ones.]
>Later today I'll try to get an updated list of the latest Maastrichtian
>dinosaur species.

Here they are (from Holtz, in review):

North America:
Velociraptorine indet.
Dromaeosaurine indet.
Elmisaurid indet.
Nanotyrannus lancensis
"Aublysodon" molnari
Albertosaurus? megagracilis [?= subadult T. rex?]
Tyrannosaurus rex
Ornithomimus velox
Troodon sp.
Alamosaurus sanjuanensis
Dyslocosaurus polyonychius [may actually be Late Jurassic!]
Edmontonia [aka Denversaurus] schlessmani
Ankylosaurus magniventris
Stygimoloch spinifer
Stegoceras edmontonense
Pachycephalosaurus wyomingensis
Leptoceratops gracilis
Torosaurus latus
Diceratops hatcheri
Triceratops horridus
Triceratops sp. 2 of Forster
Thescelosaurus neglectus
Thescelosaurus? garbanni
Anatotitan copei
Edmontosaurus regalis
Edmontosaurus annectens
Edmontosaurus saskatchewanensis
Parasaurolophus tubicen

Central Europe:
Betasuchus bredi (indeterminate theropod)
Abelisaurid indet.
Elopteryx nopscai
Hypselosaurus priscus
Magyarsaurus dacus
Magyarsaurus transsylanicus
Magyarsaurus hungaricus [the last four may only be one or more species]
Struthiosaurus transilcanicus
Rhabdodon priscus
Telmatosaurus transylvanicus

Indosaurus matleyi
Indosuchus raptorius
Compsosuchus solus
Titanosaurus indicus
Titanosaurus blanfordi
"Antarctosaurus" septentrionalis
Dravidosaurus blanfordi

Argentina:  [dating of South American Cretaceous still uncertain; some or
all may be older than latest Maastrichtian]
Abelisaurus comahuensis
Xenotarsosaurus bonapartei [?= Abelisaurus comahuensis?]
Noasaurus leali
Argyrosaurus superbus
Epachtosaurus sciuttoi
Nequenosaurus australis
Laplatosaurus araukanikus
Saltosaurus loricatus
Tall-spined diplodocid (not dicraeosaurid) of Sciutto and Martinez (1994)
Secernosaurus koerneri
Lambeosaurine indet.

And, unfortunately, there are no Asian dinosaur localities yet known from
the latest Maastrichtian (although we can always hope...).

Thomas R. Holtz, Jr.                                   
Vertebrate Paleontologist in Exile                  Phone:      703-648-5280
U.S. Geological Survey                                FAX:      703-648-5420
Branch of Paleontology & Stratigraphy
MS 970 National Center
Reston, VA  22092