A Mosasaur and a Croc: Not Where They Used to Be

["Jaime A. Headden" <qilongia@yahoo.com>]

  Lindgren, J. and M. Siverson. 2005. *Halisaurus sternbergi*, a small mosasaur
    with an intercontinental distribution. _Journal of Paleontology_
    79(4):763-773.

Abstract:
  "Remains of *Halisaurus sternbergi* (Wiman, 1920) from the latest Early
   Campanian (sensu germanico) of the Kristianstad Basin, southern Sweden,
   represent the first record of this species outside of the USA. The material
   comprises numerous marginal tooth-crowns, a premaxilla, an incomplete
   pterygoid, and vertebrae. The Kristianstad Basin population of *H.
   sternbergi* was probably derived from individuals that migrated from the
   Mississippi Embayment in North America sometime during the Early Campanian.
   Even though *H. sternbergi* thrived in great numbers in the coastal waters
of
   the southern part of the Baltic Shield during the latest Early Campanian,
the
   population appears to have been short-lived. Available data indicate that
*H.
   sternbergi*, along with several other species of mosasaurs, vanished from
the
   region following an intercontinental mosasaur extinction event, or a series
   of events, near the Early/Late Campanian boundary."

  Also in the same issue:

  Gasparini, Z., M. Cichowolski, and D. G. Lazo. 2005. First record of
    *Metriorhynchus* (Reptilia: Crocodyliformes) in the Bathonian (Middle
    Jurassic) of the eastern Pacific. _Journal of Paleontology_ 79(4):801-805.

  This is a note, thus there is no abstract for this article.

  Cheers,

Jaime A. Headden

  Little steps are often the hardest to take.  We are too used to making leaps 
in the face of adversity, that a simple skip is so hard to do.  We should all 
learn to walk soft, walk small, see the world around us rather than zoom by it.

"Innocent, unbiased observation is a myth." --- P.B. Medawar (1969)

"Human beings, who are almost unique in having the ability to learn from the 
experience of others, are also remarkable for their apparent disinclination to 
do so." --- Douglas Adams


                
____________________________________________________ 
Yahoo! Sports 
Rekindle the Rivalries. Sign up for Fantasy Football 
http://football.fantasysports.yahoo.com