Swedish hesperornithiforms - new paper

[Tim Williams <twilliams_alpha@hotmail.com>]

Rees, J. and Lindgren, J. (2005).  Aquatic birds from the Upper Cretaceous 
(Lower Campanian) of Sweden and the biology and distribution of 
Hesperornithiforms.  Palaeontology 48(6): 1321-1329.

ABSTRACT. "Isolated skeletal elements of three hesperornithiform taxa are 
recorded from marine strata of latest early Campanian (sensu germanico) age 
in the Kristianstad Basin, southern Sweden.  The material comprises 
_Hesperornis rossicus_ Nessov and Yarkov, one of the largest Mesozoic 
aquatic birds known to date, _Hesperornis_ sp. and _Baptornis_ sp.  The 
holotype (a dorsal vertebra) of _Parascaniornis stensioei_ Lambrecht is 
re-examined, and the nominal species is here considered as a nomen dubium 
because no diagnostic features can be found that separate the type from 
dorsals of _Baptornis advenus_.  The distribution and palaeobiology of 
hesperornithiforms are reviewed."