THE NORTH AMERICAN AVISAURIDS (AVES: ENANTIORNITHES): NEW DATA ON BIOSTRATIGRAPHY AND BIOGEOGRAPHY
Publicación Electrónica de la Asociación Paleontológica Argentina, 2015 In addition to the two described Avisaurus species (A. archibaldi Brett-Surman and Paul and A. gloriae Varrichio and Chiappe), undescribed material from the Maastrichtian contributes important morphologic, biostratigraphic, and biogeographic data on ...
Thomas A. Stidham, J. Howard Hutchison
doaj
Step-wise extinctions at the Cretaceous-Tertiary boundary and their climatic implications [PDF]
A comparative study of planktonic foraminifera and radiolarian assemblages from the Cretaceous-Tertiary (K-T) boundary section of the Beloc Formation in the southern Peninsula of Haiti, and the lowermost Danian sequence of the Micara Formation in ...
Maurrasse, Florentin J-M. R.
core +1 more source
Calcareous green algae from the Santonian Hochmoos Formation of Gosau (Northern Calcareous Alps, Austria, Lower Gosau Subgroup) [PDF]
, 2004 Schlagintweit, Felix
core +1 more source
Ar-40 to Ar-39 ages of the large impact structures Kara and Manicouagan and their relevance to the Cretaceous-Tertiary and the Triassic-Jurassic boundary [PDF]
Since the discovery of the Ir enrichment in Cretaceous-Tertiary boundary clays in 1980, the effects of a 10-km asteroid impacting on the Earth 65 Ma ago have been discussed as the possible reason for the mass extinction--including the extinction of the ...
Jessberger, E. K., Trieloff, M.
core +1 more source
Maastrichtian brachiopods from the chalk of Denmark
Bulletin of the Geological Society of DenmarkA rich brachiopod fauna from the Maastrichtian chalk of Denmark is obtained from washed bulk samples from 42 localities. Two of these may, however, show uppermost Campanian chalk. A total of 44 species are recognized, represented by more than 35,000 specimens, most of them being micromorphic, millimetre-sized forms.
openaire +1 more source
High precision CA-ID-TIMS U-Pb zircon age for the "Dueling Dinosaurs" locality, with implications for regional correlation, basal age and duration of the Hell Creek Formation, Montana. [PDF]
PLoS OneRoberts EM +7 more
europepmc +1 more source
Revision of Cenomanian-Turonian (Upper Cretaceous) gastropods from Egypt [PDF]
, 2011 Ayoub-Hannaa, Wagih +1 more
core +1 more source
A large tyrannosaurid from the Late Cretaceous (Campanian) of North America. [PDF]
Sci RepLongrich NR +3 more
europepmc +1 more source
Ammonite survival across the Cretaceous-Paleogene boundary confirmed by new data from Denmark. [PDF]
Sci RepMachalski M +5 more
europepmc +1 more source
Obligate faunivorous megatheropod size class patterns across the Jurassic-Cretaceous Periods. [PDF]
PeerJBoisvert C +5 more
europepmc +1 more source