Skeletal remains of Xiphactinus have come from the Carlile Shale and Greenhorn Limestone of Kansas (where the first Xiphactinus fossil was discovered...

fed on small particles. There is evidence that at least one species, Xiphactinus audax, may have been endothermic ("warm-blooded"). Another genus, Dugaldia...

fish Xiphactinus audax with the skeleton of another bony fish, Gillicus arcuatus inside the larger one. Another excellent skeleton of Xiphactinus audax...

was also a filter-feeder. Gillicus was also eaten by its own relative, Xiphactinus. One particular 13 foot (4.0 m) long fossil specimen contains a nearly...

Pachyrhizodus, Enchodus, and the massive 4-to-5-metre (13 to 16 ft) long Xiphactinus, larger than any modern bony fish. Other sea life included invertebrates...

13-foot-long Xiphactinus containing, below the ribs, a 6-foot-long fish, a Gillicus, which took up about half of the length of the Xiphactinus, killing it...

R.; Stewart, J. D.; Williams, G. Dent (1997). "Xiphactinus vetus and the Distribution of Xiphactinus Species in the Eastern United States". Journal of...

to the sea, bitten off by some large predator such as a mosasaur or a Xiphactinus, or was crushed off by larger adults while herding on the shore. However...

specimen found with the stomach stuffed with the extinct herring Xyne grex) Xiphactinus (a 4-meter-long specimen was found with a perfectly preserved skeleton...

and consists of a partial vertebral column with skeletal remains of a Xiphactinus as stomach contents and partial jaws with about 150 teeth visible. This...

his discovery in Gove County, Kansas of the "fish-within-a-fish" of Xiphactinus audax with a recently eaten Gillicus arcuatus within its stomach. Sternberg...

Tylosaurus (a mosasaur) hunting Xiphactinus...

The museum's fossil collection includes a 20-foot mosasaur, a 14-foot Xiphactinus fish, Pteranodon specimens, fossil birds, and numerous other late Cretaceous...

Skeletal reconstruction of Tylosaurus hunting a Xiphactinus at the Academy of Natural Sciences of Drexel University, Philadelphia...

such as Enchodus, Protosphyraena, Stratodus, and the ichthyodectids Xiphactinus and Saurodon. Mosasaurus is known from late Maastrichtian deposits in...

"Unicerosaurus" (Armstrong, 1987, identified this fossil as belonging to a fish Xiphactinus). Studies over the years had concluded that the fossil "human" footprints...

surface. Hesperornis hunt for fish until they themselves are hunted by Xiphactinus. Nostoceras hatchlings are at the mercy of the tides and juvenile Pyroraptor...

Xiphactinus is famous for being found with another fish (Gillicus) preserved in its stomach....

Eubiodectes Ichthyodectidae Cooyoo Ghrisichthys Ichthyodectes Postredectes Xiphactinus Saurodontidae Gwawinapterus Prosaurodon Saurocephalus Saurodon Unamichthys...

Enchodus, Cimolichthys, Saurocephalus, Saurodon, Gillicus, Ichthyodectes, Xiphactinus, Protosphyraena and Martinichthys; and the sharks Cretoxyrhina, Cretolamna...

specimens, which were accompanied by teeth that belonged to the fish Xiphactinus, which Marsh assumed that these teeth belonged to the pterosaur specimens...

19 April 2015 (2015-04-19) TBA Featured animals: Xenacanthus, alligator gar, Xiphactinus, Indo-Pacific sailfish, Leedsichthys, whale shark, Megapiranha, red bellied...

of partial wing bones, as well as a tooth from the prehistoric fish Xiphactinus, which Marsh mistakenly believed to belong to this new pterosaur (all...

Styracosaurus Saurolophus Triceratops Troodon Tyrannosaurus Velociraptor Xiphactinus Wuerhosaurus Some animated depictions were made to give an impression...

late Cretaceous. It was closely related to the 4–6 m (13–20 ft) long Xiphactinus audax, and the 2 m (6 ft 7 in) long Gillicus arcuatus, and like other...

silicoflagellates. 115 Ma First monotreme mammals. 114 Ma Earliest bees. 112 Ma Xiphactinus, a large predatory fish, appears in the fossil record. 110 Ma First hesperornithes...

Gillicus arcuatus within the stomach of Xiphactinus audax, George F. Sternberg's most famous fossil find...

warm waters frequented by sharks, small mosasaurs, and fish such as Xiphactinus. Spiral-shelled ammonites and invertebrates of the marine shelf are also...

swordfish-like Protosphyraena, as well as the predatory fishes Pachyrhizodus, Xiphactinus, Ichthyodectes, Gillicus, Leptecodon, Enchodus and Cimolichthys, the...

large predatory fish were present in the seas at that time, most notably Xiphactinus. Several fish were of close relation to modern day fish including primitive...