Fossil Evidence for a Late Cretaceous Origin of “Hoofed” Mammals

@article{Archibald1996FossilEF,
  title={Fossil Evidence for a Late Cretaceous Origin of “Hoofed” Mammals},
  author={J. David. Archibald},
  journal={Science},
  year={1996},
  volume={272},
  pages={1150 - 1153}
}
Seventeen of eighteen orders of living placental mammals are not known before 65 million years ago. The monophyly of each order is well established, but interrelations have been less certain. A superordinal grouping of up to seven extant orders plus a variety of extinct orders, all included within Ungulata (“hoofed” mammals), can be linked to Late Cretaceous mammals from the 85-million-year-old Bissekty Formation, Uzbekistan (and, less certainly, North America and Europe), thus pushing the… Expand

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References

SHOWING 1-10 OF 16 REFERENCES
AMNIOTE PHYLOGENY AND THE IMPORTANCE OF FOSSILS
TLDR
The importance of the critical fossils seems to reside in their relative primitive‐ness, and the simplest explanation for their more conservative nature is that they have had less time to evolve. Expand
The origin of eutherian mammals
TLDR
Eutherian-style trophoblast probably originated in the Mesozoic, and boosts in diversity were probably secondary and dependent upon prior innovation of trophoblastic/uterine wall immunological protection of foetal tissues during prolonged intra-uterine development. Expand
Functional Morphology in Vertebrate Paleontology
TLDR
This paper presents a meta-analysis of the evolution of the hindlimb and tail from basal theropods to birds and the consequences of skull flattening in crocodilians and an analysis of the posture and gait of ceratopsian dinosaurs. Expand
Experimental taphonomy of embryo preservation in a Cenozoic brooding bivalve
TLDR
The fossil synchronous broods are an artifact of preservation and asynchronous brooding in Transenella is conservative, which indicates there is enough preservation of the later stages of development to distinguish the two modes of reproduction. Expand
Mammalian phytogeny: shaking the tree
TLDR
Recent palaeontological discoveries and the correspondence between molecular and morphological results provide fresh insight on the deep structure of mammalian phylogeny but has yet to resolve some important issues. Expand
EARLY TRENDS IN THE EVOLUTION OF TRIBOSPHENIC MOLARS
. . . . . . . . . . . . . . . I . Introduction 529 11. Nomenclature and mensuration 531 111. Peramuridae 534 IV. Early Cretaceous tribosphenids 535 V. Deltatheridiids and possible relatives 538 VI.Expand
Bacteria as Mediators of Copper Sulfide Enrichment During Weathering
TLDR
A scanning electron microscope study of chalcocite from major enriched copper deposits in northern Chile revealed myriad bacterioform bodies in original growth positions near replacement interfaces with remnant hypogene sulfide grains, interpreted as fossilized and metallized nannobacteria that promoted the fixation of mobilized copper ions. Expand
Structure, function and evolution of teeth
TLDR
By reading structure function and evolution of teeth, you can take more advantages with limited budget. Expand
Prothero, in Placentals, vol. 2 of Mammal Phylogeny
  • 1993
Mammal Phylogeny
  • Springer New York
  • 1993
...
1
2
...