Concepedia

Scales of thelodont and shark-like fishes from the Ordovician of Colorado

Ivan J. Sansom, Moya Meredith Smith, M. Paul Smith

Nature · 1996 · 139 citations · 10 references

DOI

Concepts

References

10

Vertebrate Paleontology and Evolution

John H. Ostrom, Robert L. Carroll · Palaios · 1988 · 1.7K citations

, , +12

Agnathans and the origin of jawed vertebrates

Peter L. Forey, Philippe Janvier · Nature · 1993 · 388 citations

, , +12

The phylogeny of the Craniata, with particular reference to the significance of fossil “agnathans”

Philippe Janvier · Journal of Vertebrate Paleontology · 1981 · 216 citations

, , +16

Presence of the Earliest Vertebrate Hard Tissue in Conodonts

IJ Sansom, M. Paul Smith, H. A. Armstrong et al. · Science · 1992 · 167 citations

, , +17

Preliminary Notes on the Discovery of a Vertebrate Fauna in Silurian (Ordovician) Strata

C. D. Walcott · Geological Society of America Bulletin · 1892 · 81 citations

, , +6