- Yale University, Ph.D., 1982
- Yale University, M.Phil., 1977
- Adelphi University, M.S., 1975
- Polytechnic University of New York, B.S., 1972
Research InterestsResearch Interests
Dr. Landman’s interests include the evolution, life history, and systematics of externally shelled cephalopods, particularly the twin groups-the ammonoids and nautiloids. Both have a superb fossil record comprising about 10,000 species. His investigations have focused on the early ontogenetic development of ammonoids and nautiloids, and how this information can be used to reconstruct the phylogeny of these groups. He also studies the evolution and systematics of ammonoids from Upper Cretaceous rocks of the Northern Great Plains in the United States. Fieldwork in Montana, South Dakota, and Wyoming has resulted in an extensive collection of these ammonoids, which were plentiful in the seaway that once covered this part of North America during the Cretaceous Period. In addition to their systematics, he is concerned with the distribution of these species in time and space, and in relation to their paleoenvironment.
Recent work on the Atlantic Coastal Plain, including Maryland and New Jersey, has also yielded a surprising number of ammonite fossils. These fossils are very useful for biostratigraphic analysis, in correlating strata between the Western Interior and northern Europe. Of special interest is the study of Cretaceous/Tertiary boundary sections in New Jersey, which are rich in ammonites.
All of this research depends on field work and involves annual expeditions to the Northern Great Plains (Wyoming, South Dakota, and Montana) and, in addition, the Atlantic and Gulf Coastal Plains (New Jersey, Delaware, Maryland, Alabama, and Tennessee). More recently, these trips include parts of Western Europe (Poland). I have also collected Nautilus in Palau, Fiji, and New Caledonia, as part of a large study on the phylogeny of these cephalopods.
Recent Grant Support NSF EAR-125314 Collaborative Research: Soft Tissue and Membrane Preservation in Permian Cephalopods NSF EAR-308926 Collaborative Research: Paleobiology, Paleoceanography, and Paleoclimatology of a Time Slice through the Late Cretaceous Western Interior Seaway NSF DBI-619599 Acquisition of a Variable Pressure SEM at the American Museum of Natural History NSF Grant MR1-R2 Acquisition of a High Resolution CT-Scanner at the American Museum of Natural History New York State Innovation Economy Matching Grant for the Acquisition of a High Resolution CT Scanner NSF CSBR Natural History Collections: Support for the AMNH InvertebratePaleontology Collection; Addressing a critical need to conserve and digitize the Microfossil Collection
- Machalski, M., J.W.M. Jagt, N.H. Landman, and J. Uberna. 2009. First record of the North American scaphitid ammonite Discoscaphites iris from the upper Maastrichtian of Libya. Neues Jahrbuch für Geologie und Paläontolologie Abhandlungen. 254/3: 373-378.
- Kruta, I., I. Rouget, N. H. Landman, K. Tanabe, and F. Cecca. 2009. Aptychus microstructure in three genera of Late Cretaceous Ancyloceratina (Ammonoidea): unexpected diversity. Lethaia 42(2): 312-321.
- Polizzotto, K. and N.H. Landman. 2010. Pseudosutures and siphuncular membranes in hollow Rhaeboceras (Scaphitidae): Implications for chamber formation and shell growth. Cephalopods-Present and Past, Tanabe, K., Y. Shigeta, Y. Sasaki, and H. Hirano (editors), Tokai University Press, Tokyo: 131-140.
- Landman, N.H., R.H. Mapes, and C. Cruz. 2010. Soft tissues in ammonoid cephalopods from the Bear Gulch Lagerstätte (Lower Carboniferous), Montana, USA. Cephalopods-Present and Past, Tanabe, K., Y. Shigeta, Y. Sasaki, and H. Hirano(editors), Tokai University Press, Tokyo: 147-153.
- Landman, N.H., R.O. Johnson, M.P. Garb, L.E. Edwards, and F.T. Kyte. 2010. Ammonites from the Cretaceous/Tertiary Boundary, New Jersey, USA. Cephalopods-Present and Past, Tanabe, K., Y. Shigeta, Y. Sasaki, and H. Hirano(editors), Tokai University Press, Tokyo: 287-295.
- Klofak, S.M. and N.H. Landman. 2010. Some exceptionally well preserved specimens of Agoniatites vanuxemi form the Middle Devonian Cherry Valley Limestone of New York State, USA. Cephalopods-Present and Past, Tanabe, K., Y. Shigeta, Y. Sasaki, and H. Hirano (editors), Tokai University Press, Tokyo: 93-103.
- Tanabe, K., C .Kulicki, N.H. Landman, and A. Kaim. 2010. Tuberculate micro-ornamentation on embryonic shells of Mesozoic ammonoids: Microstructure, taxonomic variation, and morphogenesis. Cephalopods-Present and Past, Tanabe, K., Y. Shigeta, Y. Sasaki, and H. Hirano (editors), Tokai University Press, Tokyo: 105-121.
- Kruta, I., N.H. Landman, I. Rouget, F. Cecca, and N.L.Larson. 2010. The jaw apparatus of the Late Cretaceous ammonite Didymoceras. Journal of Paleontology 84(3):556-560.
- Cochran, J.K., K. Kallenberg, N.H. Landman, P.J. Harries, D. Weinreb, K.K. Turekian, A.J. Beck, and W.A. Cobban. 2010. Effect of diagenesis on the Sr, O, and C isotope composition of Late Cretaceous mollusks from the Western Interior Seaway of North America. American Journal of Science 310: 69-88.
- Landman, N.H., W.J. Kennedy, W.A. Cobban, and N.L. Larson.2010. Scaphites of the “nodosus group” from the Upper Cretaceous (Campanian) of the Western Interior of North America. American Museum of Natural History Bulletin 342: 1-242.
- Mapes, R.H., N.H. Landman, K. Cochran, C. Goiran, and B. Richer de Forges. 2010. Early taphonomy and significance of naturally submerged Nautilus shells from the New Caledonia region. Palaios. 25: 597-610.
- Mapes, R.H., L.A. Doguzhaeva, H. Mutvei, N.H. Landman, and K. Tanabe. 2010. The oldest known (Lower Carboniferous-Namurian) protoconch of a rostrum-bearing coleoid (Cephalopoda) from Arkansas, USA: phylogenetic and paleobiologic implications. Ferrantia 59: 114-125.
- Kruta, I., N.H. Landman, I. Rouget, F. Cecca, and P. Tafforeau. 2011. The role of ammonites in the Mesozoic marine food web revealed by jaw preservation. Science 331: 70-72.
- Bonacum, J., N.H. Landman, R.H. Mapes, M.W. White, A.J.White, and J. Irlam. 2011. Evolutionary radiation of Recent Nautilus and Allonautilus. American Malacological Bulletin 29:1-16.
- Palamarczuk, S., and N. H. Landman, 2011. Dinoflagellate cysts from the upper Campanian Pierre Shale and Bearpaw Shale of the U. S. Western Interior. Rocky Mountain Geology, v. 46 (2), pp. 137-164.
- De Baets, K., C.Klug, D. Korn, and N. H. Landman, 2012. Early evolutionary trends in ammonoid embryonic development. Evolution, v.66, pp. 1-19.
- Klofak, S. M., and N. H. Landman, 2012. Internal features of ammonitellas of tornoceratids from the Cherry Valley Limestone, New York State, U. S. A. In Neige, P., and I. Rouget (eds.), 8th International Symposium, Cephalopods- Present and Past, Dijon, Aug. 30- Sept. 2, 2010, Geobios, v. 45, pp. 49-56.
- Landman, N.H., M.P. Garb, R. Rovelli, D.S. Ebel, and L.E. Edwards. 2012. Short-term survival of ammonites in New Jersey after the end-Cretaceous bolide impact. Acta Palaeontologica Polonica v. 57(4), p. 703-715.
- Landman, N. H., W. A., Cobban, and N. L. Larson, 2012. Mode of life and habitat of scaphitid ammonites, In Neige, P., and I. Rouget (eds.), 8th International Symposium, Cephalopods- Present and Past, Dijon, Aug. 30- Sept. 2, 2010, Geobios, v. 45, pp. 87-98.
- Landman, N. H., J. K. Cochran, N. L. Larson, J. Brezina, M. Garb, and P. J. Harries, 2012. Methane seeps as ammonite habitats in the U.S. Western Interior Seaway revealed by isotopic analyses of well-preserved shell material. Geology, v. 40 (6), p. 507-510.
- Tanabe, K., Landman, N.H., and I. Kruta, 2012. Microstructure and mineralogy of the outer calcareous layer in the lower jaws of Cretaceous Tetragoniatoidea and Desmoceratoidea (Ammonoidea). Lethaia, v. 45, no. 2, p. 91-99.
- Landman, N. H., and Klofak, S.M. 2012. Anatomy of a concretion: Life, death, and burial in the Western Interior Seaway, Palaios, v. 27, pp. 672-693.
- Mapes, R.M., and Landman, N.H. 2012. An albino shell of Nautilus pompilius (Cephalopoda: Nautilidae) from the Philippines. The Nautilus, v. 126(3), pp. 113-116.
- Kruta, I., Landman, N., Rouget, I., Cecca, F., and Tafforeau, P. 2013. The radula of the Late Cretaceous scaphitid ammonite Rhaeboceras halli (Meek and Hayden, 1856). Palaeontology, v. 56, pp. 9-14.
- Landman, N.H., Remin, Z., Garb, M.P., and Chamberlain, J.A., Jr. 2013. Cephalopods from the Badlands National Park area, South Dakota: Reassessment of the position of the Cretaceous/Paleogene boundary. Cretaceous Research, v. 42, pp. 1-27.
- Dennis, K.J., Cochran, J.K., Landman, N.H., and Schrag, D.P. 2013. The climate of the Late Cretaceous: New insights from the application of the carbonate clumped isotope thermometer to Western Interior Seaway macrofossils. Earth and Planetary Science Letters, v. 362, pp. 51-65.
- Landman, N.H., Kennedy, W.J., Cobban, W.A., Larson, N.L., and Jorgensen, S.D. 2013. A new species of Hoploscaphites (Ammonoidea: Ancyloceratina) from cold methane seeps in the Upper Cretaceous of the U.S. Western Interior. American Museum Novitates
- Kruta, I. Landman, N.H., Mapes, R., and Pradel, A. 2013. New insights into the buccal apparatus of the Goniatitina: paleobiological and phylogenetic implications. Lethaia
Teaching ExperienceTeaching Experience
- Adjunct Professor, Department of Biology, City College
- Adjunct Professor, Department of Geology, Brooklyn College
- Susan Klofak, CUNY
- Kimberly Handle, CUNY
- Ekaterina Larina, Brooklyn College
- Remy Rovelli, Brooklyn College
- Joshua Slattery, Univ. of South Florida
- Jocelyn Sessa
- Isabelle Kruta
- Andrzej Kaim