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Claessens, L.P.A.M. 2009. A cineradiographic study of lung ventilation in Alligator mississippiensis. Journal of Experimental Zoology A. DOI: 10.1002/jez.530. LINK

Claessens, L.P.A.M. 2009. The skeletal kinematics of lung ventilation in three basal bird taxa (emu, tinamou, and guinea fowl). Journal of Experimental Zoology A. DOI: 10.1002/jez.501. LINK

Claessens L.P.A.M.
, O’Connor P.M., Unwin D.M. 2009. Respiratory Evolution Facilitated the Origin of Pterosaur Flight and Aerial Gigantism. PLoS ONE 4(2): e4497. doi:10.1371/journal.pone.0004497. PDF

Claessens, L.P.A.M. 2006. Los huesos gastrales de los terópodos: insuflando vida a los dinosaurios [Theropod gastralia: breathing life into dinosaurs]. Fundamental 9: 1-72.


O’Connor, P.M., and L.P.A.M. Claessens, 2005. Evidence for basic avian pulmonary design and flow-through ventilation in nonavian theropod dinosaurs. Nature 436: 253-256. PDF


Claessens, L.P.A.M. 2004. Archosaurian respiration and the pelvic girdle aspiration breathing of crocodyliforms. Proceedings of the Royal Society of London B: Biological Sciences 271 (1547): 1461-1465. PDF


Claessens, L.P.A.M. 2004. Dinosaur gastralia; origin, morphology, and function. Journal of Vertebrate Paleontology 24 (1): 89-106. PDF


Claessens, L.P.A.M. 1997. Gastralia. In: Encyclopedia of Dinosaurs. Currie, P.J., and Padian, K. (Eds.), Academic Press, San Diego, pp. 269-270.



Published Abstracts:


Claessens, L.P.A.M., P.M. O’Connor, and D.M. Unwin 2007. Lung ventilation in pterosaurs. Wellnhofer Flugsaurier meeting, abstracts.


Neabore, S. Loewen, M., Zanno, L., Getty, M. and L. Claessens, 2007. Three-dimensional scanning and analysis of the first diagnostic ornithomimid forelimb material from the Late Cretaceous Kaiparowits Formation. Journal of Vertebrate Paleontology, 27 (Suppl. to 3): 123A.


Claessens, L.P.A.M. 2007. The relationship between skeletal constraint and pulmonary complexity in archosaurs. ICVM 8 Abstracts, Journal of Morphology, 268.


Wings, O., L.P.A.M. Claessens, and C.S. Sullivan, 2007. Crocodilian gastroliths past and present: their distribution and function. 5th Meeting of the European Association of Vertebrate Palaeontologists, Abstracts: 68.


Claessens, L.P.A.M., P.M. O’Connor, and D.M. Unwin 2006. Evolution of the respiratory apparatus and breathing mechanisms in Pterosauria. Journal of Vertebrate Paleontology, 26 (Suppl. to 3): 50A.


Claessens, L.P.A.M. 2005. The skeletal respiratory pump and archosaurian pulmonary evolution. Journal of Vertebrate Paleontology, 25 (Suppl. to 3): 45A-46A.


Claessens, L.P.A.M. 2004. The identity and function of the pterosaur prepubis. Journal of Vertebrate Paleontology, 24 (Suppl. to 3): 46A.


Claessens, L.P.A.M. 2004. Kinematics of crocodylian and avian lung ventilation: Investigating the evolution of breathing in extant and extinct Archosauria. Journal of Morphology, 260 (3): 283.


Claessens, L.P.A.M. 2003. The skeletal kinematics of lung ventilation in birds. Journal of Vertebrate Paleontology, 23 (Suppl. to 3): 41A.


Claessens, L.P.A.M. 2002. Analysis of the kinematics of lung ventilation in crocodylians. Integrative and Comparative Biology, 42 (6): 1208. (Also in: Society for Integrative and Comparative Biology Annual Meeting 2003, Abstracts: 136).


Claessens, L.P.A.M. 2002. Kinematic analysis of lung ventilation in crocodylians. Journal of Vertebrate Paleontology, 22 (Suppl. to 3): 44A.


Claessens, L.P.A.M. 2002. Gastralial aspiration in the Theropoda (Dinosauria), and the evolution of the avian lung. 6th Netherlands Earth Science Conference, Veldhoven, Abstracts, 5.1 (keynote address).


Claessens, L.P.A.M. 2001. The function of the gastralia in theropod lung ventilation. A. Watson Armour III Symposium, Abstracts, Field Museum, Chicago (invited).


Claessens, L.P.A.M., S.F. Perry and P.J. Currie. 1998. Reconstructing theropod lung ventilation. The Dinofest 1998 Symposium, Abstracts, 8-9.


Claessens, L.P.A.M., S.F. Perry and P.J. Currie. 1998. Using Comparative Anatomy to Reconstruct Theropod Respiration. Journal of Vertebrate Paleontology, 18 (Suppl. to 3): 34A.


Claessens, L.P.A.M. 1997. On the herpetofauna of some Neogene Eastern Mediterranean localities, and the occurrence of Palaeobatrachus and Bufo (Amphibia, Anura) in the Lower Miocene of Turkey. Journal of Vertebrate Paleontology, 17 (Suppl. to 3): 39A.


Claessens, L.P.A.M. 1996. Dinosaur gastralia and their function in respiration. Journal of Vertebrate Paleontology, 16 (Suppl. to 3): 28A.