A possible Early Cambrian chordate

[1]  J. Cracraft,et al.  The Early Evolution of Metazoa and the Significance of Problematic Taxa , 2009 .

[2]  S. Gabbott,et al.  A giant conodont with preserved muscle tissue from the Upper Ordovician of South Africa , 1995, Nature.

[3]  K. Peterson A phylogenetic test of the calcichordate scenario , 1995 .

[4]  Douglas H. Erwin,et al.  The Fossils of the Burgess Shale , 1994 .

[5]  H. Gee Return of the amphioxus , 1994, Nature.

[6]  D. Briggs,et al.  Decay of Branchiostoma: implications for soft‐tissue preservation in conodonts and other primitive chordates , 1993 .

[7]  D. Briggs,et al.  The anatomy of conodonts , 1993 .

[8]  L. Ramsköld,et al.  Composition and preservation of the Chengjiang fauna –a Lower Cambrian soft‐bodied biota , 1991 .

[9]  A. Cripps A new stem craniate from the Ordovician of Morocco and the search for the sister group of the craniata , 1990 .

[10]  C. Gans,et al.  STAGES IN THE ORIGIN OF VERTEBRATES: ANALYSIS BY MEANS OF SCENARIOS , 1989, Biological reviews of the Cambridge Philosophical Society.

[11]  Q. Bone,et al.  The ancestry of the vertebrates , 1987 .

[12]  D. Briggs,et al.  An enigmatic chordate from the Lower Carboniferous Granton ‘shrimp‐bed’ of the Edinburgh district, Scotland , 1987 .

[13]  J. Maisey HEADS AND TAILS: A CHORDATE PHYLOGENY , 1986, Cladistics : the international journal of the Willi Hennig Society.

[14]  P. Janvier,et al.  Hardistiella montanensis n. gen. et sp. (Petromyzontida) from the Lower Carboniferous of Montana, with remarks on the affinities of the lampreys , 1983 .

[15]  M. Jollie What are the ‘Calcichordata’? and the larger question of the origin of Chordates , 1982 .

[16]  E. Williams,et al.  The Phylogeny of Vertebrate , 1978 .

[17]  John Zachary Young,et al.  The Life of Vertebrates , 1951 .

[18]  B. F. Howell,et al.  Lower Cambrian Olenellus zone of the Appalachians , 1938 .

[19]  S. Morris Ediacaran-like fossils in Cambrian Burgess Shale-type faunas of North America , 1993 .

[20]  A. Simonetta,et al.  New animals from the Burgess Shale (Middle Cambrian) and their possible significance for the understanding of the Bilateria , 1993 .

[21]  A. Blieck At the orgin of chordates , 1992 .

[22]  Bobb Schaeffer,et al.  Deuterostome Monophyly and Phylogeny , 1987 .

[23]  P. Janvier,et al.  A second lamprey from the Lower Carboniferous (Namurian) of Bear Gulch, Montana (U.S.A.) , 1986 .

[24]  Zuckerman The life of vertebrates, 3rd edition , 1982 .