96 Bush — Dates of Publication of Fossil Yertehrates. 



Art. X. — Note on the Dates of Publication of Certain 

 Genera of Fossil Yei'tebrates / by LrcY P. Bush. 



Several years ago while carrying on bibliographic work 

 under the direction of the late Professor Marsh, personal search 

 resnlted in the acquisition of exact data relating to the generic 

 names of certain vertebrates, the use of which by various 

 authors is not uniform. In the interest of science, it seems 

 wise to give these facts publicity. The object of the present 

 note, however, is not to decide whether the vertebrate fossils 

 in question should be classed under a given genus ; it is merely 

 to show which term has priority, leaving the subject of syn- 

 onymy to others more competent to judge in such matters. 



Cardiodon and Cetiosaurus. 



Cardiodon Owen, April, 1841, Odontography, vol. i, pt. ii, p. 291. 

 Cetiosaurus Owen, 1841, Proc. Geol. Soc. London, for June 30, vol. iii, pt. 

 ii, No. 80, p. 460. 



The dinosaurian genus Cardiodon was founded by Owen in 

 1841, on "an almost heart-shaped form of tooth" {Odontog- 

 raphy, vol. i, pt. ii, p. 291). The work in which the name 

 first occurs was published in three sections, and the second 

 part, containing the paragraph relating to Cardiodon, appeared 

 between April 15 and May 1, 1841.* As the paper in which 



* The Publishers' Circular, London, notes the date of publication of each 

 part of Owen's Odontography, as follows : — 



Part I (Dental System of Fishes, pp. 1-178), between March 16 and April 

 1, 1840 (see Circular for April 1, 1840, vol. iii, p. 96). 



Part II (Dental System of Reptiles, pp. 179-295), between April 15 and 

 May 1, 1841 (ibid, for May 1, 1841, vol. iv, p. 116). 



Part III (Dental System of Mammals, pp. 296-655), before March 2, 1846 

 (ibid, for March 2, 1846, vol. ix, p. 80 ; and The English Catalogue of Books 

 published from January, 1835, to January, 1863, p. 577, 1864). 



The foregoing work was issued in two editions — a quarto edition in two 

 volumes and a royal octavo edition in two volumes. Copies of both these 

 editions are in the library of Yale University Museum, and the pagination, 

 numbering of plates, etc., are identical in the two. The dedication is dated 

 June 18, 1845 ; the title page, preface, and table of contents were undoubt- 

 edly printed when the work was completed, while the introduction may have 

 been in part published at the same time as the third and last section (Circular, 

 vol. ix, p. 80), although some of it appeared earlier, as shown by the follow- 

 ing statement taken from The Life of Richard Owen (vol. i. p. 181, 1895) ; — 

 ** On April 27 [1841], as the diary shows, the Introduction was printed." 



Each of the 168 plates constituting vol. ii of Odontography is dated at the 

 bottom. Those accompanying Part I (Plates 1-61, 62B) bear the date 1840. 

 The plates in Part II (Plates 62-75«, exclusive of 625) are dated as follows : 

 Plates 62, 62^1, 63, 64-66, 68, 70-75, 1840 ; Plates 63^, 635, 67, 69, 1841, and 

 Plate 75a, 1844. In Part III (Plates 76-150), Plates 77-79, 81-84, 87, 91-93 

 are dated 1840 ; Plates 76, 80, 85, 86, 89, 89^, 94, 1841 ; Plates 87rt, 101, 106, 

 129, 130, and 143, 1844, while Plates 90, 95-100, 102-105, 107-128, 131-142, 



