. Bulletin of the British Museum (Natural History), Geology. FROM THE SIERRA DE PERIjA, VENEZUELA 227 221) pointed out, Liddle records in his list of samples (Liddle, Harris & Wells 1943 : 313, sample 37) Heliophyllum halli and 'Heterophrentis venezuelense apparently in situ on the Cano del Oeste Formation outcrop in the Cano del Oeste section. In view of Liddle's statement in the text and the fact that Bowen's more extensive collections from the Cano del Oeste Formation do not contain these corals, it seems likely that sample 37 was in fact a displaced raft from the Cano Grande Formation
. Bulletin of the British Museum (Natural History), Geology. FROM THE SIERRA DE PERIjA, VENEZUELA 227 221) pointed out, Liddle records in his list of samples (Liddle, Harris & Wells 1943 : 313, sample 37) Heliophyllum halli and 'Heterophrentis venezuelense apparently in situ on the Cano del Oeste Formation outcrop in the Cano del Oeste section. In view of Liddle's statement in the text and the fact that Bowen's more extensive collections from the Cano del Oeste Formation do not contain these corals, it seems likely that sample 37 was in fact a displaced raft from the Cano Grande Formation such as are known to occur on this section. An even more anomalous situation, however, surrounds the original collection of fossils described by Weisbord (1926) and collected in 1924 by C. W. Yeakel in the company of P. W. McFarland and Liddle. According to Liddle (Liddle, Harris & Wells 1943, map) and Weisbord (1968 : 217) the collection was taken in the Cafio del Norte about 4-5 km north of the Rio Cachiri from the upper part of the Caiio Grande Formation. That the fauna is of Cafio Grande aspect can hardly be doubted, but Bowen (1972; Fig. 4) records no outcrop of this formation in, or even close to the Cafio del Norte. In fact the difference between Liddle's and Bowen's maps of this particular section is most striking. Weisbord (1926 : 223) does record that 'the majority of our fossils were collected from float' and this may be the explanation. Alternatively, it is possible, in this sort of country, that the site of the collection was wrongly located {fide Bowen). Unfortunately no definite solution. Fig. 2. Geological map of the upper reaches of the Rio Cachiri, Sierra de Perijd. showing sample locations (for further information see Appendix). The area covered here is indicated in Fig. i. Based on maps supplied by J. M. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appe
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