. Conodonts of the Lower Border group and equivalent strata (lower carboniferous) in Northern Cumbria and the Scottish Borders, Conodonts; Paleontology; Paleontology; Conodonts; Paleontology. Uncommon I L Very rare Uncommon Less common HM 1 M Very rare Uncommon Common Uncommon Common TEXT-FIG. 12. The nine possible pairings of Pa elements of Taphrognathus varians morphotype HI in the present study. Relative fre- quency categories based on the results of Spearman's rank correlation of blade position/curvature TEXT-FIG. 13. Likely Pa element pairing in Taphrognathus vari- ans
. Conodonts of the Lower Border group and equivalent strata (lower carboniferous) in Northern Cumbria and the Scottish Borders, Conodonts; Paleontology; Paleontology; Conodonts; Paleontology. Uncommon I L Very rare Uncommon Less common HM 1 M Very rare Uncommon Common Uncommon Common TEXT-FIG. 12. The nine possible pairings of Pa elements of Taphrognathus varians morphotype HI in the present study. Relative fre- quency categories based on the results of Spearman's rank correlation of blade position/curvature TEXT-FIG. 13. Likely Pa element pairing in Taphrognathus vari- ans morphotype II (based on the collection of Austin and Mitchell, 1975; and this study). Letters indicate blade position/ curvature categories. and occupies most of the lower surface of the element. It is widest and deepest at element midlength and bears a medial groove. Posteriorly the cavity tapers gently to the end of the element. DISCUSSION The single Pa element of Taphrognathus sp. a differs from other species of Taphrognathus chiefly in the form of the anterior blade, the roundedness of the parapet crests, and the shallowness of the medial trough. It is very similar to specimens identified as Cloghergnathus sp. A and Taph- rognathus sp. B, in Marchant (1978) and Rees (1987) respectively. 29. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Purnell, Mark A. (Mark Andrew), 1964-; Royal Ontario Museum. Toronto : Royal Ontario Museum
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