. Bulletin of the British Museum (Natural History) Geology Supplement. ss JURASSIC RHYNCHONELLIDS Distribution. The distribution of the species is very uncertain and the only definite records are from the " Terrain a Chailles ", of northern France and the Swiss Jura around Basel. Occurrence. The specimens collected by the author at Pagny were from sandy limestones containing cherty bands and nodules. The large associated fauna con- sisted of ammonites, lamellibranchs, mainly Pholadomya and Lima types, and Thurmannella obtrita. T. obtrita was the most abundant element and tended to. 3
. Bulletin of the British Museum (Natural History) Geology Supplement. ss JURASSIC RHYNCHONELLIDS Distribution. The distribution of the species is very uncertain and the only definite records are from the " Terrain a Chailles ", of northern France and the Swiss Jura around Basel. Occurrence. The specimens collected by the author at Pagny were from sandy limestones containing cherty bands and nodules. The large associated fauna con- sisted of ammonites, lamellibranchs, mainly Pholadomya and Lima types, and Thurmannella obtrita. T. obtrita was the most abundant element and tended to. 3 8 3 6 Fig. 31. Transverse serial sections of Septaliophoria arduennensis (Oppel). Oxfordian. " Terrain a Chailles ". Pagny-sur-Meurse (Meurthe et Moselle). ( X3).. 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 British Museum (Natural History). London : BM(NH)
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