Graptolites from the Kashmir Himalayas, also a Note on the Discovery of Fossils in the Muth Quartzite
Abstract
IN continuation of our note1 ``Graptolites in the Indian sub-continent'', field work was recommenced by one of us (V. J. G.) earlier in 1964 and resulted in further graptolite discoveries. The doubt conveyed in our previous note in referring the graptolites we illustrated to Didymograptus (?) was well founded because examination of these by Dr. C. J. Stubblefield revealed sicular structures of Monograptid type and he refers the figured specimens to Monograptus cf. vulgaris Wood and to M. cf. colonus (Barrande) of Lower Ludlow (Silurian) age. Additional graptolites collected this year from 3 ft. higher in the succession he refers to Monograptus cf. dubius (Suess), a species which, in Europe, ranges from Wenlock to Lower Ludlow in age. Further Monograptids were found associated with an internal mould of Cardiola cf. interrupta Broderip 30 ft. below M. cf. dubius; in Europe this lamellibranch species ranges from Wenlock to Ludlow. Thus we surmise that these 30 ft. of mudstones are of Lower Ludlow age, but possibly include some Wenlock.
- Publication:
-
Nature
- Pub Date:
- December 1964
- DOI:
- 10.1038/2041081a0
- Bibcode:
- 1964Natur.204.1081S