Note 98 — J. E. MARR, M.A., F.R.S. (continued 4)
Reading edition
It has been seen that some of the Ammonites appear earlier, namely, in Permian strata. Myophoria is extremely abundant in the Trias, but ranges into newer strata.
Reading edition
It has been seen that some of the Ammonites appear earlier, namely, in Permian strata. Myophoria is extremely abundant in the Trias, but ranges into newer strata.