21
3
July
469
533
COPE, J. C. W. 1978. The ammonite faunas and stratigraphy of the upper part of the Upper Kimmeridge Clay of Dorset. Palaeontology, 21, 3, 469–533.
John C. W. Cope Re-examination of 122-4 m of the Upper Kimmeridge Clay (Jurassic), from the Freshwater Steps Stone Band up to the Portland Sand of the type section, east of Kimmeridge, Dorset, has been undertaken, and bed-by-bed ammonite collections made throughout this thickness. The ammonites include representatives of three genera belonging to two subfamilies: twenty species and two subspecies are described. The following taxa are new: Pectinatites (Pectinatites) dorsetensis, P. (P.) strahani, P. (P.) circumligatus; Pavlovia composita, P. composita waddingtoni, P. superba; genus Virgatopavlovia, V.fittoni, V. hounstoutensis. The pallasioides Zone fauna is identified for the first time in Dorset, below the rotunda Zone, and a new zone, thefittoni Zone, introduced for the beds formerly correlated with the pallasioides Zone. Correlations are suggested with other areas of Britain and with the Volgian succession of Russia. The Palaeontological Association (Free Access)