﻿438 DE. A. VAUGHAN ON THE rAUJTAL STJCCESSION [Aug. I908, 



brachiopod-beds in D^, and that consequently our knowledge of 

 the Dj brachiopod-fauna is very incomplete.] 



The fauna of the DihunopJiyllum-'Limestoiies may, therefore, be 

 assigned to early D^. 



(2) The Lane Limestone,, Lane Conglomerate, and 

 Holmpatrick Limestone. 



(a) Pauna of the Lane Limestone (L25toL29). 



In ascending order : — 



r (x) includes Jj25d and L 27 a, b, c. 

 l(y) „ L27C?, e, L28 6, andL29a. 



(i) Corals : 



{x, y) Zaphrentis Omaliusi,\Q,Y. densa, Caxvxi^evs. "1^ v, ^ f 



(x) *Zaphrentis Omaliusi, var. amhigua, Carruthers. | ^^^ ^ ^^ 



(y) Densiphylloid Zaphrentis, sp. nov. 



(y) Campophyllid. Rare, and at the top only. 



(ii) Brachiopods : 



(y) Troductus humerosus, Sow. A single, poor specimen, found loose. 



(y) Chonetes cf. comoides (J. Sow.). Abundant, and of large size. 



<x, y) Schizophoria rempinata (Mart.). 



The abundance of Zaplirentis Omaliusi in the variants densa and 

 amhigua is a character common to the Lane Limestone, the E-ush 

 Slates, and the ZajyTirentis-Beds of the Colne area. 



The incoming of a Campophyllid at the top of the Lane Lime- 

 stone and the persistence of a small Zaphrentis into the basal beds 

 of the Holmpatrick Limestone indicate that the two Limestones, 

 although separated by the thick Lane Conglomerate, are faunally 

 continuous, and that the estimation of level may be deduced from 

 their joint fauna. 



(6) The Lane Conglomerate is unfossiliferous. 

 (e) Pauna of the Holmpatrick Limestone. 

 In ascending order : — 



(w) includes L 32 a and L 33 a. 



(x) „ L 34 h, a, and L 35 h. 



(y) „ L35candL36a. 



(z) „ L 37 a, 6, c, d, L 38 ^', L 39 a, and L 37 m, n. 



(i) Corals: 



(w, z) Syringopora cf. ramulosa (Qoldf.), Ed. & H. and vars. 



Common. 



(x) MickeU?iia cL tenuisept a (Phill.). Common. 



(z) Mickelinia meg astoma (Phill.) . Rare. 



(y) Zaphrentis cf. Enniskilleni, Ed. & H. (Densiphylloid 



variant.) 



(x, z) Campophyllum Murchisoni, Ed. & H., and variants. 



(z) ^Biphyphyllum suhihicinw/n (M'Coy). Abundant. 



(y) ■^Cllsiophyllid (a new genus). 



