Page:Quarterly Journal of the Geological Society of London, vol. 33.djvu/29

Section of Bradford-Abbas (East-Hill) Quarry.

			ft.	in.	$\scriptstyle {\left\{{\begin{matrix}\ \\\ \end{matrix}}\right.}$	Trigonia Grit of Buckman, Geol. of Cheltenham.
1.	Soil ................................................................................................................................................................................................................................................................................................................................................................................................		0	4
2.	White oolite with irregular cleavage ................................................................................................................................................................................................................................................................................................................................................................................................		6	0	$\scriptstyle {\left.{\begin{matrix}\ \\\\\ \\\ \\\ \\\ \\\ \\\ \\\ \\\ \\\ \ \end{matrix}}\right\}\,}$	Cephalopoda-bed =Gryphite Grit of Buckman.
3.	Band of marl, with Astarte and Lima, Belemnites, &c. ................................................................................................................................................................................................................................................................................................................................................................................................	$\scriptstyle {\left.{\begin{matrix}\ \end{matrix}}\right\}\,}$	0	3
4.	Hard ironshot rock, with Ammonites, Belemnites, &c. ................................................................................................................................................................................................................................................................................................................................................................................................	$\scriptstyle {\left.{\begin{matrix}\ \end{matrix}}\right\}\,}$	1	0
5.	Band of brownish stone, marly at top, full of Univalves and Ammonites ................................................................................................................................................................................................................................................................................................................................................................................................	$\scriptstyle {\left.{\begin{matrix}\ \end{matrix}}\right\}\,}$	0	6
6.	Ironshot oolite, a mass of Cephalopods ................................................................................................................................................................................................................................................................................................................................................................................................		1	0
7.	Marl with Astarte trigonalis ................................................................................................................................................................................................................................................................................................................................................................................................		0	3
8.	Bed with A. aalensis ................................................................................................................................................................................................................................................................................................................................................................................................		0	9
9.	Blue-centred oolite, with Isocardia concentrica ................................................................................................................................................................................................................................................................................................................................................................................................		1	2
10.	Reddish sands, commencing the lower freestone system of the Cotteswolds.

How far the term Cephalopoda-bed for the fossiliferous portion of this section may be justified will at once be seen from the following list of the family of fossils after which it has been named, the whole of which have been found at Bradford Abbas, or the equivalent bed near Sherborne.

List of Cephalopoda from the Dorset equivalent of the "Gryphite Grit."

Belemnites compressus, Blainv.
——— ellipticus, Miller.
——— giganteus, Phill.
——— abbreviatus, Sow.
——— canaliculatus, Schl.
——— Blainvillii, Voltz.
——— terminalis, Phill.
——— anomalus, Phill.
——— sulcatus, Mill.
Ammonites Truelli, D'Orb.
——— subradiatus, Sow.
——— læviusculus, Sow.
——— Murchisonæ, Sow.
——— Sowerbyi, Miller.
——— cadomensis, D'Orb.

——— Parkinsoni, Sow., including
A. niortensis, D'Orb., and
A. dorsetensis, Wright.

Ammonites Garantianus, D'Orb.
——— polymorphus, D'Orb.
——— Martinsii, D'Orb.
——— ooliticus, D'Orb.
——— Eudesianus, D'Orb.
——— zigzag, D'Orb.
——— Tessonianus, D'Orb.
——— Edouardianus, D'Orb.
——— discus, Sow.
——— Blagdeni, Sow.
——— Humphresianus, Sow.
——— Braikenridgii, Sow.
——— linguiferus, D'Orb.
——— Brongniartii, Sow.
——— Kaumontii, D'Orb.
——— Sauzei, D'Orb.
——— Gervillii, Sow.
——— dimorphus, D'Orb.

and others, with some undescribed forms.

Ancyloceras annulatum, D'Orb.
——— bispinatum, D'Orb.

Ancyloceras subannulatuin, D' Orb.

(From D'Orbigny's Lias list.)

Nautilus latidorsatus, D' Orb.
——— striatus, Sow.
——— semistriatus, D' Orb.
——— inornatus, D' Orb.
——— truncatus, Sow.
——— excavatus, Sow.
——— lineatus, Sow.
——— sinuatus, Sow.
——— clausus, Sow.

Ammonites candidus, D' Orb., aalensis, Ziet.
——— cornucopia, Young.
——— jurensis, Ziet.
——— Germainii, D' Orb.
——— insignis, Schubler.
——— variabilis, D' Orb.
——— concavus, Sow.
——— torulosus, D'Orb.

and others.