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GEOLOGY OF THE TORONTO REGION

Zaphrentis bilateralis. Clathrodictyon vesiculosum. Orthis flabellites.

Platystrophia biforata. Anoplotheca planoconvexa.

Cataract        Dalmanella elegantula. T,eptaena rhomboidalis. Rhinopora verrucosa. Helopora fragilis.

Phaenopora explanata. Encrinurus punctatus. Acidaspis sp.

Medina       Arthrophycus alleghaniensis. Lingula cuneata.

Favosites niagarensis. Halysites catenulatus. Dictyonema retiforme. Aulocopina granti. Fenestella elegans. Pachydictya crassa. Spirifera niagarensis.

Clinton,   Pentamerus oblongus.

Rochester and   Spirifera crispus.

Lockport • •   Atrypa reticularis.

Whitfieldella (several species). Rhynchotreta cuneata americana. Caryocrinus ornatus.

Stephanocrinus angulatus.

Dawsonoceras annulatum americanum.

Bumastus ioxus.

Dalmanites limulurus.

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