Abstract

ABSTRACT Eggshell fragments collected from the Oldman Formation, southern Alberta, are described as Spheroolithus albertensis, oosp. nov. This oospecies exhibits a spheroolithid microstructure, sagenotuberculate outer surface ornamentation, and a shell thickness of 0.98–1.22 mm. A multilayering pathology of S. albertensis suggests that the egg laying taxon had a reptilian-like reproductive system.

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