Hebertella occidentalis

Kingdom: Animalia Phylum: Brachiopoda Class: Rhynchonellata Order: Orthida Family: Plectorthidae Genus: Hebertella (Hall and Clarke, 1892) Species: Hebertella occidentalis (Hall, 1847) Six specimens; The two largest specimens are H. occidentalis. The specimens have both the brachial and pedicle valves preserved except for the largerest specimen that only has the brachial valve preserved. H. occidentalis has thin ribs and slight growth lines near the anterior margin. Slightly convex near the posterior margin. Rounded anterior margin and fairly straight posterior margin. The other specimens have larger ribs and more prominent fold and sulcus.