Leptaena sp. and Brachiopods

Kingdom: Animalia Phylum: Brachiopoda Class: Strophomenata Order: Strophomenida Family: Rafinesquinidae Genus: Leptaena (Dalman, 1828) Three specimens; One specimen appears to be Leptaena sp. and the other two specimens are different species belonging to Rhychonellata. The Leptaena specimen is of the pedicle valve has thin costae (0.05 cm) and faint rugae. Prominent, convex anterior margin. Posterior margin is embedded into sediment. Faint sulcus (0.4 cm) The other two specimens are different species, likely belonging to Rhynchonellata. The larger specimen has thin costae (0.1 cm) and a convex pedicle valve, brachial valve is missing. Faint sulcus (0.7 cm). Small, triangular beak that curved towards the interior part of the valve. Faintly weathered specimen. Rounded/square anterior margin with a rounded posterior margin. The smallest specimen is of the pedicle valve with thin costae (0.1 cm). Prominent sulcus (0.4 cm). Rounded, elongated anterior margin and triangular posterior margin.