liik

Ptychoplasma conica Pieńkowski & Uchman, 2009

Taksoni kirjeldused

Pieńkowski & Uchman, 2009

Diagnosis. — Straight to slightly winding chain of hypichnial, mostly conical mounds, which can partly overlap.

Description. — Rows of hypichnial mounds on a sandstone bed. The mounds are conical or pouch-like, isometric or elongate, round to oval or slightly lobate ovalin outline, 13–38 mm wide, 18–35 mm long, as much as 30 mm high. The surface of the mounds is smooth, or only having irregular, gently sloping concavities of convexities. Their top is hemispherical or flat.

Sünonüümika
2009     Ptychoplasma conica isp. nov. — Pieńkowski & Uchman , lk. 401, joon. 3-6
Klassifikatsioon