GYMNOCODIACEAE Elliott, 1955

Vachard, D, Krainer, K & Lucas, SG, 2015, Late Early Permian (late Leonardian; Kungurian) algae, microproblematica, and smaller foraminifers from the Yeso Group and San Andres Formation (New Mexico; USA), Palaeontologia Electronica (English ed.) 3 (8), pp. 1-77 : 16

Family GYMNOCODIACEAE Elliott, 1955 Genus GYMNOCODIUM Pia, 1920 emend. Elliott, 1955

Type Species. Gyroporella bellerophontis Rothpletz, 1894 .

Description. Gymnocodiaceae characterised by thallus rarely hollow and/or bifurcated; elongate cone shaped to pinching and swelling, circular in cross section. Medullar siphons oblique, numerous, preserved in the form of short segments; cortical siphons not ramified and with relatively wide deltoid terminations.

Occurrence. FAD poorly known; LAD at the Permian-Triassic Boundary. Common and cosmopolitan in the Late Permian (Carnic Alps, Southern Alps, Croatia, Montenegro, Serbia, Hungary, Greece, Tunisia, Turkey, Armenia, North Caucasus, Iran, Iraq, Saudi Arabia, Oman, Afghanistan, Pakistan, Ladakh, Tibet, South China, Thailand, Malaysia, Laos, Cambodia, Viet Nam, Japan, New Zealand, New Mexico, Guatemala).