Alectryonia fossil oyster. Alectryonia, also known as Lopha, is a genus of marine bivalve molluscs in the family Ostreidae. They are known from the upper Triassic period up to present times. The shell is characteristically curved with a strongly ribbed outer valve, the smaller inside one being flat. This specimen is from late Jurassic deposits in Tulear Province, Madagascar. Actual length is 10 cm. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Wiersma, Dirk |
Bildgröße: | 5616 px × 3744 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |