Lopha

Lopha
Temporal range: Triassic - Recent
Fossil Lopha sp. from Upper Cretaceous, France
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Ostreida
Family: Ostreidae
Genus: Lopha
Röding, 1798
Synonyms
  • Alectryonia Fischer von Waldheim, 1807

Lopha is a genus of marine bivalve molluscs in the family Ostreidae.

The genus Lopha is present from the Triassic period in the Lower Norian age (216.5 ± 2.0 – 203.6 ± 1.5 Mya) to the recent age.

Description

Lopha species have thick, strongly ribbed shells with unequal valves. The margins of the valves have a characteristic zig-zag pattern. The lower valve shows finger-like outgrowths, by which the molluscs adhere to the substrate. These molluscs are stationary, epifaunal, suspension feeders, as they feed by filtering sea water to extract the nutrients.

Species

Fossil species

References