Article · Wikipedia archive · Last revised Aug 5, 2026

Ramonalinidae

Ramonalinidae is an extinct family of marine bivalve molluscs from the late Anisian. It was an edgewise-recliner with a flattened anteroventral surface and partially fused valves. They formed distinctive mud mounds.

Last revised
Aug 5, 2026
Read time
≈ 1 min
Length
107 w
Citations
3
Source
Ramonalinidae
Temporal range:
Ramonalina ramanensis (Triassic, southern Israel)
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Pteriida
Superfamily: Ambonychioidea
Family: Ramonalinidae
Yancey et al. 20091
Genera

See text

Ramonalinidae is an extinct family of marine bivalve molluscs from the late Anisian (early Middle Triassic). It was an edgewise-recliner with a flattened anteroventral surface (on which it rested) and partially fused valves. They formed distinctive mud mounds.2

Taxonomy

  • Ramonalina is thus far the only known genus.2
References

References