Invertebrate
Aegirocassis
Aegirocassis was a radiodont from the Early Ordovician seas recorded in Morocco.
Aegirocassis was a radiodont from the Early Ordovician seas recorded in Morocco. Its paired swimming flaps and specialised feeding appendages give it a distinctive outline.
Three stages. One companion.
Game artwork
AI-generated, stylized game illustrations. These designs and growth stages are imaginative, not scientific reconstructions.
Aegirocassis at a glance
- Diet
- Filter feeder
- Its specialised appendages filtered small suspended food.
- When it lived
- Early Ordovician
- Group
- Radiodonta
- Radiodonts
- Fossil locations
- Fezouata, Morocco
- Places where fossils have been found
Beyond the game
The real Aegirocassis
Aegirocassis was a radiodont from the Early Ordovician seas recorded in Morocco. Its paired swimming flaps and specialised feeding appendages give it a distinctive outline.
Its specialised appendages filtered small suspended food. The paired swimming flaps and large head structures distinguish it from the grasping predatory forms of other radiodonts.
Fossil discoveries
Selected fossil records · present-day map
Map references
Potin, Gueriau & Daley 2023 — Radiodont frontal appendages from the Fezouata Biota ↗
Map location · Ternata plain, Lower Fezouata Shale, Morocco ↗
Map: Natural Earth, public domain. Fossil records: Paleobiology Database and linked collections and publications.Sources & text credits
Explore the references behind this profile.
- Van Roy, Daley and Briggs 2015 — Anomalocaridid trunk limb homology revealed by a giant filter-feeder with paired flaps
- Van Roy, Briggs and Gaines 2015 — The Fezouata fossils of Morocco; an extraordinary record of marine life in the Early Ordovician
- MCZ taxonomic record — Aegirocassis benmoulai
Original English Dinosgacha educational summaries informed by the linked scientific and museum references; source publications retain their own rights.