Cross-sectional slices of the left first costal plate obtained through CT scanning of the carapace of the holotype of Eochelone brabantica (specimen IRSNB R 0001) from the Lutetian (middle Eocene) of the Saint-Remy-Geest locality (Walloon Brabant, Belgium). a–c. 3D models of the ventral (a, b) and lateral (c) views digitized by photogrammetry. a1–a8. Perpendicular view of the hole along the XY plane; b1–b8. Perpendicular view of the hole along the YZ plane; c1–c4. Parallel view of the hole along the XZ plane. Scale bars: 2 cm. The arrow indicates the hypodense bone structure.

 
 
  Part of: Guerrero A, Smith T, Pérez-García A (2025) Bioerosional marks in the shells of two sea turtle taxa from the middle Eocene of Belgium. Fossil Record 28(1): 45-56. https://doi.org/10.3897/fr.28.e141743