Assessment of serpulid-hydroid association through the Jurassic: A case study from the Polish Basin
Fig 4
Visualization of the bioclaustrated hydroid colony Protulophila gestroi by the host serpulid Propomatoceros lumbricalis from the Middle Bathonian of Gnaszyn Dolny, GIUS 8-3730/8.
A. External left side of the tube showing bioclaustrated apertures after hydroids (aper). B-C. The same side showing the morphology and internal arrangement of hydroid zooids (zoo) and stolons (sto), magnified in C. D. Right side of the tube showing bioclaustrated apertures after hydroids (aper) and numerous microborings (mic). E. The same side showing the morphology and internal arrangement of hydroid zooids (zoo) and stolons (sto). F. Isolated system of stolons and hydroid zooids embedded within the tube showed in C. Serpulid aperture is on the top. Scale bars: 1 mm (A-F).
