11. He also researched microfossils from the Scandinavian Silurian and Ordovician. 12. No calcitic shells are found there, but apatitic microfossils are present. 13. Fossils, including microfossils , are very rare in the Morrissey Formation. 14. We interpret that these are indeed microfossils from Mars. 15. To avoid confusion, microfossil assemblages were used to classify the chalk marl. 16. Hadrosaur eggshell fragments are however present in two microfossil sites in the area. 17. This classification was confirmed by microfossils of the ostracod " Pattersoncypris ". 18. Even microfossil data can be unreliable if there are hiatuses in the fossil record. 19. In this scientific quest, macrofossils, microfossils and trace fossils are typically analyzed. 20. Microfossils have been unearthed from holes riddling the otherwise barren surface of the dolomite.
