1094 - Museum Grade Unique Spicomellus afer Oldest Ankylosaurian Dinosaur Dermal Spike - El Mers Fm Geological Samples is an iron sulfide with

is an iron sulfide with the chemical formula FeS2 (iron(II) disulfide)

New Zealand (1)

It displays strong pleochroism

They are partially disarticulated

olivine (Fa16

1094 - Museum Grade Unique Spicomellus afer Oldest Ankylosaurian Dinosaur Dermal Spike - El Mers Fm Geological Samples is an iron sulfide withScientific name: Spicomellus afer (Maidment et al., 2021) Ankylosaurian Dinosaur Dermal Spike Location: Boulemane, Atlas Mountains, Morocco Geological Formation: El Mers Fm = Guettioua Fm Age: Middle Jurassic, Bathonian Callovian, 167. 7164. 7 Ma Size: 11cm Ref: 1094 Spicomellus (meaning "collar of spikes") is an extinct genus of herbivorous ankylosaurian dinosaur that lived in the supercontinent Gondwana during the Middle Jurassic Period. The genus