Spiny Comura bultyncki Trilobite

Matrix approx. size: 3" x 2.75" x 3"

Specimen approx. size: 3" x 1.75"

This specimen does have some restoration. The spines are original, but they were reattached during preparation.

The Devonian trilobite Comura bultyncki is one of the most ornate trilobites ever discovered. With branching spines, fine surface detail, and large compound eyes, it’s a fossil that highlights both the beauty and diversity of ancient marine life. Found in Morocco’s Devonian deposits, these trilobites are highly prized by collectors and make an unforgettable addition to any display.

Comura bultyncki belonged to the order Phacopida, a group of trilobites recognized for their large, compound eyes and detailed exoskeletons. Their dramatic appearance sets them apart:

• A broad cephalon (headshield) with projecting genal spines

• Large schizochroal eyes that provided exceptional vision

• A thorax with segments tipped by small spines

• An intricate pygidium (tailshield) armed with branching, defensive spines

• A surface covered with fine tubercles and granules, giving the trilobite a textured, armored look

Living in shallow Devonian seas, Comura likely crawled along reef bottoms, feeding on detritus or small invertebrates. Its spiny exoskeleton offered protection against predators such as eurypterids (sea scorpions) and early jawed fishes, while possibly also helping the trilobite stabilize itself in soft sediment.

The spectacular ornamentation of Comura bultyncki makes it a highly sought-after fossil. Well-prepared specimens show a three-dimensional display of spines that highlight the incredible diversity of trilobite evolution. Comura represents the acastid tendency toward hyper-ornamentation during the Devonian, a time when trilobite diversity was beginning to decline overall but produced some of the most spectacularly ornamented forms.