Blastoid Collection

Pentrimites robustus, blastoid
Side view of a specimen from the Carboniferous (Mississipian), Illinois, USA - length 4 cm. Blastoids are extinct marine invertabrates belonging to the Phylum Echinodermata

Globoblastus sp. a fossil blastoid
Blastoids are small echinoderms that consist of a stem, a calyx and arms. The calyx contained the soft body parts of the animal and is pyramidal to globular in shape

Blastoidea; extinct stemmed echinoderm
Coloured lithograph by Ernst Haeckel from Kunstformen der Natur, 1899-1904. Date: 1904

Deltoblastus, a fossil blastoid
Deltoblastus, 1.5 cm in diameter, from the Permian of Timor. side view

Globoblastus sp. a fossil blastoid
Blastoids are small echinoderms that consist of a stem, a calyx and arms. The calyx contained the soft body parts of the animal and is pyramidal to globular in shape

Pentremites spicatus, blastoid
A Carboniferous blastoid from Grayson Co, Kentucky, U.S.A

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