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Walcott 1886
78 apfu (atoms per formula unit)
Sources: Globidens sp : Fossilworks (Paleobiology Database)
It has been removed from a nodule-concretion
It is a tooth of the lower jaw of a cow shark
30568 - Rare 0.22 Inch Tasagnostus debori Middle Cambrian Trilobite - Tasmania, Australia Pseudobasiliscus Walcott 1886Tasagnostus, Jago 1976 (trilobite) Trilobita Agnostida PaleoDB taxon number: 19324 Parent taxon: Agnostida according to J. J. Sepkoski 2002 Sister taxa: Agnostidae, Agnostina, Agnostogonus, Agnostoidea, Aistagnostus, Allobodochus, Ammagnostidae, Armagnostus, Blystagnostus, Ceragnostus, Chatkalagnostus, Chelediscus, Clavagnostidae, Condylopygidae, Cristagnostus, Delagnostus, Dicerodiscus, Dignagnostus, Dolichoagnostus, Egyngolia, Euagnostus,
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