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Platysiagum, the Glossary

Platysiagum is an extinct genus of prehistoric bony fish belonging to the family Platysiagidae.^[1]

Actinopterygii

Actinopterygii, members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species.

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Animal

Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia.

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Anisian

In the geologic timescale, the Anisian is the lower stage or earliest age of the Middle Triassic series or epoch and lasted from million years ago until million years ago.

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A chordate is a deuterostomic animal belonging to the phylum Chordata. All chordates possess, at some point during their larval or adult stages, five distinctive physical characteristics (synapomorphies) that distinguish them from other taxa.

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Early Jurassic

The Early Jurassic Epoch (in chronostratigraphy corresponding to the Lower Jurassic Series) is the earliest of three epochs of the Jurassic Period.

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Extinction

Extinction is the termination of a taxon by the death of its last member.

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Family (biology)

Family (familia,: familiae) is one of the nine major hierarchical taxonomic ranks in Linnaean taxonomy.

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Genus

Genus (genera) is a taxonomic rank above species and below family as used in the biological classification of living and fossil organisms as well as viruses.

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List of prehistoric bony fish genera

This list of prehistoric bony fish is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be bony fish (class Osteichthyes), excluding purely vernacular terms.

See Platysiagum and List of prehistoric bony fish genera

Lists of prehistoric fish

Prehistoric fish are early fish that are known only from fossil records.

See Platysiagum and Lists of prehistoric fish

Middle Triassic

In the geologic timescale, the Middle Triassic is the second of three epochs of the Triassic period or the middle of three series in which the Triassic system is divided in chronostratigraphy.

See Platysiagum and Middle Triassic

Osteichthyes

Osteichthyes, also known as osteichthyans or commonly referred to as the bony fish, is a diverse superclass of vertebrate animals that have endoskeletons primarily composed of bone tissue.

See Platysiagum and Osteichthyes

Platysiagidae

Platysiagidae is an extinct family of stem-neopterygian ray-finned fish which lived from the Early Triassic to the Early Jurassic. Platysiagum and Platysiagidae are prehistoric neopterygii and prehistoric ray-finned fish stubs.

See Platysiagum and Platysiagidae

Sir Philip Grey Egerton, 10th Baronet

Sir Philip de Malpas Grey Egerton, 10th Baronet FRS (13 November 1806 – 5 April 1881) was an English palaeontologist and Conservative politician from the Egerton family.

See Platysiagum and Sir Philip Grey Egerton, 10th Baronet

References

[1] https://en.wikipedia.org/wiki/Platysiagum

Platysiagum, the Glossary

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