orthid
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Orthid — Or thid, n. (Zo[ o]l.) A brachiopod shell of the genus {Orthis}, and allied genera, of the family {Orthid[ae]}. [1913 Webster] … The Collaborative International Dictionary of English
orthid — or·thid … English syllables
Ordovician — Period 488.3–443.7 million years ago … Wikipedia
Maia (novel) — Maia 1st edition cove … Wikipedia
Early Ordovician — The Early Ordovician, also called the Lower Ordovician by geologists, is the first subdivision of the Ordovician period, and marked a great diversification in marine life, following the extinctions at the end of the Cambrian.Trilobites are joined … Wikipedia
Taxonomy of commonly fossilised invertebrates — Although the phylogenetic classification of sub vertebrate animals (both extinct and extant) remains a work in progress, the following taxonomy attempts to be useful by combining both traditional (old) and new (21st century) paleozoological… … Wikipedia
Frasnian Stage — ▪ paleontology lowermost of the two standard worldwide divisions of Late Devonian (Devonian Period) rocks and time. Frasnian time occurred between 385.3 million and 374.5 million years ago. The stage s name is derived from the town of… … Universalium
