strophomenid

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Ordovician — Period 488.3–443.7 million years ago … Wikipedia
Geologic time scale — This clock representation shows some of the major units of geological time and definitive events of Earth history. The Hadean eon represents the time before fossil record of life on Earth; its upper boundary is now regarded as 4.0 Ga.[1] Other… … 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
Craniforma — Temporal range: Ordovician– Recent … Wikipedia
Craniidae — Temporal range: Ordovician–Recent … 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
Strophomenida — Taxobox name = Strophomenida image size = 350px image caption = An Ordovician strophomenid with encrusting inarticulate brachiopods (the craniid Philhedra ) and a bryozoan. regnum = Animalia phylum = Brachiopoda subphylum = Rhychonelliformea… … Wikipedia

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