cuticular ornamentation
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carapace — ( ) [Baba, 2005]. Entire animal, right appendages omitted, dorsal view, based on Munida. [Baba, 2005] ( ) [Baba, 2005]. Carapace, spines, based on Munida. [Baba, 2005] Head Shield cuticular structure arising from posterior margin of cephalon,… … Crustacea glossary
Ornatifilum — Temporal range: Late Silurian (Wenlock) Early Devonian (Lochkovian)[1] An Ornatifilum like fossil, identical to those described by Sherwood Pike and Gray … Wikipedia
Operculum (gastropod) — Gastropod shell of the freshwater snail Viviparus contectus with corneous operculum in place … Wikipedia
