Swiftopecten djoserus

{{Short description|Extinct species of bivalve}}

{{Multiple issues|

{{Primary sources|date=November 2023}}

{{No footnotes|date=November 2023}}

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{{Speciesbox

| fossil_range = {{fossil range|Late Pliocene}}

| image = Swiftopecten djoserus Yoshimura.jpg

| image_caption = The holotype specimen of Swiftopecten djoserus (Yoshimura, 2017) from Toyama Pref., Japan, owned by National Museum of Nature and Science, Tokyo (No. PM27195).

| genus = Swiftopecten

| species = djoserus

| authority = Yoshimura, 2017

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Swiftopecten djoserus '(Yoshimura, 2017) is an extinct species of bivalve belonging to the subclass Pteriomorphia and family Pectinidae that lived during the Late Pliocene, approximately 2.75 Ma. Their two valves have step-like growth ribs.