Swiftopecten djoserus

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.

Swiftopecten djoserus
Temporal range: Late Pliocene
The holotype specimen of Swiftopecten djoserus (Yoshimura, 2017) from Toyama Pref., Japan, owned by National Museum of Nature and Science, Tokyo (No. PM27195).
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Bivalvia
Order: Pectinida
Family: Pectinidae
Genus: Swiftopecten
Species:
S. djoserus
Binomial name
Swiftopecten djoserus
Yoshimura, 2017

Origin of scientific name

Named for the Pyramid of Djoser in Saqqara, Egypt because the commarginal constrictions of Swiftopecten djoserus resemble the unique stepwise form of this pyramid. A noun in apposition.

References

    Yoshimura, Taro (2017). “A New Pliocene Species of Swiftopecten (Bivalvia: Pectinidae) from the Zukawa Formation in Toyama Prefecture, Central Japan”. Paleontological Research 21 (3): 293–303.

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