Delgadella

Delgadella
Temporal range:
A drawing of Delgadella lenaicus, Lena River, Yakutia
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: †Trilobita (?)
Order: †Agnostida
Family: †Hebediscidae
Genus: †Delgadella
Walcott, 1908
Species
  • D. lusitanica (Delgado, 1904) (type species) = Lingulepis lusitanica
  • D. caudatus (Delgado, 1904) = Delgadodiscus caudatus, Microdiscus caudatus
  • D. lenaicus (Toll, 1899) = Microdiscus lenaicus
Synonyms

Alemtejoia, Delgadodiscus, Delgadoia, Pagetiellus, Pentagonalia

Delgadella is a diminutive agnostid that lived during the late Lower Cambrian (Atdabanian to Botomian, over 500 million years ago) and has been found in Russia (Siberian Platform, Altay Mountains), Mongolia, Spain, Italy (Sardinia), Portugal, Morocco and Canada (Newfoundland). It can be recognized by its strongly effaced headshield and tailshield, with narrow but distinct furrows and borders along its margins, and three thorax segments.

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