swap_horiz Plegiocidaris coronata Alternatives
Looking for alternatives to Plegiocidaris coronata? Compare the top Sea Urchin options ranked by our AI scoring system.
Plegiocidaris coronata
Plegiocidaris coronata is an extinct species of cidaroid sea urchin known from Jurassic fossils. It belongs to the genus Plegiocidaris within the echinoid order Cidaroida, a group characterized by robust test plates and large primary spines. Museum and paleontological databases place the species in...
apps Top Plegiocidaris coronata Alternatives
The top alternative to Plegiocidaris coronata in 2026 is Micraster coranguinum with a score of 8.5/10, followed by Bothriocidaris (8.4) and Micraster cortestudinarium (8.2).
Micraster coranguinum
Micraster coranguinum is an extinct species of heart urchin—a type of irregular sea urchin—from the Late Cretaceous peri...
Bothriocidaris
Bothriocidaris is an extinct genus of sea urchin known from Ordovician marine rocks. It represents one of the earliest r...
Micraster cortestudinarium
Micraster cortestudinarium is an extinct species of heart urchin, a type of sea urchin, that lived during the Late Creta...
Archaeocidaris
Archaeocidaris is an extinct genus of echinoids, or sea urchins, known from the Late Devonian through the Late Permian o...
Phyllacanthus imperialis
Phyllacanthus imperialis is a species of sea urchin belonging to the family Cidaridae, commonly known as the imperial pe...
Echinocorys scutata
Echinocorys scutata is an extinct species of irregular sea urchin that existed during the Late Cretaceous to Paleocene p...
Nucleolites scutatus
Nucleolites scutatus is an extinct species of irregular sea urchin belonging to the cassiduloid order, first described b...
Melonechinus
Melonechinus is an extinct genus of echinoids, the group that includes sea urchins, known from Carboniferous fossil depo...
Eucidaris galapagensis
Eucidaris galapagensis, described by German zoologist Ludwig Döderlein in 1887, is a species of pencil urchin endemic to...
Eucidaris thouarsii
Eucidaris thouarsii is a species of slate-pencil sea urchin belonging to the family Cidaridae, described by Louis Agassi...
Archaeocidaris brownwoodensis
Archaeocidaris brownwoodensis is an extinct species of cidaroid sea urchin that lived during the Carboniferous period, a...
Tylocidaris clavigera
Tylocidaris clavigera is an extinct species of cidaroid sea urchin that existed during the Cretaceous period. As a membe...
Hemicidaris crenularis
Hemicidaris crenularis is an extinct species of regular sea urchin belonging to the family Hemicidaridae. The species wa...
Holectypus depressus
Holectypus depressus is an extinct holectypoid sea urchin named by Leske in 1778, notable as a Jurassic fossil found in...
Pseudodiadema hemisphaericum
Pseudodiadema hemisphaericum is an extinct species of regular sea urchin placed in the genus Pseudodiadema and the famil...
Rhabdocidaris nobilis
Rhabdocidaris nobilis is an extinct species of cidaroid sea urchin known from the Late Jurassic Canjuers conservation La...
Miocidaris coaeva
Miocidaris coaeva is an extinct cidaroid sea urchin known from Triassic fossil material. It belongs to the cidaroid line...
Acrosalenia hemicidaroides
Acrosalenia hemicidaroides is the name historically applied to an extinct Jurassic sea urchin described by Wright in 185...
Acrosalenia spinosa
Acrosalenia spinosa is an extinct species of regular sea urchin from the Jurassic period, notable for its prominent spin...
Aporocidaris milleri
Aporocidaris milleri is a deepwater ctenocidarid sea urchin described by Alexander Agassiz in 1898 and recorded in the G...
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