Opabinia regalis is an extinct, stem group arthropod found in the Middle Cambrian Burgess Shale Lagerstätte (505 million years ago) of British Columbia...

arthropod. For example, Graham Budd's analyses of Kerygmachela in 1993 and of Opabinia in 1996 convinced him that these animals were similar to onychophorans...

extinct family of marine stem-arthropods. Its type and best-known genus is Opabinia. It also contains Utaurora, and Mieridduryn. Opabiniids closely resemble...

group compose of Radiodonta (Anomalocaris and relatives), Opabiniidae (Opabinia and relatives), and the "gilled lobopodians" Pambdelurion and Kerygmachelidae...

far the only other known unquestionable opabiniid, with the other being Opabinia itself. There are other animals like Myoscolex and Mieridduryn that could...

"Xenusians" or "Xenusiids" (class Xenusia). Certain Dinocaridid genera, such as Opabinia, Pambdelurion, and Kerygmachela, may also be regarded as lobopodians, sometimes...

the Burgess Shale fauna. Several of the finds, including the enigmatic Opabinia and Anomalocaris have some, though not all, features associated with arthropods...

early marine predator, a member of the stem-arthropod group Radiodonta Opabinia was a bizarre stem-arthropod that possessed five stalked eyes, and a fused...

Opabinia sparked modern interest in the Cambrian explosion....

he wanted to call his book Homage to Opabinia. Gould wrote: I believe that Whittington's reconstruction of Opabinia in 1975 will stand as one of the great...

the most publicity, for example: Whittington's first presentation about Opabinia made the audience laugh. The reconstruction showed a soft-bodied animal...

mixture of characters resembling various Cambrian arthropod taxa, notably Opabinia (eyes), radiodonts (frontalmost appendages) and megacheirans (trunk). The...

researchers that many of the Burgess Shale's "weird wonders", such as Opabinia and Hallucigenia, were evolutionary "aunts and cousins" of present-day...

pteryx. Others pointed to a general resemblance between Tullimonstrum and Opabinia regalis, although Cave et al. note that they were too morphologically dissimilar...

Cambrian life: a commentary on Whittington (1975) 'The enigmatic animal Opabinia regalis, Middle Cambrian, Burgess Shale, British Columbia'". Philosophical...

explosion. Invertebrates are grouped into different phyla (body plans). Opabinia, an extinct stem group arthropod appeared in the Middle Cambrian: 124–136 ...

lobopodians with gill-bearing lateral flaps and also includes Kerygmachela and Opabinia. The gilled lobopodians are the closest relatives of the arthropods among...

a member of any known arthropod class. Organisms such as the five-eyed Opabinia and spiny slug-like Wiwaxia were so different from anything else known...

hypothesis derives tactopoda from a clade encompassing dinocaridids and Opabinia. A 2023 analysis concluded, on the basis of numerous morphological similarities...

transitional forms between typical lobopodians and basal arthropods (e.g. Opabinia and Radiodonta). The positions of most other lobopodians (e.g. Hallucigenia...

the large bio-diversification event that occurred during the Cambrian. Opabinia, a genus of bizarre stem-group arthropod distantly related to the radiodonts...

arthropod-like organisms found in the Burgess Shale. Other examples are Opabinia and Yohoia. The unusual and varied characteristics of these creatures were...

Utaurora Opabinia...

Opabinia Radiodonta Euarthropoda...

When it was first described, the Cambrian fossil Opabinia was thought to be unrelated to any known phylum. Later discoveries have shown it to be closely...

distinguish the features: a famous example is the triangular extensions in Opabinia, which were interpreted as either legs or extensions of the gut. Elemental...

their body size and probably benthic or endobenthic prey. The opabiniids Opabinia (top) and Utaurora (bottom), were close relatives of the radiodonts The...

Kimberichnus Vernanimalcula Burgess-type Marrella Radiodonts Halwaxiids Opabinia Odontogriphus Small shelly fauna Helcionellids Evolutionary concepts Trends...

lagerstätte increased interest in the issue when it revealed animals, such as Opabinia, which did not fit into any known phylum. At the time these were interpreted...

only the slightest resemblance to other known animals. Examples include Opabinia, with five eyes and a snout like a vacuum cleaner hose and Hallucigenia...