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- Proetida abstract "Proetida is an order of trilobite that lived from the Ordovician to the Permian. It was the last order of trilobite to go extinct, finally dying out in the Permian extinction.These typically small trilobites resemble those of the order Ptychopariida, from which the new order Proetida was only recently separated in 1975 by Fortey and Owens. Like the order Phacopida, the proetids have exoskeletons that sometime have pits or small tubercles, especially on the glabella (middle portion of the head). Because of their resemblance to the Ptychopariida in some features, the proetids are included in the subclass Librostoma.Unlike the trilobites of the Phacopid suborder Phacopina, whose eyes are schizochroal, the proetids have the more common holochroal eyes. These eyes are characterized by close packing of biconvex lenses beneath a single corneal layer that covers all of the lenses. Each lens is generally hexagonal in outline and in direct contact with the others. They range in number from one to more than 15,000 per eye. Eyes are usually large, and because the individual lenses are hard to make out, they look smooth and sometimes bead-like.The thorax of proetids was made up of anywhere between 8–22 segments, but most commonly 10. Many also have genal spines coming off either side of the head, though in some they are blunted. These two features can aid in distinguishing proetids from some Phacopid trilobites in the suborder Phacopina, to which they can be very similar.The following superfamilies and families are recognised:AulacopleuroideaAulacopleuridaeBrachymetopidaeRorringtoniidaeBathyuroideaBathyuridaeDimeropygidaeHolotrachelidaeHystricuridaeRaymondinidaeTelephinidaeToernquistiidaeProetoideaProetidaePhillipsiidae Tropidocoryphidae↑ ↑".
- Proetida class Trilobite.
- Proetida class Librostoma.
- Proetida kingdom Animal.
- Proetida phylum Arthropod.
- Proetida thumbnail Aulacopleura_konincki.jpg?width=300.
- Proetida wikiPageID "1816401".
- Proetida wikiPageRevisionID "598466968".
- Proetida classis Trilobite.
- Proetida fossilRange "Early Ordovician – End Permian,".
- Proetida hasPhotoCollection Proetida.
- Proetida imageCaption "Aulacopleura konincki 14mm, collected near Kosovu Beruna, Czech Republic, Silurian".
- Proetida name "Proetida".
- Proetida ordo "Proetida".
- Proetida ordoAuthority "Fortey & Owens, 1975".
- Proetida phylum "Arthropoda".
- Proetida regnum "Animalia".
- Proetida subclassis Librostoma.
- Proetida subject Category:Proetida.
- Proetida subject Category:Trilobites.
- Proetida type Animal100015388.
- Proetida type Arthropod101767661.
- Proetida type Invertebrate101905661.
- Proetida type LivingThing100004258.
- Proetida type Object100002684.
- Proetida type Organism100004475.
- Proetida type PhysicalEntity100001930.
- Proetida type Trilobite101768244.
- Proetida type Trilobites.
- Proetida type Whole100003553.
- Proetida type Animal.
- Proetida type Eukaryote.
- Proetida type Species.
- Proetida type Organism.
- Proetida comment "Proetida is an order of trilobite that lived from the Ordovician to the Permian. It was the last order of trilobite to go extinct, finally dying out in the Permian extinction.These typically small trilobites resemble those of the order Ptychopariida, from which the new order Proetida was only recently separated in 1975 by Fortey and Owens. Like the order Phacopida, the proetids have exoskeletons that sometime have pits or small tubercles, especially on the glabella (middle portion of the head).".
- Proetida label "Proetida".
- Proetida label "Proetida".
- Proetida label "Proetida".
- Proetida label "Proetida".
- Proetida label "Proetida".
- Proetida sameAs Proetida.
- Proetida sameAs Proetida.
- Proetida sameAs Proetida.
- Proetida sameAs m.05z6w_.
- Proetida sameAs Q1934211.
- Proetida sameAs Q1934211.
- Proetida sameAs Proetida.
- Proetida wasDerivedFrom Proetida?oldid=598466968.
- Proetida depiction Aulacopleura_konincki.jpg.
- Proetida isPrimaryTopicOf Proetida.
- Proetida name "Proetida".
