Ptychopariida is a large, heterogeneous order of trilobite containing some of the most primitive species known. The earliest species occurred in the second...

diversified into the major orders that typified the Cambrian—Redlichiida, Ptychopariida, Agnostida, and Corynexochida. The first major crisis in the trilobite...

record along with trilobites from the Redlichiida, Corynexochida, and Ptychopariida orders, and were highly diverse throughout the Cambrian. Agnostidan...

small. The families of Harpetida were formerly included in the order Ptychopariida, but were recently given their own order (Ebach & McNamara 2002). The...

on the taxonomy and localities of Ordovician trilobites (Trilobita: Ptychopariida: Illaenidae, Panderidae) of Leningrad Region". BarSU Herald. Biological...

event. These typically small trilobites resemble those of the order Ptychopariida, from which the new order Proetida was separated in 1975 by Fortey and...

and planktonic forms like graptolites. The trilobites Agnostida and Ptychopariida completely died out, and the Asaphida were much reduced. Brachiopods...

2011. Archived from the original on 2020-11-12. Retrieved 2023-01-21. "Order Ptychopariida". A Guide to the Orders of Trilobites. Sam Gon III. 2009....

this order. The first representatives of the orders Corynexochida and Ptychopariida also appear very early on and may prove to be even earlier than any...

candidates for the first trilobites being librostomes in the order ptychopariida; and all post-Devoniantrilobites being in the order proetida, who are...

Yunnanocephalidae, although it is now thought the superfamily is within the Ptychopariida Agraulidae is a family of trilobites within the superfamily Ellipsocephaloidea...

†Redlichiida Order †Lichida Order †Phacopida Order †Proetida Order †Ptychopariida Order †Isoxyida Order †Hymenocarina Order †Mollisoniida Order †Bradoriida...

the Phacopida order and shares some characteristics with the order Ptychopariida, though it is not included in the subclass Librostoma. Phacopida was...

Diaphanometopidae are thought to have been an early transitional group between the Ptychopariida ancestors and all other Phacopina. Diaphanometopidae, are found in the...

classification Kingdom: Animalia Phylum: Arthropoda Class: Trilobita Order: Ptychopariida Superfamily: Ptychoparioidea Family: Menomoniidae Genus: Tavsenia...

Eukaryota Kingdom: Animalia Phylum: Arthropoda Class: †Trilobita Order: †Ptychopariida Suborder: †Olenina Superfamily: †Olenoidea Family: †Olenidae Burmeister...

trilobites in the fossil record as members of Redlichiina, although Ptychopariida and Eodiscina follow soon after. The suborder died out when the Lower...

Conocoryphidae is a family of trilobites within the order Ptychopariida. Members of this family have been recorded from the Cambrian to early Ordivician...

classification Kingdom: Animalia Phylum: Arthropoda Class: Trilobita Order: Ptychopariida Suborder: Olenina Superfamily: Olenoidea Family: Olenidae Genus: Cloacaspis...

and is the type genus of the family Ptychopariidae, and the order Ptychopariida. Fossils of the various species are found in Middle Cambrian-aged marine...

Ptychoparioidea is a superfamily of the Ptychopariida order of trilobites. Family Acrocephalitidae Family Alokistocaridae Family Antagmidae Family Asaphiscidae...

Cambrian Period and disappeared (possibly by evolving into members of the Ptychopariida order) at the end of the middle Cambrian. Cephalon: Opisthoparian facial...

Entomaspididae is thought to represent the transition between the ancestral Ptychopariida, and the harpetids. Many researchers question the validity of Entompaspididae...

Orders Agnostida Asaphida Corynexochida Harpetida Redlichiida Lichida Phacopida Proetida Ptychopariida Genera List of trilobites...

classification Kingdom: Animalia Phylum: Arthropoda Class: Trilobita Order: Ptychopariida Suborder: incertae sedis Family: Plethopeltidae Genus: Koldiniella...

(2015). "Systematic revision of the genus Solenopleura Angelin, 1854, Ptychopariida, Trilobita, Cambrian Series 3". Annales de Paléontologie. 101 (3): 185–192...

classification Kingdom: Animalia Phylum: Arthropoda Class: Trilobita Order: Ptychopariida Superfamily: Ptychoparioidea Family: Papyriaspididae Genus: Papyriaspis...

Scientific classification Kingdom: Animalia Phylum: Arthropoda Class: Trilobita Order: Ptychopariida Suborder: Olenina Family: Olenidae Genus: Rhodonaspis...

classification Kingdom: Animalia Phylum: Arthropoda Class: Trilobita Order: Ptychopariida Superfamily: Ellipsocephaloidea Family: Palaeonelidae Genus: Palaeolenella...

classification Kingdom: Animalia Phylum: Arthropoda Class: Trilobita Order: Ptychopariida Suborder: incertae sedis Family: Catillicephalidae Genus: Galeaspis...