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Calymenina
Calymenina is a suborder of the trilobite order Phacopida Phacopida ("lens-face") is an order of trilobites that lived from the Late Cambrian to the Late Devonian. It is made up of a morphologically diverse assemblage of taxa in three related suborders. Characteristics Phacopida had 8 to 19 thoraci .... References Phacopida Prehistoric animal suborders Arthropod suborders Devonian trilobites Trilobites of Australia {{Phacopida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phacopida
Phacopida ("lens-face") is an order of trilobites that lived from the Late Cambrian to the Late Devonian. It is made up of a morphologically diverse assemblage of taxa in three related suborders. Characteristics Phacopida had 8 to 19 thoracic segments and are distinguishable by the expanded glabella, short or absent preglabellar area, and schizochroal (Phacopina) or holochroal (Cheirurina and Calymenina) eyes. Schizochroal eyes are compound eyes with up to around 700 separate lenses. Each lens has an individual cornea which extended into a rather large sclera. The development of schizochroal eyes in phacopid trilobites is an example of post-displacement paedomorphosis. The eyes of immature holochroal Cambrian trilobites were basically miniature schizochroal eyes. In Phacopida, these were retained, via delayed growth of these immature structures (post-displacement), into the adult form. '' Eldredgeops rana'' (Phacopidae) and '' Dalmanites limulurus'' (Dalmanitidae) are tw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calymenina
Calymenina is a suborder of the trilobite order Phacopida Phacopida ("lens-face") is an order of trilobites that lived from the Late Cambrian to the Late Devonian. It is made up of a morphologically diverse assemblage of taxa in three related suborders. Characteristics Phacopida had 8 to 19 thoraci .... References Phacopida Prehistoric animal suborders Arthropod suborders Devonian trilobites Trilobites of Australia {{Phacopida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colpocoryphe Grandis
''Colpocoryphe'' is a genus of trilobites in the family Calymenidae. Morphology * Convex Cephalon * Trapezoidal glabellae, frequently distinctly furrowed and surelevated compared to the axis. * Dorsal furrows slightly convergent forwardly with almost linear anterior parts. : Broad dorsal furrows, deep and not well defined. : 3, rather 4, well defined lateral furrows * Librigenæ without lateral area or lateral furrow. * Preglabellar field very short, downward oriented. * Inflated occipital ring with smooth lateral ends. * Occipital furrow broad and deep. * Eye ridges rather weak. * Anterior cephalic notch marked, with frequently parallel edges. * Thorax : Strongly convex axis. * Triangular Pygidium * Convex axis, with segmentation well defined. * 6 - 8 axial rings. * Pleurae with deep border furrows. * Axis extending nearly to posterior margin (large posterior terminal piece), connected to : it by short postaxial ridge. * Pleural fields behind articulating half-ribs nearly smoot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calymenidae
Calymenidae is a family of trilobite Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the ...s, containing the following genera: *'' Alcymene'' *'' Apocalymene'' *'' Arcticalymene'' *'' Calymene'' *'' Calymenella'' *'' Calymenesum'' *'' Colpocoryphe'' *'' Dekalymene'' *'' Diacalymene'' *'' Flexicalymene'' *'' Gravicalymene'' *'' Limbocalymene'' *'' Linguocalymene'' *'' Liocalymene'' *'' Metacalymene'' *'' Neseuretinus'' *'' Neseuretus'' *'' Nipponocalymene'' *'' Onnicalymene'' *'' Papillicalymene'' *'' Paracalymene'' *'' Platycalymene'' *'' Pradoella'' *'' Protocalymene'' *'' Reacalymene'' *'' Reedocalymene'' *'' Salterocoryphe'' *'' Sarrabesia'' *'' Spathacalymene'' *'' Sthenarocalymene'' *'' Tapinocalymene'' *'' Thelecalymene'' *'' Vietnamia'' References Calymenina Trilobite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Homalonotidae
Homalonotidae is a family of trilobites that lived from the Ordovician to the Devonian. They are characterised by a shovel-like cephalon (head), and are closely related to the family Calymenidae. It contains the following genera: *'' Arduennella'' *''Brongniartella'' *'' Burmeisterella'' *'' Burmeisteria'' *'' Digonus'' *''Dipleura ''Dipleura'' is a genus of trilobites in the order Phacopida. It was described by Green in 1832, and the type species is ''Dipleura dekayi''. The type locality was in the Hamilton Group in New York. Distribution Fossils of this genus have b ...'' *'' Eohomalonotus'' *'' Homalonotus'' *'' Huemacaspis'' *'' Iberocoryphe'' *'' Kerfornella'' *'' Leiostegina'' *'' Parahomalonotus'' *'' Plaesiacomia'' *'' Platycoryphe'' *'' Scabrella'' *'' Trimerus'' References Calymenina Trilobite families {{phacopida-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tobias - Calymene
Tobias is the transliteration of the Greek which is a translation of the Hebrew biblical name he, טוֹבִיה, Toviyah, JahGod is good, label=none. With the biblical Book of Tobias being present in the Deuterocanon/Apocrypha of the Bible, Tobias is a popular male given name for both Christians and Jews in English-speaking countries, German-speaking countries, the Low Countries, and Scandinavian countries. In English-speaking countries, it is often shortened to Toby. In German, this name appears as Tobias or Tobi; in French as Tobie; and in Swedish as Tobias or Tobbe. Tobias has also been a surname. In other languages * Danish, Norwegian, German, Dutch, Swedish, Portuguese: Tobias * Amharic: ጦቢያ (T’obīya) * Catalan: Tobies * Czech: Tobiáš, Tobias * Croatian: Tobijaš * Finnish: Topias, Topi * French: Tobie * Greek: Τωβίας ''(Tobías)'' * Hebrew: Tovia, Tuvya * Hungarian: Tóbiás * Italian: Tobia (name) * Lithuanian: Tobijas * Polish: Tobiasz * Russia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prehistoric Animal Suborders
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of symbols, marks, and images appears very early among humans, but the earliest known writing systems appeared 5000 years ago. It took thousands of years for writing systems to be widely adopted, with writing spreading to almost all cultures by the 19th century. The end of prehistory therefore came at very different times in different places, and the term is less often used in discussing societies where prehistory ended relatively recently. In the early Bronze Age, Sumer in Mesopotamia, the Indus Valley Civilisation, and ancient Egypt were the first civilizations to develop their own scripts and to keep historical records, with their neighbors following. Most other civilizations reached the end of prehistory during the following Iron Age. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
