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*  Waptia
The well-developed compound eyes were stalked. The striking morphological similarities of the eyes of Waptia fieldensis to that ... Crustacea and Arthropod Relationships. Taylor & Francis Group. pp. 73-93. ISBN 978-0-8493-3498-6. Rod S. Taylor (2002). "A new ... A median eye may have also been present. Nervous tissue, including a putative brain, has been identified. The thorax is divided ... Waptia fieldensis is an extinct species of arthropod from the Middle Cambrian Burgess Shale Lagerst├Ątte of Canada. It grew to a ...
*  Triops
The compound eyes are on the surface of the head, but the ocellus is deep within the head. All the eyes, however, are easily ... David A. Grimaldi & Michael S. Engel (2005). "Arthropods and the Origin of Insects". Evolution of the insects. Volume 1 of ... The compound eyes are generally sessile (not stalked). In addition, there is a naupliar ocellus (the "third eye") between them ... The head of Triops longicaudatus bears a pair of dorsal compound eyes that lie close to each other and are nearly fused ...
*  Chrysomya megacephala
C. megacephala have large red eyes, those of males being close together, and those of females farther apart. The cercus of the ... Organophosphate compounds are used in agriculture and are highly toxic. Organophosphate poisoning often causes death, and in ... "Forensic Entomology; The Utility of Arthropods in Legal Investigations" Pg. 33 Byrd, Jason H., and James L. Castner. Forensic ... Veterinary Entomology: Arthropod Ectoparasites of Veterinary Importance. London: Springer, 1997. Williams KA, Villet MH (2006 ...
*  Azygocypridina lowryi
"Molecular phylogenetic evidence for the independent evolutionary origin of an arthropod compound eye". Proceedings of the ... This eye is unable to form a proper image but is able to detect differences in the intensity of light. Azygocypridina lowryi is ... Another unusual feature of this ostracod is the possession of a lateral eye which takes the form of a hairy flap of skin ...
*  Annelid
The compound eyes probably evolved independently of arthropods' eyes. Some tube-worms use ocelli widely spread over their ... that detect the direction from which light is coming and camera eyes or compound eyes that can probably form images. ... However, the genes that drive segmentation in arthropods do not appear to do the same in annelids. Arthropods and annelids both ... ISBN 0-19-551368-1. Cutler, B. (August 1980). "Arthropod cuticle features and arthropod monophyly". Cellular and Molecular Life ...
*  Ommatidium
The compound eyes of arthropods like insects, crustaceans and millipedes are composed of units called ommatidia (singular: ... Pseudopupil Arthropod eye Apposition eye Superposition eye Muller, C; Sombke, A; Rosenberg, J (2007). "The fine structure of ... The number of ommatidia in the eye depends upon the type of arthropod and may be as low as 5 as in the Antarctic isopod ... Since an image from the compound eye is created from the independent picture elements produced by ommatidia, it is important ...
*  Prionomyrmecini
Nothomyrmecia workers feed on nectar and arthropods, using their compound eyes for prey and navigational purposes. Owing to ... Both ants have large compound eyes, relying on their vision for prey and navigational purposes. Due to their primitive and ... Prionomyrmex may have foraged on the ground or onto trees and low vegetation, feeding on nectar and arthropods. Nothomyrmecia ...
*  Dachshund (gene)
dachshund is a gene involved in the development of the arthropod compound eye which also plays a role in leg development. In ... Gehring, W. J.; Ikeo, K. (1999). "Pax 6: mastering eye morphogenesis and eye evolution". Trends in genetics : TIG. 15 (9): 371- ... "dachshund encodes a nuclear protein required for normal eye and leg development in Drosophila". Development. 120 (12): 3473- ...
*  Anomalocaridid
Features shared with arthropods include a head carapace, appendages that are covered with jointed plates, and compound eyes. ... Anomalocaridids also had large compound eyes, a feature that they share with arthropods. The body was flanked with a series of ... Their raptorial great appendages and large, compound eyes suggest that they were apex predators, lying at the top of the ... The oldest arthropods of the East European Platform. Lethaia, 21, 29-38. Legg, David A., et al. "Cambrian bivalved arthropod ...
*  Compound eye
A compound eye is a visual organ found in arthropods such as insects and crustaceans. It may consist of thousands of ommatidia ... Media related to Compound eye at Wikimedia Commons The Compound Eye Make Your Own Compound Eye by Stephanie Bailey Did you know ... The resulting eye is a mixture of a simple eye within a compound eye. Another version is the pseudofaceted eye, as seen in ... Compound eyes are typically classified as either apposition eyes, that form multiple inverted images, or superposition eyes, ...
*  Evolution of nervous systems
Many arthropods have well-developed sensory organs, including compound eyes for vision and antennae for olfaction and pheromone ... Arthropods, such as insects and crustaceans, have a nervous system made up of a series of ganglia, connected by a ventral nerve ... Protostomes, the more diverse group, include arthropods, molluscs, and numerous types of worms. There is a basic difference ...
*  Nervous system
Many arthropods have well-developed sensory organs, including compound eyes for vision and antennae for olfaction and pheromone ... Arthropods, such as insects and crustaceans, have a nervous system made up of a series of ganglia, connected by a ventral nerve ... The initial sensory response, in the retina of the eye, and the final motor response, in the oculomotor nuclei of the brain ... In the visual system, for example, sensory receptors in the retina of the eye are only individually capable of detecting " ...
*  Arthropod eye
Most arthropods have at least one of two types of eye: lateral compound eyes, and smaller median ocelli, which are simple eyes ... In turn, the dispersal of compound eyes seems to have created large networks of seemingly independent eyes in some arthropods, ... Apposition eyes are the most common form of eye, and are presumably the ancestral form of compound eye. They are found in all ... Mollusc eye Parietal eye Simple eye in invertebrates Vision in fish Optic lobe (arthropods) They are about 5000 times more ...
*  Eye
Compound eyes are very sensitive to motion. Some arthropods, including many Strepsiptera, have compound eyes of only a few ... eye) (Night vision) Arthropod eye Cephalopod eye Emission theory (vision) Eye colour Eye development Eye disease Eye injury Eye ... The resulting eye is a mixture of a simple eye within a compound eye. Another version is a compound eye often referred to as " ... Compound eyes are common in arthropods, and are also present in annelids and some bivalved molluscs. Compound eyes, in ...
*  Trinocular vision
The parietal eye present in some amphibians and reptiles. The ocelli that occur in many arthropods. A compound eye with three ... Trinocular vision may refer to: Animals with a rudimentary third eye: ... Third eye (disambiguation) Binocular vision Monocular vision. ...
*  Arthropod
Most arthropods have sophisticated visual systems that include one or more usually both of compound eyes and pigment-cup ocelli ... Moulting may be responsible for 80 to 90% of all arthropod deaths. = heart = gut = brain / ganglia 0 = eye Arthropod bodies are ... and the compound eyes are the main source of information, but the main eyes of spiders are ocelli that can form images and, in ... This Ur-arthropod had a ventral mouth, pre-oral antennae and dorsal eyes at the front of the body. It was assumed it was a non- ...
*  Cephalon (arthropod head)
Highly complex compound eyes are another obvious feature of the cephalon. When trilobites moulted, the librigenae ("free cheeks ... The cephalon is the head section of an arthropod. It is a tagma, i.e., a specialized grouping of arthropod segments. The word ... In relation with the arthropod head problem, phylogeny studies show that members of the Malacostraca class of crustaceans have ... Thylacocephala are a unique group of extinct arthropods, with possible crustacean affinities, thought to occur from the lower ...
*  Simple eye in invertebrates
... and compound eye specification in Drosophila". Arthropod Structure & Development. 35 (4): 357-378. doi:10.1016/j.asd.2006.08. ... and as such is essential for simple eye formation. Arthropod eye Evolution of the eye Eyespot apparatus Mollusc eye Parietal ... A "simple eye" is so called in distinction from a multi-lensed "compound eye", and is not necessarily at all simple in the ... Spiders do not have compound eyes, but instead have several pairs of simple eyes with each pair adapted for a specific task or ...
*  Xiphosura
The compound eyes are simpler in structure than those of other arthropods, with the individual ommatidia not being arranged in ... Xiphosurans have up to four eyes, located in the carapace. A pair of compound eyes is on the side of the prosoma, with one or ... A Textbook of Arthropod Anatomy. Hafner Publishing Company, New York. Peripatus - an overview of arthropod relationships. ... The brain is relatively large, and, as in many arthropods, surrounds the oesophagus. In both sexes, the single gonad lies next ...
*  Orthodenticle
... and compound eye specification in Drosophila" (PDF), Arthropod Structure and Development, 35 (4): 357-378, doi:10.1016/j.asd. ... just above the compound eyes). If orthodenticle is not expressed, structures from the lateral subdomain will be expressed all ... It defines the midline of the head, and is involved in the formation of the top side of the head, including the eyes. The gene ... "Ancient mechanisms of visual sense organ development based on comparison of the gene networks controlling larval eye, ocellus, ...
*  2018 in arthropod paleontology
... with highly modified compound eyes unique within the Hymenoptera". Journal of Paleontology. in press. doi:10.1017/jpa.2017.83. ... Paleontology portal History of science portal This list of fossil arthropods described in 2018 is a list of new taxa of ... Rudy Lerosey-Aubril; Jacob Skabelund (2018). "Messorocaris, a new sanctacaridid-like arthropod from the middle Cambrian Wheeler ... Arthropod Structure & Development. in press. doi:10.1016/j.asd.2017.11.006. Weiting Zhang; Hu Li; Chungkun Shih; Aibing Zhang; ...
*  Scutigera
... organised in a way that resembles a true compound eye, a type of eye found in arthropods. Most myriapods bear stemmata - that ... single lensed eyes which evolved by the reduction of a compound eye. However, the genus Scutigera has secondarily re-evolved a ... Member of the genus have pseudofaceted eyes. This type of eye consists of a cluster of numerous ocelli on each side of the head ... compound eye composed of repeated stemmata. These appear to grow in rows which are inserted between existing rows of ocelli. ...
*  Optic lobe (arthropods)
The optic(al) lobe of arthropods is a structure of the protocerebrum that sits behind the arthropod eye (mostly compound eyes) ...
*  Jaekelopterus
The primary method for determining visual acuity in arthropods is by determining the number of lenses in their compound eyes ... Further studies on the compound eyes of fossilized specimens of J. rhenaniae, including a large specimen with the right eye ... Studies on the chelicerae and compound eyes of Jaekelopterus have revealed that it was an active and powerful predator with ... which researchers could determine by observing a low IOA and a large number of lenses in their compound eyes. The chelicerae of ...
*  Marine life
... and the compound eyes are the main source of information. Arthropods also have a wide range of chemical and mechanical sensors ... Their vision relies on various combinations of compound eyes and pigment-pit ocelli: in most species the ocelli can only detect ... The arthropod body plan consists of segments, each with a pair of appendages. The rigid cuticle inhibits growth, so arthropods ... Marine arthropods range in size from the microscopic crustacean Stygotantulus to the Japanese spider crab. Arthropods' primary ...
*  Nematus oligospilus
The head bears a pair of long antennae, a pair of black compound eyes and three ocelli. The sides of the thorax are pale ... New Zealand Arthropod Collection. Retrieved 16 May 2017. Caron, Valerie; Ede, Fiona; Sunnucks, Paul; O'Dowd, Dennis J. (2013 ...
*  Opabinia
It has been assumed that the eyes were all compound, like arthropods' lateral eyes, but this reconstruction, which is not ... stalked eyes and other features; and he classified them as primitive arthropods, although he considered that arthropods are not ... two larger eyes, also stalked, near the rear and outer edges of the head, pointing upwards and sideways; and a single eye with ... gill arrangement and arthropods' biramous limbs led them to conclude that Opabinia was very closely related to arthropods. In ...