Myriapoda - Revision history

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2021-04-29T17:04:54Z

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← Older revision		Revision as of 13:04, 29 April 2021
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	===[[Symphyla]]===		===[[Symphyla]]===
	[[File:Symphyla1.jpg\|thumb\|right\|Symphyla [13]]]		[[File:Symphyla1.jpg\|thumb\|right\|Symphyla [13]]]
	This class consists of very small, soil-dwelling, myriapods that resemble translucent centipedes (although are more closely related to millipedes). Juveniles have six pairs of legs, but as they grow, eventually develop twelve pairs of legs. These organisms use their long antennae as sense organs because they lack eyes. They are typically found in soil from the surface down to a depth of about 50 cm. They move through the pores between soil particles and consume decaying vegetation. Despite this, Symphyla are considered [[pests]] and can do considerable harm to [[agriculture]] [6].		This class consists of very small, [[soil]]-dwelling, myriapods that resemble translucent centipedes (although are more closely related to millipedes). Juveniles have six pairs of legs, but as they grow, eventually develop twelve pairs of legs. These organisms use their long antennae as sense organs because they lack eyes. They are typically found in soil from the surface down to a depth of about 50 cm. They move through the pores between soil particles and consume decaying vegetation. Despite this, Symphyla are considered [[pests]] and can do considerable harm to [[agriculture]] [6].

	===[[Pauropoda]]===		===[[Pauropoda]]===
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	There are Cambrian fossils that exist which resemble myriapods, however the oldest unequivocal myriapod fossil is of a millipede from around 428 million years ago (Silurian Period)[8].		There are Cambrian fossils that exist which resemble myriapods, however the oldest unequivocal myriapod fossil is of a millipede from around 428 million years ago (Silurian Period)[8].

	An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].		An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These [[arthropods]] were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].


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	[4] Minelli A. (ed) (2013) Chilobase: A web resource for Chilopoda taxonomy		[4] Minelli A. (ed) (2013) Chilobase: A web resource for Chilopoda taxonomy

	[5]Sierwald, Petra; Bond, Jason E. (2007). "Current status of the myriapod class Diplopoda (Millipedes): Taxonomic diversity and phylogeny". Annual Review of Entomology. 52 (1): 401–420		[5]Sierwald, Petra; Bond, Jason E. (2007). "Current status of the myriapod class Diplopoda (Millipedes): Taxonomic [[diversity]] and phylogeny". Annual Review of Entomology. 52 (1): 401–420

	[6]C. A. Edwards (1990). "Symphyla". In Daniel L. Dindal (ed.). Soil Biology Guide. New York: Wiley. pp. 891–910.		[6]C. A. Edwards (1990). "Symphyla". In Daniel L. Dindal (ed.). Soil Biology Guide. New York: Wiley. pp. 891–910.

Gracecos at 19:22, 4 April 2021

2021-04-04T19:22:12Z

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	[[File:Millipede1.png\|thumb\|\|Millipede [12]]]		[[File:Millipede1.png\|thumb\|\|Millipede [12]]]

	This class is dominated by myriapods called Millipedes. The segments that make up the bodies of these organisms were formed by the fusion of two adjacent embryonic segments; meaning, each segment of a millipede bears two pairs of legs. This explains the name Diplopoda which means “double legs”. There are 16 orders and around 140 families classified off this class, making Diplopoda the largest of the myriapoda classes. Millipedes are unlike centipedes in that they are very slow moving and are [[~~detrivores~~]], meaning they feed on decaying litter and vegetation. However, some eat fungi and a very small minority are predatory [5].		This class is dominated by myriapods called Millipedes. The segments that make up the bodies of these organisms were formed by the fusion of two adjacent embryonic segments; meaning, each segment of a millipede bears two pairs of legs. This explains the name Diplopoda which means “double legs”. There are 16 orders and around 140 families classified off this class, making Diplopoda the largest of the myriapoda classes. Millipedes are unlike centipedes in that they are very slow moving and are [[detritivores]], meaning they feed on decaying litter and vegetation. However, some eat fungi and a very small minority are predatory [5].

Kyledesi at 05:28, 8 May 2019

2019-05-08T05:28:07Z

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	[[File:Pauropoda1.jpg\|thumb\|\|150px\|Pauropoda [14]]]		[[File:Pauropoda1.jpg\|thumb\|\|150px\|Pauropoda [14]]]
	This class is often referred to as pseudocentipedes because of how similar in appearance they are to their relatives. However, the similarities mostly stop there. These organisms are very small and pale and feed on mold and different forms of fungi [7].		This class is often referred to as pseudocentipedes because of how similar in appearance they are to their relatives. However, the similarities mostly stop there. These organisms are very small and pale and feed on mold and different forms of fungi [7].





	== History ==		== History ==
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	An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].		An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].

Kyledesi at 05:27, 8 May 2019

2019-05-08T05:27:33Z

← Older revision		Revision as of 01:27, 8 May 2019
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	An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].		An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].

Kyledesi at 05:27, 8 May 2019

2019-05-08T05:27:16Z

← Older revision		Revision as of 01:27, 8 May 2019
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	An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].		An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].

Kyledesi at 05:27, 8 May 2019

2019-05-08T05:27:01Z

← Older revision		Revision as of 01:27, 8 May 2019
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	An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].		An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].




	== References ==		== References ==

Kyledesi: /* History */

2019-05-08T05:26:44Z

History

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	== History ==		== History ==
	[[File:GiantMyria.png\|thumb\|right\|Ancient Myriapoda with scale [5]]]		[[File:GiantMyria.png\|thumb\|right\|Ancient Myriapoda with scale [15]]]
	There are Cambrian fossils that exist which resemble myriapods, however the oldest unequivocal myriapod fossil is of a millipede from around 428 million years ago (Silurian Period)[8].		There are Cambrian fossils that exist which resemble myriapods, however the oldest unequivocal myriapod fossil is of a millipede from around 428 million years ago (Silurian Period)[8].

	An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].		An ancient class of Myriapoda, [[Arthropleuridea]] are now extinct. Dying out in the Permian, some members of this class are most famously known as giant millipedes. These arthropods were some of the largest to ever live, were probably herbivorous, and were thought to reach sizes of 3 metres long [8].






	== References ==		== References ==

Kyledesi: /* Classification */

2019-05-08T05:26:33Z

Classification

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	===[[Chilopoda]]===		===[[Chilopoda]]===

	[[File:Centipede1.jpg\|thumb\|right\|150px\|Chilopoda [2]]]		[[File:Centipede1.jpg\|thumb\|right\|150px\|Chilopoda [11]]]
	This class includes true centipedes like the one shown. These organisms have only one pair of legs per body segment, including a modified pair of claws or mandibles at the front of the insect. Centipedes can have a varying number of legs, ranging from 30 to 354, although they will always have an odd number of pairs of legs. Some species are equipped with poison glands, which are used to hunt/capture prey, meaning centipedes are carnivorous. There are an estimated 8,000 species of centipede while only 3,000 have been described [4].		This class includes true centipedes like the one shown. These organisms have only one pair of legs per body segment, including a modified pair of claws or mandibles at the front of the insect. Centipedes can have a varying number of legs, ranging from 30 to 354, although they will always have an odd number of pairs of legs. Some species are equipped with poison glands, which are used to hunt/capture prey, meaning centipedes are carnivorous. There are an estimated 8,000 species of centipede while only 3,000 have been described [4].

	===[[Diplopoda]]===		===[[Diplopoda]]===

	[[File:Millipede1.png\|thumb\|\|Millipede [1]]]		[[File:Millipede1.png\|thumb\|\|Millipede [12]]]

	This class is dominated by myriapods called Millipedes. The segments that make up the bodies of these organisms were formed by the fusion of two adjacent embryonic segments; meaning, each segment of a millipede bears two pairs of legs. This explains the name Diplopoda which means “double legs”. There are 16 orders and around 140 families classified off this class, making Diplopoda the largest of the myriapoda classes. Millipedes are unlike centipedes in that they are very slow moving and are [[detrivores]], meaning they feed on decaying litter and vegetation. However, some eat fungi and a very small minority are predatory [5].		This class is dominated by myriapods called Millipedes. The segments that make up the bodies of these organisms were formed by the fusion of two adjacent embryonic segments; meaning, each segment of a millipede bears two pairs of legs. This explains the name Diplopoda which means “double legs”. There are 16 orders and around 140 families classified off this class, making Diplopoda the largest of the myriapoda classes. Millipedes are unlike centipedes in that they are very slow moving and are [[detrivores]], meaning they feed on decaying litter and vegetation. However, some eat fungi and a very small minority are predatory [5].
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	===[[Symphyla]]===		===[[Symphyla]]===
	[[File:Symphyla1.jpg\|thumb\|right\|Symphyla [3]]]		[[File:Symphyla1.jpg\|thumb\|right\|Symphyla [13]]]
	This class consists of very small, soil-dwelling, myriapods that resemble translucent centipedes (although are more closely related to millipedes). Juveniles have six pairs of legs, but as they grow, eventually develop twelve pairs of legs. These organisms use their long antennae as sense organs because they lack eyes. They are typically found in soil from the surface down to a depth of about 50 cm. They move through the pores between soil particles and consume decaying vegetation. Despite this, Symphyla are considered [[pests]] and can do considerable harm to [[agriculture]] [6].		This class consists of very small, soil-dwelling, myriapods that resemble translucent centipedes (although are more closely related to millipedes). Juveniles have six pairs of legs, but as they grow, eventually develop twelve pairs of legs. These organisms use their long antennae as sense organs because they lack eyes. They are typically found in soil from the surface down to a depth of about 50 cm. They move through the pores between soil particles and consume decaying vegetation. Despite this, Symphyla are considered [[pests]] and can do considerable harm to [[agriculture]] [6].

	===[[Pauropoda]]===		===[[Pauropoda]]===
	[[File:Pauropoda1.jpg\|thumb\|\|150px\|Pauropoda [4]]]		[[File:Pauropoda1.jpg\|thumb\|\|150px\|Pauropoda [14]]]
	This class is often referred to as pseudocentipedes because of how similar in appearance they are to their relatives. However, the similarities mostly stop there. These organisms are very small and pale and feed on mold and different forms of fungi [7].		This class is often referred to as pseudocentipedes because of how similar in appearance they are to their relatives. However, the similarities mostly stop there. These organisms are very small and pale and feed on mold and different forms of fungi [7].




	== History ==		== History ==

Kyledesi: /* Anatomy and Body Structure */

2019-05-08T05:26:05Z

Anatomy and Body Structure

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	== Anatomy and Body Structure==		== Anatomy and Body Structure==
	[[File:MyriaAnat.jpg\|thumb\|right\|Example of Myriapoda anatomy. Notice segements and appendages. The relationship between these body parts varies between classes and species [6]]]		[[File:MyriaAnat.jpg\|thumb\|right\|Example of Myriapoda anatomy. Notice segements and appendages. The relationship between these body parts varies between classes and species [10]]]

	Because Myriapoda are part of the group Arthopoda, this means they are [[invertebrates]] with segmented bodies. Pairs of appendages are connected to these segments and are used for movement, sensory, hunting, etc. They also have a single pair of antennae, with many species having eyes.The mouth lies on the underside of the head, with a pair of mandibles inside. The heart in myriapods is a long tubular organ that extends through the body instead of having blood vessels [2].		Because Myriapoda are part of the group Arthopoda, this means they are [[invertebrates]] with segmented bodies. Pairs of appendages are connected to these segments and are used for movement, sensory, hunting, etc. They also have a single pair of antennae, with many species having eyes.The mouth lies on the underside of the head, with a pair of mandibles inside. The heart in myriapods is a long tubular organ that extends through the body instead of having blood vessels [2].

Kyledesi: /* Myriapoda Overview */

2019-05-08T05:25:46Z

Myriapoda Overview

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	== Myriapoda Overview ==		== Myriapoda Overview ==

	[[File:Giantmilli.jpg\|thumb\|center\|African Millipede for scale[7]]]		[[File:Giantmilli.jpg\|thumb\|center\|African Millipede for scale[9]]]

	Myriapoda is a subphylum of [[Arthropoda]] and contains over 13,000 species, almost all of which are terrestrial. Species include various millipedes and centipedes, among others. The group is named “Myriapod” after one of their most distinguishable features, their myriad of legs. While this suggests their number of legs is countless, in reality myriapods range anywhere from having nearly 200 pairs of appendages to fewer than ten. The size of these [[organisms]] can vary as well; some species are microscopic while others can reach lengths of over 30 cm [1].		Myriapoda is a subphylum of [[Arthropoda]] and contains over 13,000 species, almost all of which are terrestrial. Species include various millipedes and centipedes, among others. The group is named “Myriapod” after one of their most distinguishable features, their myriad of legs. While this suggests their number of legs is countless, in reality myriapods range anywhere from having nearly 200 pairs of appendages to fewer than ten. The size of these [[organisms]] can vary as well; some species are microscopic while others can reach lengths of over 30 cm [1].