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I do not find any reference that the Nectaspida where assigned to the class Trilobita. How ever they are very trilobite like but anyway they do not have a carapace like Trilobites what is in my opinion quite a higher level systematic feature. Walch himself mentioned the "wonderful preserved carapace of this unknown crustacean species". (Walch, 1771) As long nobody can provide an scientific valid publication that place the Nectaspida inside the class Trilobita i would see this quite critical. I personal would like to see somehow Naraoiids inside the Order of Trilobita. In the other hand they are despite the similarity also very different. So maybe Nectaspida are that close related to trilobites as it can be without being a trilobite. This discussion seems to be longer around.
-- 91.44.201.192 ( talk) 14:01, 17 August 2015 (UTC)
It looks like its pronounced tril-o-bite, but I've also heard TRY-lo-bite. Any definitive sources? I suppose "TRY" echoes the Greek root for three? Tumacama ( talk) 21:44, 12 November 2009 (UTC)
Acatualy it is Walch was German so it is "Tril-lo-bit" But in english it is of course "Try- low - byte" ;-) Who cares, all systematic Taxa are spoken in local pronounce. -- 93.211.236.241 ( talk) 13:36, 23 January 2013 (UTC)
What subphylum were trilobites in? 78.151.23.110 ( talk) 18:07, 8 February 2010 (UTC)
Well there is also the subphylum Arachnomorpha Lameere, 1890 in discussion. As i said before high level systematics is a hobby of old scientist that like to believe the move big things if the work in that thing. There is in my opinion no right or wrong. But that do not means it is useless, we need high level systematics and the old bored man that take "care" of it. -- 93.211.236.241 ( talk) 13:36, 23 January 2013 (UTC)
I believe this is it:
http://en.wikipedia.org/wiki/Trilobitomorpha ```` —Preceding
unsigned comment added by
74.128.38.202 (
talk)
00:25, 14 October 2010 (UTC)
I don't have time at the moment to fix it, but the grammar in the Fossil Record section is broken. Thought I'd mention in case anyone with time is watching... Belltower ( talk) 19:19, 18 December 2012 (UTC)
What are the typical chemical composition of trilobites as found in the rock record? -- Hamsterlopithecus ( talk) 21:18, 8 March 2010 (UTC)
→I believe your question aimed for trilobites from limestones such as from the Devonian of Morocco. Trilobites had most likely a carapace that was beside organic components mainly made from calcite (not Aragonite). The carapace was highly organised in different layers. The other prismatic layer. The corse laminated layer and in inner fine laminated layer. Due the progress of Fossilization the fossil can have a different chemical composition.
Under good conditions (Mostly in Limestones or carbonatic marls) the Trilobite shell is still preserved in Calcite with exceptional micro details. There is sometimes no trace of re-mineralisation visible. If the conditions where not so good they are preserved in a recrystallized state of Calcite. Beside that Trilobite fossils can be preserved in many different ways. Depending on the Diagenesis of its surrounding rock.
-- 91.44.201.192 ( talk) 14:24, 17 August 2015 (UTC)
This is should be change to reflect that they are an Order and not just one species. Would it constitute synthesis to change it?-- Adam in MO Talk 00:09, 27 March 2011 (UTC)
I find this statement from the article to be somewhat confusing:
"By comparison with living arthropods, trilobites are thought to have reproduced sexually, producing eggs..."
After rereading the phrase a few times, I realize that the point is that an educated guess was made about trilobite reproduction based upon the behavior of living arthropods. However, on first reading it seemed to me that the article was stating that living arthropods do NOT reproduce sexually, which makes little sense to me (I know that arthropods rarely engage in parthenogenesis, but that is an exception rather than a rule). I don't mean to make trouble for anyone, but I really feel like this could be put more clearly...perhaps someone with greater knowledge would not make the mistake I did, but this is an encyclopedia "for everyone" and the language of this phrase could be somewhat misleading to the layman. I would edit it myself but I'm hardly an expert on such things and I feel like it would be better for a more knowledgeable individual to rephrase. —Preceding unsigned comment added by 74.70.241.196 ( talk) 04:53, 7 April 2011 (UTC)
For those interested, I have been working on improving the coverage on trilobite anatomy here: User:Obsidian Soul/sandbox/Trilobite anatomy, mostly by providing diagrams. It's incomplete, as I got distracted by other stuff. My main problem now is where to put it. There are three options - merge it back with the Trilobite article, distribute it among the different arthropod anatomy pages as subsections, or make it a separate page in Trilobite anatomy (while removing the redundant info in Trilobite). Thoughts? Feel free to improve/correct/take parts out of/etc. the sandboxed article.-- Obsidi♠n Soul 13:10, 3 June 2011 (UTC)
Obsidi♠n Soul... brought it up and I've been thinking that images/diagrams of
1: hypostome (3 types?) and ventral anatomy (such as doublure and apodemes)
2: biramous limb/leg & gill structure
3: the three different eye types
would be very helpful in explaining some features. Psuedomorph ( talk) 15:33, 3 June 2011 (UTC)
I think its a Phacopida Phacopina, but someone with experience on the matter should help on identifying it. — Preceding unsigned comment added by Lolcattz ( talk • contribs) 00:04, 14 March 2012 (UTC)
The Class Trilobita and the subphylum Trilobitomorpha are not the same and should not redirect on the same Article. I know that this high level systematic stuff is highly disputed. But regardless is this Taxa is considered as valid* or not valid it is not the Same as the class Trilobite. The class Trilobita is only one class inside. (* i guess in high level systematics it is not the question of valid or invalid it is about how reasonable a classification is.) -- 93.211.236.241 ( talk) 13:04, 23 January 2013 (UTC) —
link for ten cool fact about trilobites http://research.amnh.org/paleontology/trilobite-website/twenty-trilobite-fast-facts.Im only ten but in love with the ocean. My mom got me this cool new book about the ocean and I found Trilobites in it .I was so amazed , I found some thing that I could not categorize in a species . I don't know much but if you do or if you know any thing please tell me. — Preceding unsigned comment added by 184.99.235.26 ( talk) 06:20, 5 January 2014 (UTC)
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One section reads:
"Once soft-part anatomy had been recovered, the trilobites were originally allied to the Crustacea. A relationship with the Chelicerata, in a clade termed Arachnomorpha (Arachnata), was in vogue for some time,[58] but, a more recent analysis of Panarthropoda suggests the trilobites are one of two major branches of Artiopoda.[30]"
But above that, the article says that Chelicerata would be Trilobites' closest living relative. That line could use updating. :)
-- Neopeius ( talk) 04:25, 30 April 2019 (UTC)
This article was the subject of a Wiki Education Foundation-supported course assignment, between 28 August 2023 and 8 December 2023. Further details are available on the course page. Student editor(s): Babs subs ( article contribs). Peer reviewers: Lilladlili, Ldw15, OTatro.
— Assignment last updated by Gmcb3345 ( talk) 23:55, 26 October 2023 (UTC)
I felt that the current front image is not inclusive enough so i made a new image, I feel it is an improvement in pure value, itis also not as disproportonaly focused on a specific time period ( Ordovician) as the current one, which has only 1 from the cambrian (cambropallas ) and one from the ordovician (isotelus), also 2 of the 6 (phacops and walliserops) are phacopids, anyways, i think it would this would be an improvement
here it is, it contains trilobites from all orders and from 4 geological periods. Abdullah raji ( talk) 16:38, 10 December 2023 (UTC)
This is the
talk page for discussing improvements to the
Trilobite article. This is not a forum for general discussion of the article's subject. |
Article policies
|
Find sources: Google ( books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL |
Archives: 1 |
This
level-5 vital article is rated B-class on Wikipedia's
content assessment scale. It is of interest to multiple WikiProjects. | |||||||||||||||||||||||||||||||
|
This article has been
mentioned by a media organization:
|
I do not find any reference that the Nectaspida where assigned to the class Trilobita. How ever they are very trilobite like but anyway they do not have a carapace like Trilobites what is in my opinion quite a higher level systematic feature. Walch himself mentioned the "wonderful preserved carapace of this unknown crustacean species". (Walch, 1771) As long nobody can provide an scientific valid publication that place the Nectaspida inside the class Trilobita i would see this quite critical. I personal would like to see somehow Naraoiids inside the Order of Trilobita. In the other hand they are despite the similarity also very different. So maybe Nectaspida are that close related to trilobites as it can be without being a trilobite. This discussion seems to be longer around.
-- 91.44.201.192 ( talk) 14:01, 17 August 2015 (UTC)
It looks like its pronounced tril-o-bite, but I've also heard TRY-lo-bite. Any definitive sources? I suppose "TRY" echoes the Greek root for three? Tumacama ( talk) 21:44, 12 November 2009 (UTC)
Acatualy it is Walch was German so it is "Tril-lo-bit" But in english it is of course "Try- low - byte" ;-) Who cares, all systematic Taxa are spoken in local pronounce. -- 93.211.236.241 ( talk) 13:36, 23 January 2013 (UTC)
What subphylum were trilobites in? 78.151.23.110 ( talk) 18:07, 8 February 2010 (UTC)
Well there is also the subphylum Arachnomorpha Lameere, 1890 in discussion. As i said before high level systematics is a hobby of old scientist that like to believe the move big things if the work in that thing. There is in my opinion no right or wrong. But that do not means it is useless, we need high level systematics and the old bored man that take "care" of it. -- 93.211.236.241 ( talk) 13:36, 23 January 2013 (UTC)
I believe this is it:
http://en.wikipedia.org/wiki/Trilobitomorpha ```` —Preceding
unsigned comment added by
74.128.38.202 (
talk)
00:25, 14 October 2010 (UTC)
I don't have time at the moment to fix it, but the grammar in the Fossil Record section is broken. Thought I'd mention in case anyone with time is watching... Belltower ( talk) 19:19, 18 December 2012 (UTC)
What are the typical chemical composition of trilobites as found in the rock record? -- Hamsterlopithecus ( talk) 21:18, 8 March 2010 (UTC)
→I believe your question aimed for trilobites from limestones such as from the Devonian of Morocco. Trilobites had most likely a carapace that was beside organic components mainly made from calcite (not Aragonite). The carapace was highly organised in different layers. The other prismatic layer. The corse laminated layer and in inner fine laminated layer. Due the progress of Fossilization the fossil can have a different chemical composition.
Under good conditions (Mostly in Limestones or carbonatic marls) the Trilobite shell is still preserved in Calcite with exceptional micro details. There is sometimes no trace of re-mineralisation visible. If the conditions where not so good they are preserved in a recrystallized state of Calcite. Beside that Trilobite fossils can be preserved in many different ways. Depending on the Diagenesis of its surrounding rock.
-- 91.44.201.192 ( talk) 14:24, 17 August 2015 (UTC)
This is should be change to reflect that they are an Order and not just one species. Would it constitute synthesis to change it?-- Adam in MO Talk 00:09, 27 March 2011 (UTC)
I find this statement from the article to be somewhat confusing:
"By comparison with living arthropods, trilobites are thought to have reproduced sexually, producing eggs..."
After rereading the phrase a few times, I realize that the point is that an educated guess was made about trilobite reproduction based upon the behavior of living arthropods. However, on first reading it seemed to me that the article was stating that living arthropods do NOT reproduce sexually, which makes little sense to me (I know that arthropods rarely engage in parthenogenesis, but that is an exception rather than a rule). I don't mean to make trouble for anyone, but I really feel like this could be put more clearly...perhaps someone with greater knowledge would not make the mistake I did, but this is an encyclopedia "for everyone" and the language of this phrase could be somewhat misleading to the layman. I would edit it myself but I'm hardly an expert on such things and I feel like it would be better for a more knowledgeable individual to rephrase. —Preceding unsigned comment added by 74.70.241.196 ( talk) 04:53, 7 April 2011 (UTC)
For those interested, I have been working on improving the coverage on trilobite anatomy here: User:Obsidian Soul/sandbox/Trilobite anatomy, mostly by providing diagrams. It's incomplete, as I got distracted by other stuff. My main problem now is where to put it. There are three options - merge it back with the Trilobite article, distribute it among the different arthropod anatomy pages as subsections, or make it a separate page in Trilobite anatomy (while removing the redundant info in Trilobite). Thoughts? Feel free to improve/correct/take parts out of/etc. the sandboxed article.-- Obsidi♠n Soul 13:10, 3 June 2011 (UTC)
Obsidi♠n Soul... brought it up and I've been thinking that images/diagrams of
1: hypostome (3 types?) and ventral anatomy (such as doublure and apodemes)
2: biramous limb/leg & gill structure
3: the three different eye types
would be very helpful in explaining some features. Psuedomorph ( talk) 15:33, 3 June 2011 (UTC)
I think its a Phacopida Phacopina, but someone with experience on the matter should help on identifying it. — Preceding unsigned comment added by Lolcattz ( talk • contribs) 00:04, 14 March 2012 (UTC)
The Class Trilobita and the subphylum Trilobitomorpha are not the same and should not redirect on the same Article. I know that this high level systematic stuff is highly disputed. But regardless is this Taxa is considered as valid* or not valid it is not the Same as the class Trilobite. The class Trilobita is only one class inside. (* i guess in high level systematics it is not the question of valid or invalid it is about how reasonable a classification is.) -- 93.211.236.241 ( talk) 13:04, 23 January 2013 (UTC) —
link for ten cool fact about trilobites http://research.amnh.org/paleontology/trilobite-website/twenty-trilobite-fast-facts.Im only ten but in love with the ocean. My mom got me this cool new book about the ocean and I found Trilobites in it .I was so amazed , I found some thing that I could not categorize in a species . I don't know much but if you do or if you know any thing please tell me. — Preceding unsigned comment added by 184.99.235.26 ( talk) 06:20, 5 January 2014 (UTC)
Hello fellow Wikipedians,
I have just modified 4 external links on Trilobite. Please take a moment to review my edit. If you have any questions, or need the bot to ignore the links, or the page altogether, please visit this simple FaQ for additional information. I made the following changes:
{{
dead link}}
tag to
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After February 2018, "External links modified" talk page sections are no longer generated or monitored by InternetArchiveBot. No special action is required regarding these talk page notices, other than
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have permission to delete these "External links modified" talk page sections if they want to de-clutter talk pages, but see the
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source check}}
(last update: 5 June 2024).
Cheers.— InternetArchiveBot ( Report bug) 07:25, 24 May 2017 (UTC)
One section reads:
"Once soft-part anatomy had been recovered, the trilobites were originally allied to the Crustacea. A relationship with the Chelicerata, in a clade termed Arachnomorpha (Arachnata), was in vogue for some time,[58] but, a more recent analysis of Panarthropoda suggests the trilobites are one of two major branches of Artiopoda.[30]"
But above that, the article says that Chelicerata would be Trilobites' closest living relative. That line could use updating. :)
-- Neopeius ( talk) 04:25, 30 April 2019 (UTC)
This article was the subject of a Wiki Education Foundation-supported course assignment, between 28 August 2023 and 8 December 2023. Further details are available on the course page. Student editor(s): Babs subs ( article contribs). Peer reviewers: Lilladlili, Ldw15, OTatro.
— Assignment last updated by Gmcb3345 ( talk) 23:55, 26 October 2023 (UTC)
I felt that the current front image is not inclusive enough so i made a new image, I feel it is an improvement in pure value, itis also not as disproportonaly focused on a specific time period ( Ordovician) as the current one, which has only 1 from the cambrian (cambropallas ) and one from the ordovician (isotelus), also 2 of the 6 (phacops and walliserops) are phacopids, anyways, i think it would this would be an improvement
here it is, it contains trilobites from all orders and from 4 geological periods. Abdullah raji ( talk) 16:38, 10 December 2023 (UTC)