Talk:Marrella

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Geology: Cambrian Low‑importance

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Dicranurus[edit]

I recently came across a species of trilobite called Dicranurus Hamatus Elegantus and it has a strikingly similar head sheild to Marrella however have not been able to find any information on the structure of the legs of the body segments or how many pre oral appendages it has. I would assume that some on else has noticed this and looked into it or was aware of somthing that i am not and dissmissed it as a stricktly supperficial simalarity, but I would apprectiate feedback.Timothy C. Barr 18:30, 19 April 2007 (UTC)[reply]

At least some information about Marrella can be found in Gould's book Wonderful Life. Perhaps some editor who owns the book will go pull out some citations; I'm sure Gould refers to the primary literature in a perfectly adequate way. ACW (talk) 15:22, 13 February 2008 (UTC)[reply]

There's no close relationship betwen Marrella and Dicranurus : Marrella is a Arachnomorph arthropod. Marrella 's head bear 2 antenna-like structure,unlike trilobites (Dicranurus is a trilobite). The Dicranurus body is broad is the thoracic region so it cover the legs, whether Marrella 's body is narrow.

I never heard of Dicranurus legs, but if we take a look to Phacops of the Hunsrück slate or Triathrus two other trilobites, we see that the leg structure is completly different of Marrella's one.

Apparently, the assertion that Marrella can only be found in a single stratum of the Burgess Shale is wrong (see Garcia-Bellido and Collins 2006 : A new study of Marrella splendens (Arthropoda, Marrellomorpha) from the middle Cambrian Burgess Shale, British Comlumbia, Canada)

--Mimetaster (talk) 15:33, 26 March 2009 (UTC)[reply]

I've fixed that erroneous statement, and a couple of other small errors; I've also clarified the relationship of Marrella to the trilobites. More work is needed on the article, though! Martin (Smith609 – Talk) 21:18, 27 March 2009 (UTC)[reply]

Clarify, please[edit]

"Marrella had a hard shell-like head that was not only hollow but like the shell of a crab." -- It is not immediately obvious exactly how the head of Marrella would be like the shell of crab. Can this be rephrased or clarified, please? -- 201.37.230.43 (talk) 15:23, 30 May 2009 (UTC)[reply]

It doesn't even appear to mean anything, especially w.r.t. ecology, so I've removed it. Martin (Smith609 – Talk) 15:00, 31 May 2009 (UTC)[reply]

Irridescance[edit]

So would it have looked like a 'modern shiny blue beetle or fly'? 80.254.147.68 (talk) 17:11, 8 May 2014 (UTC)[reply]