tag:blogger.com,1999:blog-3433304117507034540.post7749269368224221519..comments2024-03-27T10:06:07.100-07:00Comments on The Echinoblog: Off-topic: Sea Spiders (aka Pycnogonids) Galore!ChrisMhttp://www.blogger.com/profile/11784970666468925633noreply@blogger.comBlogger5125tag:blogger.com,1999:blog-3433304117507034540.post-80945701063988646652013-08-31T08:27:58.593-07:002013-08-31T08:27:58.593-07:00Hallucigenia is actually considered to be an anima...Hallucigenia is actually considered to be an animal intermediate between arthropods and polychaetes. The word often used to describe it is "lobopod" There are terrestrial members alive today called Velvet worms or Onychophora. If indeed these are living members, they live on land.. and not in marine settings.<br /><br />Neat animals!ChrisMhttps://www.blogger.com/profile/11784970666468925633noreply@blogger.comtag:blogger.com,1999:blog-3433304117507034540.post-50906023983717080162013-08-31T07:13:54.809-07:002013-08-31T07:13:54.809-07:00I actually found this post because after seeing Se...I actually found this post because after seeing Sea Pigs, a bunch of strange, tall Sea Urchins, and the recent Attenborough series I wondered if hallucigenia was actually an old echinoderm.<br /><br />I'm still curious!Lear's Foolhttps://www.blogger.com/profile/13622258083278055809noreply@blogger.comtag:blogger.com,1999:blog-3433304117507034540.post-89986902270959181152012-11-30T22:05:34.133-08:002012-11-30T22:05:34.133-08:00Alexander Semenov works at the White Sea Biologica...Alexander Semenov works at the White Sea Biological station of Lomonosov Moscow State University, so sea spiders are from the White Sea, Kandalaksha Bay, near this coordinates: 66 34' N, 33 08' EAnonymoushttps://www.blogger.com/profile/07302248340743622840noreply@blogger.comtag:blogger.com,1999:blog-3433304117507034540.post-1346215146374411872012-11-29T23:35:35.936-08:002012-11-29T23:35:35.936-08:00Actually, Hallucigenia is thought to be an ancient...Actually, Hallucigenia is thought to be an ancient ancestors of rarely seen modern animals called velvet worms (or onychophorans) Here are some websites<br /><br />http://evolution.berkeley.edu/evolibrary/article/_0_1/cambrian_15<br /><br />http://paleobiology.si.edu/burgess/hallucigenia.html<br /><br />the wikipedia discussion is worth reading:<br />http://en.wikipedia.org/wiki/Hallucigenia<br /><br />Sea spiders are better supported as being related to arachnids and horseshoe crabs. My understanding is that they do not share any close relationship with onychophora and Hallucigenia (although all fall in the broad umbrella of Arthropoda and their kin) <br />http://arthropoda.wordpress.com/2010/02/10/unraveling-arthropoda/ChrisMhttps://www.blogger.com/profile/11784970666468925633noreply@blogger.comtag:blogger.com,1999:blog-3433304117507034540.post-9492047510720400842012-11-29T23:13:40.459-08:002012-11-29T23:13:40.459-08:00If they had been better known when the first fossi...If they had been better known when the first fossils of Hallucigenia were found, I imagine the find wouldn't have been considered so out of the ordinary. I wonder if the sea spiders are the descendents of Hallucigenia.Johnn Moraleshttps://www.blogger.com/profile/18410754869779549100noreply@blogger.com