{"id":3358,"date":"2016-08-19T14:52:20","date_gmt":"2016-08-19T18:52:20","guid":{"rendered":"http:\/\/glyphpress.com\/talk\/?p=3358"},"modified":"2016-08-19T15:32:38","modified_gmt":"2016-08-19T19:32:38","slug":"tokarahia-a-sleek-small-ancestor-of-the-largest-animal-in-history","status":"publish","type":"post","link":"https:\/\/glyphpress.com\/talk\/2016\/tokarahia-a-sleek-small-ancestor-of-the-largest-animal-in-history","title":{"rendered":"Tokarahia: a Sleek, Small Ancestor of the Largest Animal in History"},"content":{"rendered":"<p>The Tokarahia is a small (about 6m long), extinct ancestor of the modern baleen whales. It has a few, probably vestigial, peg teeth in the front of its jaws, but the rest of its mouth was almost certainly filled in with baleen. I love its sleek shape.<\/p>\n<p><!--more--><\/p>\n<figure id=\"attachment_3361\" aria-describedby=\"caption-attachment-3361\" style=\"width: 2394px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-2.jpeg\" rel=\"attachment wp-att-3361\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3361\" src=\"http:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-2.jpeg\" alt=\"You or I would fit nicely in its mouth. Fortunately, we're far larger than the stuff baleen whales eat.\" width=\"2394\" height=\"1594\" srcset=\"https:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-2.jpeg 2394w, https:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-2-300x200.jpeg 300w, https:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-2-768x511.jpeg 768w, https:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-2-1024x682.jpeg 1024w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><figcaption id=\"caption-attachment-3361\" class=\"wp-caption-text\">You or I would fit nicely in its mouth. Fortunately, we&#8217;re far larger than the stuff baleen whales eat.<\/figcaption><\/figure>\n<p>I&#8217;ve done some speculation here, of course. (That&#8217;s why I do these!) We know the Tokarahia from only a few skulls and bits of rib cage and fin, but we can guess that it, like its ancestors and modern whales, had vestigial legs. I can&#8217;t quite figure out if we know just how vestigial they were on Tokarahia, so I&#8217;ve represented them as largely-fleshy, flat structures, shaped a bit like the fins of a squid, though incapable of independent movement. I hope there was at least something there! Otherwise, it&#8217;s not as weird.<\/p>\n<p>Often, aquatic animals that live near the surface of the water (as it seems these did) are light-colored on the bottom and dark-colored on the top to camouflage against the sparkling, deep sea from above and the bright sky from below, so I&#8217;m speculating that it has that kind of basic pattern. Additionally, I&#8217;ve given it the whale shark&#8217;s speckles on top. Tokarahia&#8217;s relatively small brain implies that it wasn&#8217;t particularly social, so, instead of the orca&#8217;s eye spot in the front (which probably aids them in recognizing each other), it has an eye spot on the back to confuse and discourage its own predators.<\/p>\n<p>The pectoral fin shape doesn&#8217;t seem to be well known, although we have a few bones. I&#8217;m guessing that they&#8217;re just a little more foot-like than modern whale&#8217;s fins, but still definitely fins.<\/p>\n<p><div class=\"simplePullQuote right\"><p>*I pretty much used their work like a coloring book.<\/p>\n<\/div>Much of my reconstruction here is based on* the work of <a href=\"https:\/\/twitter.com\/CoastalPaleo\" target=\"_blank\">Robert Boessenecker<\/a> and Chris Gaskin. Thanks for doing the hard work for me!<\/p>\n<p>Wanna read more about the Tokaharia? <a href=\"http:\/\/paleontologiageral.blogspot.com\/2015\/09\/paleomammalogy-2015-tokarahia-kauaeroa.html\" target=\"_blank\">This is a pretty good article!<\/a><\/p>\n<p><i>I&#8217;d like to thank my Patreon backers for helping me make stuff. <b><a href=\"http:\/\/Http:\/\/Patreon.com\/joshua\" target=\"_blank\">You can, too!<\/a>\u00a0<\/b>You&#8217;ll get lots of process insights, ePub-friendly issues to read at the beach, and special goodies when I do other projects!<\/i><\/p>\n<p>Thanks in particular to Jason Godesky&#8217;s <a href=\"http:\/\/www.thefifthworld.com\/\">The Fifth World RPG <\/a>and its shared world! I&#8217;m going to have to do a review sometime. It&#8217;s the only science fiction RPG I&#8217;m excited about right now.<\/p>\n<p><a href=\"http:\/\/www.thefifthworld.com\/\" rel=\"attachment wp-att-3360\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-3360 size-full\" src=\"http:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image.png\" alt=\"The only Solarpunk RPG I've ever seen.\" width=\"1080\" height=\"209\" srcset=\"https:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image.png 1080w, https:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-300x58.png 300w, https:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-768x149.png 768w, https:\/\/glyphpress.com\/talk\/wp-content\/uploads\/2016\/08\/image-1024x198.png 1024w\" sizes=\"auto, (max-width: 709px) 85vw, (max-width: 909px) 67vw, (max-width: 1362px) 62vw, 840px\" \/><\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Tokarahia is a small (about 6m long), extinct ancestor of the modern baleen whales. It has a few, probably vestigial, peg teeth in the front of its jaws, but the rest of its mouth was almost certainly filled in with baleen. I love its sleek shape.<\/p>\n","protected":false},"author":35,"featured_media":3362,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,18],"tags":[80,81,79],"class_list":["post-3358","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-art","category-science","tag-mammal","tag-ocean","tag-paleocritter"],"_links":{"self":[{"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/posts\/3358","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/users\/35"}],"replies":[{"embeddable":true,"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/comments?post=3358"}],"version-history":[{"count":10,"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/posts\/3358\/revisions"}],"predecessor-version":[{"id":3371,"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/posts\/3358\/revisions\/3371"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/media\/3362"}],"wp:attachment":[{"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/media?parent=3358"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/categories?post=3358"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/glyphpress.com\/talk\/wp-json\/wp\/v2\/tags?post=3358"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}