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| Postozoic | |
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| Topic Started: Apr 19 2010, 12:01 PM (6,716 Views) | |
| Pando | Apr 19 2010, 12:01 PM Post #1 |
Obey or I'll send you to the moon
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Since my old topic died and I had so much revision I just created a new topic. In the Postozoic I will focus on 4 (rather than 3) time zones. They will be 25, 90, 120, and 200 million years future. In 25 million years future the world is 1 degree hotter than 2010, and rain forests cover the equator but Africa-like savannas are dominant. In the sea dolphins hold their niche but seals filter feed and otters have taken the role of seals and the ambush predator niche north of the equator, where they can't compete with the better adapted crocodilians. An order of primates descended from the Hamadryas baboon start to compete with carnivora for the niche of apex predators. In 90 million years the world is 1 degree colder than 2010, and there are no rain forests with Mediterranean climate replacing them. The savannas and grasslands are more spread, up until the taiga (boreal forests) that start around the height of Canada. Mammals are at their height. An order of neo-mesonychids descended from pigs have overthrown the carnivore baboons. Carnivora is extinct except in South America. Bats have become more dominant, keeping most birds as raptorial-like forms. During this period a mass extinction in between KT and P-Tr arrives, heating up the world and bringing an end to the reign of mammals and the extinction of monotremes. In 120 million years the world is a hot place rules by reptiles. Amphibians have been in decline ever since the human extinction, and the 90 MYF extinction brought their end. All birds also go extinct in the extinction, except for an Asian group of quadruped birds, descended from junglefowl. Bats rule the skies, with the group that rules the skies losing another finger from the membrane, allowing them to walk better and grow bigger. All the continents are connected except for South America and Antarctica, which is the only place that mammals are still dominant. Monitor lizard descendants are the apex predators. Mice and antechinus descendants rule the insectivorous niche. In the trees a group of carnivorous primates rule predator niche and another group rule the fruigivorous and insectivorous niches, all descended from the 1 monkey that survived the extinction. A group of arboreal geckos rule the rodent niche. In Antarctica a group of swingers similar to monkeys have evolved, descended from bats. In the sea dolphin-like sharks rule the dolphin niche and giant filter feeding squid rule the filter feeding niches. A new class of reptile-like chordates descended from pangolins emerge from Lemuria when it crashes into India, including the neo-theropods descended from lizargolins, which had the chance to rise with the extinction of Emperor Birds. In 200 million years all the continents have grown in a neo-Pangea. Birds and neo-reptile pangolins have taken control of the land, winning over mammals because of their better water conservation. In the trees the monkey bats has a cosmopolitan range in the coastline rain forests from when Antarctica collided with neo-Pangea. Antechinus now completely control the insectivore niche, and opossums from South America rule the rodent niche, and are the last marsupials. A few armadillos, neo-ground sloths (from South America) and ground Kinkajou (from Antarctica) roam in the southern rain forests of neo-Pangea. Flying lizards descended from the rodent geckos have taken pterosaur-like form and fill a niche similar to what bats have today. Another change that I'm doing from the original Postozoic is that instead of doing all the time zones at a time, I'm going to go time zone biome by time zone biome. The other change is in the survivor list. The only changes I'm doing is that hoatzin are extinct and sloths are extant, to fit my plans for the future. And so, welcome to the Postozoic! Edited by Pando, Apr 23 2010, 09:35 PM.
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| Pando | Apr 28 2010, 07:24 PM Post #46 |
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Obey or I'll send you to the moon
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Birfish/Flying Fish: Flying fish descended from flying fish, they live near small islands that the native tetrapod fauna was wiped out from the 120 MYF extinction/went extinct on the islands. They feed on the native arthropod population, and are apex predators of the islands. Their pectoral fins are bigger and can flap faster like hummingbirds, but they still have gills and live in the water. They can breath through the skin like amphibians to lengthen their stay on land when feeding. Ray Squid/Squid: Plankton feeding squid, their 9th and 10th tentacles have merged with their side structures to form ray-like wings. Their wingspans can reach from 30-60 feet. They are actually primitive ancestors of squids like the Whalosquid. Sea Mantis/Mantis Shrimp: Seascorpion-like mantis shrimp. Their forelimbs still have only a spike though. They have become eficient predators for the prey they can catch. They range in size of 5 inches to 3 feet, being able to grow so big because of the increased amount of oxygen in the sea. I have a picture ready for the Ray Squid. Should be up within a few days, but I'm too tired to scan it right now. I think that with this I'll finish the 200 MYF Oceans. |
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| Pando | Apr 29 2010, 11:49 AM Post #47 |
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Obey or I'll send you to the moon
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I have the picture of the Ray Squid ready. Spoiler: click to toggle And now, GLOBAL OCEAN IS FINISHED! What biome do you want next? North America: California Forest, Grasslands, Forest, Rain Forest, Taiga, Swamp South America: Savanna, Rain Forest Africa: Rain Forest, Savanna European Forest Asia: Desert, Forest, Rain Forest, Taiga Australia: Rain Forest, Savanna Madagascar Rain Forest. |
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| Pando | May 1 2010, 12:25 PM Post #48 |
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Obey or I'll send you to the moon
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I have started on the 120 MYF Chinese Swamp!
I will start with the land Octopi.
Their evolutionary history:
Species: Tree Octopus/Octopi: An arboreal octopus, they are an early split off the land octopi tree. They have 4 long tentacles to swing, and 4 shorter, thicker, sticky tentacles for climbing trees. Their mouth is extendable and they are extremely poisonous.  Octosuchus/Octpi: The ambush predator flipper-feet, they are 10 feet long (excluding tentacles) and have an elongated body with 4 strong flippers that they can use to haul themselves on the land to sleep, breed, rest, and chase prey. They swim with an up-down motion like Ceteceans. Their main way to catch prey is to grab them with their tentacles. They can breathe through their skin to lengthen their stay underwater. Herbipus/Octopi: An omnivorous Hexapus, the first. It has evolved a long gut to process the plant and evolved symbiosis with bacteria that breaks down the plants, similar to the bacteria in the guts of tetrapods. Edited by Pando, May 1 2010, 12:25 PM.
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| Holben | May 1 2010, 02:28 PM Post #49 |
Rumbo a la Victoria
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Sorry for the not-posting, Time Is Running Out. However much you change haemocyanin, it will not have the correct support ratio for them. However much you try, you cannot find intermediary stages for a lung. The pallial cavity won't have the SA. However much you try, their skelton will be floppy. However much you try, they won't be strong enough to move and bigger than a few centimetres. However much you try, they won't be able to stand the UV light. And i can't even think of objections at the moment. |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Pando | May 1 2010, 02:34 PM Post #50 |
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Obey or I'll send you to the moon
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The land ones do not grow bigger than the size of a medium-sized dog. The octosuchians grow bigger, but they spend most of the time in the water. Their leathery skin can reflect UV rays, fish did it. Why won't the Pallial Cavity not work? They're small enough to have a single lung. AND GASTRAPODS DID IT! Their skeleton system isn't as strong as our bones, but it is strong enough for their size. I have made some pictures and a non-land octopus (a piscivorous pangolin theropod). |
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| Holben | May 1 2010, 02:37 PM Post #51 |
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Rumbo a la Victoria
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Fish don't reflect UV rays, they shield from them. You can't just say 'these guys did it' because they did it a long time a go, in different circumstances, and they were less specialised. Plus, they weren't them. How big are they again? This skeleton won't support a 30cm beast or one close to that. Sorry to be dismissive, but LAND CEPHALOPODS. |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Pando | May 1 2010, 03:58 PM Post #52 |
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Obey or I'll send you to the moon
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Gastropods and cephalopods are similar. So the Pallial Cavity can be used as an example. And why can't a calcium skeleton be used? It can also be made from chitin, which is harder. Or a chitin-calcium mix. |
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| Holben | May 2 2010, 06:06 AM Post #53 |
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Rumbo a la Victoria
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When you see a cuttlefish pen on the beach, it doesn't really serve the purpose of a skeleton. It can't slide like a vertebrate joint, it is fragile and not very strong, and it decays rapidly in the presence of certain chemicals. Gastropods and cephies diverged so long ago and were already so difgferent they can't be used as an example! |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Pando | May 2 2010, 01:14 PM Post #54 |
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Obey or I'll send you to the moon
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They still have many things in common. When they share the same genes, those can be used as an example (like the Pallial Cavity). And for the UV protection, they got 90 million years till the extinction, which in the time they got freshwater and I would bet they developed UV protection when in the freshwater. I've got 2 more creatures (a toraton-like tetrapod bird and a sea turtle-like turtle that takes the niche of hippos) but you'll have to wait a while before I'll reveal them. |
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| Holben | May 2 2010, 02:06 PM Post #55 |
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Rumbo a la Victoria
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Come on. It took over 90 million years for fish to adapt to the land. Same genes? Not really. They are very very very different. Terracephalohile. |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Pando | May 2 2010, 02:14 PM Post #56 |
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Obey or I'll send you to the moon
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They share genes, for example the Pallial Cavity. If gastropods could do it so can cephalopods. Man I'd really like to go to Team Squid, but it's full. |
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| Holben | May 2 2010, 02:22 PM Post #57 |
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Rumbo a la Victoria
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If gastropods can do it... NO. They are very very very very very very very very very very very very very very very very very different. genes to do with the gills which AROSE in gastropods are nbot kept in cephie DNA. Plus, gastropods aren't an excuse, they are not the same AT ALL. It's like saying mammals are all dinocephalians. |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Pando | May 8 2010, 11:12 PM Post #58 |
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Obey or I'll send you to the moon
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Some genes are shared though and can be used as an example. Octopi groups: Hexapus:  Tetrapus:  Octosuchus: (crocodilians are extinct, so an octopus took the niche)  Got the new species: Jacanasaurus: A neo-theropod, they have long webbed toes to prevent falling to the swamp. They eat fish or any aquatic animal they can catch, similar to Spinosaurus. They grow to 20-30 feet long.  Birdaton: A quadrupedal bird, their back feet is webbed like the feet of a Jacanasaurus, and the front feet are spread out to prevent sinking. They grow to 20 feet long, or 13 feet tall.  Turtlepottamus: A turtle that resembles the sea turtles of today, they fill the niche of hippos. They have a flat body to float on the surface and a long neck to reach down to aquatic plants and land plants without ever having to stop floating. They grow up to 20 feet long, but most are smaller. I had a picture and scanned it, but for some reason it's not on the computer. I shall put it up soon. |
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| Holben | May 10 2010, 11:55 AM Post #59 |
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Rumbo a la Victoria
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Huh- i guess you're not letting me argue my point. I like the new guys, but why does the birdaton have different front and back feet? The front one has nails, the second flippers. |
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Time flows like a river. Which is to say, downhill. We can tell this because everything is going downhill rapidly. It would seem prudent to be somewhere else when we reach the sea. "It is the old wound my king. It has never healed." | |
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| Pando | May 10 2010, 12:50 PM Post #60 |
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Obey or I'll send you to the moon
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The front feet of quadruped birds are still primitive by 120 MYF. |
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