Never stop writing :)
When a story relies heavily on scientific terms, dino. names, in this case, it can be a road block to the reader. Not knowing my dinosaurs as well as I should, I felt I was losing out on the visuals. A big challenge for any author is to create a vivid world in the readers mind using only words. This would, however, make a great graphic novel. :)
Read the story now
There is so much potential with this story. My advice would be to keep working the story. Refine it. If it is possible, (idk, I'm new to this site), insert hyperlinks in the dinosaur terms, so the reader can quickly reference a picture or description. Try adding a bit more description using all of the senses if you can; smell, sounds, touch, etc..
Overall, I believe you have a fantastic future ahead of you as an author. I can tell you love what you do. You have a wonderful imagination. Never stop writing. You will improve with every piece you produce. I look forward to reading more of your work in the future.