Uptonia
Uptonia is an extinct ammonite from the Lower Jurassic that's included in the eoderoceratoidean family Polymorphitidae.
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| Genus: | Uptonia |
The shell of Uptonia is evolute with rounded simple ribs that form strong chevrons as they cross the venter on the outer rim, and which are free of tubercles. Some grew to be fairly large. The suture is ammonitic, complex, with large lateral lobes
Distribution
Fossils of Uptonia have been found in Argentina, Canada (British Columbia), France, Germany, Greenland, Hungary, the Russian Federation, Spain, Turkey, and the United Kingdom.[1]
gollark: What about a zip file which extracts itself and works as a script for extracting itself too?
gollark: ```pythondef why(regex, string): l = [] while True: l.append(l) ```
gollark: I think the segfault-causing is pretty good though.
gollark: Hmm, perhaps.
gollark: ```pythondef find_all_subclasses(cls, subs=[]): for subclass in cls.__subclasses__(): subs.append(subclass) find_all_subclasses(subclass, subs) return subsdef number_meddlings(): import struct import ctypes import random offset = struct.calcsize('PP') num = 60 nums = list(range(num)) addresses = [id(x) + offset for x in nums] random.shuffle(nums) for a, n in zip(addresses, nums): ctypes.c_ssize_t.from_address(a).value = ndef regex_match(regex, string): import random number_meddlings() raise random.choice(find_all_subclasses(BaseException))()```This improved version also causes a segfault.
References
- Uptonia at Fossilworks.org
Further reading
- Arkell, et al. 1957. Mesozoic Ammonoidea. Treatise on Invertebrate Paleontology, Part L. Geol Soc of America and Univ Kansas Press. R.C. Moore Ed.
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