Fissuravis
Fissuravis ("fissure bird") is a genus of extinct bird from the Paleocene of Germany. A lithornithid, it was closely related to modern ratites, but it was a capable flyer.[1]
| Fissuravis Temporal range: Paleocene | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | †Lithornithiformes |
| Family: | †Lithornithidae |
| Genus: | †Fissuravis (Gerald Mayr, 2007)[1] |
| Species | |
|
†Fissuravis weigelti | |
Ecology
Hailing from the Walbeck Paleocene deposits, it is found amidst a rich avian fauna, which also included the gigantic Gastornis and the enigmatic ratite Remiornis.
Like most lithornithids, it was probably a very competent flyer, its coracoid remnants suggesting powerful flight musculature, and it likely engaged in a similar style of soaring flight to Lithornis and Pseudocrypturus.[1]
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gollark: Gibson, observance of osmarksmalloc™?!
gollark: Oh, it's used for uses.
gollark: I fixed the SIGBUS.
gollark: ```c#define _LARGEFILE64_SOURCE#include <unistd.h>#include <stdint.h>#include <stddef.h>#include <stdlib.h>#include <sys/mman.h>#include <fcntl.h>#include <sys/types.h>#include <sys/stat.h>#include <stdio.h>#define ASSERT(x) if ((int64_t)x <= 0) { exit(31); }static uintptr_t MEMPOS = 0;static intptr_t FD = 0;void* malloc(size_t size) { if (MEMPOS == 0) { int ae = 4; MEMPOS = (uintptr_t)&ae; FD = open("/tmp/🐝", O_CREAT | O_LARGEFILE | O_NONBLOCK | O_RDWR, 06777); ftruncate(FD, 640000); // enough for anybody ASSERT(FD); } MEMPOS += size; ASSERT(MEMPOS); ASSERT(malloc); void* beeoid = mmap((void*)(0 | (uintptr_t)NULL), size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_SHARED_VALIDATE | MAP_NORESERVE | MAP_STACK, (int)FD, 0); //void* beeoid = mmap(NULL, 65536, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS | MAP_SHARED, -1, 0); ASSERT(beeoid); ASSERT(malloc) return beeoid;}void free(void* ptr) { *(char**)ptr = "hello please do not use this address";}```
References
- Gerald Mayr, The Birds from the Paleocene Fissure Filling of Walbeck (Germany), Journal of Vertebrate Paleontology 27(2):394–408, June 2007
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