Marsh, who examined the specimen in 1881, thought that this small skeleton in the Compsognathus belly was an embryo, but in 1903, Franz Nopcsa concluded that it was a lizard.
Marsh, koji je pregledao taj primjerak 1881. godine, smatrao je da je maleni skelet unutar stomaka Compsognathusa bio embrij, ali je 1903. godine Franz Nopcsa zaključio da je u pitanju gušter.