The first record of Hainosaurus (Reptilia : Mosasauridae) from Sweden

Research output: Contribution to journalArticlepeer-review

29 Citations (SciVal)


Isolated marginal tooth crowns of the early Campanian mosasaur Hainosaurus Dollo, 1885, from the Kristianstad Basin and the Vomb Trough. southern Sweden, are described and illustrated. The teeth have been collected from a narrow stratigraphic interval corresponding to the highest belemnite zone in the lower part of the European two-fold division of the Campanian stage. A reexamination of dental and skeletal characters in two alleged species of Hainosaurus, 'H.' pembinensis Nicholls, 1988 and 'H.' gaudryi (Thevenin, 1896). and detailed comparisons with the corresponding elements in H. bernardi Dollo, 1885 and Tylosaurus proriger (Cope. 1869a), strongly indicate that 'H.' pembinensis and 'H.' gaudryi are both Tylosaurus Marsh, 1872. Diagnostic features of Hainosaurus include a very small infrastapedial process on the quadrate (conspicuous protuberance in Tylosaurus), flattened, symmetrically bicarinate marginal teeth (asymmetric and conical in Tylosaurus), short and wide pygal centra, and anteriorly situated intermediate caudal vertebral centra with dorsoventrally thin transverse processes (markedly triangular centra and thick processes in Tylosaurus).
Original languageEnglish
Pages (from-to)1157-1165
JournalJournal of Paleontology
Issue number6
Publication statusPublished - 2005

Subject classification (UKÄ)

  • Geology


Dive into the research topics of 'The first record of Hainosaurus (Reptilia : Mosasauridae) from Sweden'. Together they form a unique fingerprint.

Cite this