Abstract
BackgroundIn a recent paper, a new species of the crocodyliform genus Isisfordia was erected based on, in part, a specimen previously designated as the holotype of ‘Crocodylus (Bottosaurus)’ selaslophensis. This new species was given the name Isisfordia molnari. However, because the holotype of ‘Crocodylus (Bottosaurus)’ selaslophensis displays a unique combination of characters and does not overlap with the holotype of I. molnari, both names remain valid according to ICZN regulations.ResultsThe present work instates Isisfordia selaslophensis comb. nov., recognising the seniority of the original specific epithet given to the specimen. The specimen is also reaffirmed as the holotype of the species. Isisfordia molnari is rediagnosed based on non-overlapping material but is potentially referable to Isisfordia selaslophensis. All other analyses, descriptions, diagnoses and conclusions stated by the original study remain valid.
Highlights
Hart et al (2019) recently described a new species of the crocodyliform Isisfordia from the Cenomanian-aged Griman Creek Formation at Lightning Ridge
The maxillary fragment was previously designated as the holotype of ‘Crocodylus (Bottosaurus)’ selaslophensis Etheridge, 1917 emend
The electronic version of this article in Portable Document Format (PDF) will represent a published work according to the International Commission on Zoological Nomenclature (ICZN), and the new names contained in the electronic version are effectively published under that Code from the electronic edition alone
Summary
Hart et al (2019) recently described a new species of the crocodyliform Isisfordia from the Cenomanian-aged Griman Creek Formation at Lightning Ridge (northern New South Wales, Australia). The new taxon, Isisfordia molnari, was based on the holotypic braincase (AM F125553) and a referred maxillary fragment (AM F15818). The maxillary fragment was previously designated as the holotype of ‘Crocodylus (Bottosaurus)’ selaslophensis Etheridge, 1917 emend. As discussed by Hart et al (2019), AM F15818 does not show any significant similarity to either Crocodylus or Bottosaurus, yet shares characteristics consistent with Isisfordia, namely a caudal maxillary alveolar groove. Hart et al (2019) gave this new species the name Isisfordia molnari and diagnosed in based on features of the holotype (the braincase) and referred specimen (the maxilla). Because the referred specimen (AM F15818) displays a unique combination of characters The present work clarifies this taxonomic synonymy and has been registered in ZooBank, meeting the ICZN regulations
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