Taxonomy and historical inertia: Clidastes (Squamata: Mosasauridae) as a case study of problematic paleobiological taxonomy

I review the taxonomic history of two problematic mosasaur species, Clidastes liodontus and Clidastes moorevillensis. The genus Clidastes is thought to represent an early radiation of a diverse clade known as the Mosasaurinae. However, most phylogenetic analyses recover the genus as paraphyletic with respect to more highly nested mosasaurines such as Mosasaurus, Prognathodon, and Globidens. The fragmentary holotype of Clidastes liodontus was never figured or fully described, and was destroyed in World War II. Over 20 years after destruction of the holotype, relatively complete specimens were referred to Clidastes liodontus based upon a single, variable character. Another taxon, originally designated Clidastes liodontus moorevillensis in a master’s thesis and then elevated to Clidastes moorevillensis in a separate dissertation, has never been formally described and lacks definitive diagnostic characters that differentiate it from the contemporary concept of Clidastes liodontus. Clidastes provides an excellent example of how historical inertia in taxonomic nomenclature can build over decades and skew our interpretations of the diversity, paleobiology, biogeography, and biostratigraphy of a taxon. Clidastes liodontus is a nomen dubium and Clidastes moorevillensis a nomen nudum. I recommend that both names be abandoned. Removal of those names frees us from a burdensome taxonomy and eliminates cognitive biases that hinder objective understanding and exploration of early-diverging mosasaurines, and is a necessary first step toward a taxonomic revision of the lineage(s) involved.     

Settling Accounts: Retribution,Emotion and Memory during the Fall of Mussolini

Abstract

The fall of Mussolini on 25 July 1943, and the concomitant collapse of the Fascist regime, have long been recognized as a pivotal moment in the Second World War and, indeed, contemporary Italian history. To date, however, these events have been viewed almost exclusively ‘from above’, in terms of elite politics, international diplomacy, and military strategy. Drawing on the analytical frameworks of Alltagsgeschichte (‘everyday history’), the present contribution examines the experiences, reactions and behaviors of ordinary Italians during the fall of Fascism. In particular, it explores incidents of retributive and symbolic violence, political denunciation, and popular demonstration, in order to understand how individuals and communities expressed emotions and memories, negotiated relationships, and sought to redress grievances and antipathies developed over more than twenty years of ‘totalitarian’ dictatorship.     

Investigating Isotopic Niche Space: Using rKIN for Stable Isotope Studies in Archaeology

Journal of Archaeological Method and Theory - Archaeological applications of stable isotope data have become increasingly prevalent, and the use of these data continues to expand rapidly....     

Remarques sur l'emploi de l'ablatif et du génitif de qualité chez Tacite

Suetonius' Life of Augustus 52 emphasises Augustus' restraint with regard to divine honours and may have been written with the intention of contradicting Tacitus (Annales 1.10). Suetonius' statement that it was common for temples to be offered to proconsuls in the Republican period is not supported by the archaeological and epigraphical evidence. Two passages from Cicero's letters (ad Q.Fr. 1.1.26; ad Att. 5.21.7) have been seen as supporting evidence. They do not, however, necessarily provide evidence for the existence of temples to proconsuls, although it is possible that they may have been the source for Suetonius' statement.     

Virgil's Fourth Eclogue and the Eleusinian Mysteries 1

This article argues that Virgil's Fourth Eclogue can in part be understood in light of the influence of the Eleusinian Mysteries on Roman religion. In particular, it argues that the child can be compared with Ploutos and that the return of the Virgo reflects the myth of Persephone. The myths of Demeter at Eleusis are assimilated to the Roman myth of a golden age under the rule of Saturnus. The return of Persephone from the Underworld and the birth of the child signify an end to war. The possible significance of the poem to Augustan propaganda is also discussed.