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Despite the widespread application of high-resolution quantitative methods in bone taphonomy, very few studies have focused on projectile impact marks. Therefore, in a previous work, we explored the potential of 3D microscopy in distinguishing bone hunting injuries from other taphonomic marks, developing a widely applicable diagnostic framework based on experimental data and focused on Late Epigravettian projectiles. This paper aims to continue that research by applying 3D morphometrical analysis to zooarcheological bone surfaces, in order to verify the validity and feasibility of this method and evaluate the reliability of the experimental record. Here, we present the detailed analysis of a projectile impact mark, found on a rib of Ursus arctos from the Late Epigravettian site of Cornafessa rock shelter. The injury, located on the rib's external surface, consists of a drag with several flint fragments embedded. X-ray μCT volume rendering and SEM imaging allowed us to analyze bone microstructure and drag's qualitative features, while 3D measurements, processed through statistic, confirmed the interpretation of this mark as a hunting injury. The drag's morphometric features are consistent with the experimental ones, connecting this mark to Late Epigravettian composite projectiles and declaring this evidence as the first direct proof of a bear hunted by using bow and arrow. [ABSTRACT FROM AUTHOR]

Abstract: The Middle Paleolithic fossil human teeth from Taddeo cave in southwestern Italy were discovered in 1967, but to date only scanty and partially incorrect information has been published about them. The teeth were recovered in a reddish sandy layer from the cave’s floor, which is attributed either to an early phase of Würm I (OIS 5c or 5d) or a transition phase between Würm I and Würm II (OIS 5a). In this paper, we present a revised morphological description and morphometric comparisons of the four dental remains discovered. Apart from a classic morphometric comparison, we also provide a qualitative and quantitative assessment of the internal morphology with the aid of micro-CT imaging. In addition, virtual restoration and matching of adjacent teeth were performed with 3D digital modeling and Computer-Aided Design techniques. Occlusal Fingerprint Analysis was also employed to help correctly identify each tooth. While in the previous studies, Taddeo 1 was considered either an upper right canine or a lower right canine, in the present work it has been definitely identified as lower left canine. Taddeo 2 has been reclassified as a right P4 instead of a right P3. Based on the occlusal and interproximal wear, we have also shown that Taddeo 2 and Taddeo 3 (right M1) belong to the same individual. All of the teeth show characteristic Neanderthal features in crown morphology and fissure pattern. However, although Taddeo 4 shows morphological features typical of Neanderthal M1s, some morphometric results (large enamel thickness, low dentine volume) recall more modern humans than Neanderthals. This result might suggest that, at least for lower first molars, the Neanderthal range of variation is large and still not clearly understood. [Copyright &y& Elsevier]

The tadpoles of Yellow-bellied toad (Bombina variegata) can be easily recognized from other Italian anuran species, except those of B. pachypus (though the two congeneric species are allopatric). In this paper we report morphometric data on B. variegata tadpoles from a Lombard population living near a torrent at 450 m a.s.l. On a sample of 264 tadpoles (stages 19-44, according to Gosner, 1960) we measured the following five variables: snout-vent length, tail length, maximum tail height, total length and weight. We found a slight allometric relationship between snout-vent length and tail length, while, as expected, the weight is nearly proportional to the cube of linear measures. According to literature data, our results point to highly constant proportions during the development phases up to prometamorphic stages. The ratio between snout-vent length and tail length was about 0.75 during the whole growing phase, while from stage 42 the proportion increases as the resorption of the tail starts. [ABSTRACT FROM AUTHOR]

Using discriminant functions based on morphometric data is one of the most approved methods for sex and ancestry estimation on skeletons. Nevertheless, population data from various parts of the world is needed in order to reliably classify an individual into a group. Due to population variation even sex estimation is biased when there is a lack of adequate data. Software that computes discriminant functions based on morphometric data is Fordisc®. Unfortunately, the above mentioned effects reduce its applicability in countries other than the US. For improvement of this situation data collection is currently performed extensively. The present paper shows a comparison of an Italian sample from the identified modern skeletal collection of CAL (Collezione Antropologica Labanof) [1] (Cattaneo, 2018) at the Institute of Legal Medicine Milan, Italy with a Euro-American sample from the Forensic Data Bank at the University of Tennessee Knoxville, USA. Fordisc® 3.1 was used to study population differences and sexual dimorphism. The analyzes were performed on a selection of 19 highly influential measurements that are present in most individuals of both groups respectively. Italian crania show in relation to Euro-Americans wider and lower vaults with shorter cranial bases and wider faces. The degree of sexual dimorphism is similar in both groups. Yet there is a shift in the absolute value range for males and females that biases sex estimation by almost 25% when an individual is classified on the respective other discriminant function. Our results provide explanations for Fordisc®'s unsatisfying performance on non-US individuals. At the same time they show that significant improvement is achieved by adding more population samples to its dataset. [ABSTRACT FROM AUTHOR]