![]() that also occur in the Chamisa Field Site assemblage by exhibiting narrower main cusps and cusplets, containing many longitudinal striations on the lingual surface of the main cusp, and having roots with a nutritive groove on the lingual protuberance.Ī lag deposit between the Tocito Sandstone and Mulatto Tongue of the Upper Cretaceous Mancos Shale in Sandoval County, New Mexico, USA, contains a fossil assemblage of late Turonian–early Coniacian chondrichthyans and osteichthyans. kopingensis (Davis, 1890), Cretalamna "appendiculata" (Agassiz, 1843), and Cretodus sp. ![]() raphiodon are distinct from those of Archaeolamna cf. raphiodon is recorded in Texas, Kansas, New Mexico, Arizona, Utah, Colorado, Wyoming, Nebraska, and South Dakota (e.g., Becker et al., 2010 Bice and Shimada, 2016 Cappetta and Case, 1999 Cicimurri, 2001Cicimurri,, 2004Edwards, 1976 Hamm and Shimada, 2002 Johnson and Lucas, 2003 Ouroumova et al., 2016 Russell, 1988 Speilmann et al., 2009 Welton and Farish, 1993 Lucas, 1990, 1992 Williamson et al., 1989 Williamson et al.,, 1993Wolberg, 1985). Extensive literature exists on Scapanorhynchus raphiodon, including reports from CenomanianeConiacian deposits globally (e.g., Niedzwied zki and Kalina, 2003 Cappetta, 2012 Guinot et al., 2013 Retzler et al., 2013). However, due to the recovery of only four fragmentary specimens from the Chamisa Field Site, we refrain from species-level taxonomic identification of Meristodonoides teeth in our sample. rajkovichi, have been reported from AlbianeCampanian WIS deposits in Texas, Utah, Kansas, Wyoming, Montana, Alberta, and Saskatchewan (e.g., Beavan and Russell, 1999 Becker et al., 2010 Bice and Shimada, 2016 Bourdon et al., 2011 Cappetta and Case, 1999 Case, 1978Case,, 1987Cicimurri, 2001 Cook et al., 2008 Cumbaa et al., 2006 Eaton et al., 1999 Everhart, 2011 Hamm and Cicimurri, 2011 Johnson and Lucas, 2003 Ouroumova et al., 2016 Schubert et al., 2017 Speilmann et al., 2009 Thurmond, 1971 Underwood and Cumbaa, 2010 Welton and Farish, 1993 Williamson and Lucas, 1992 Williamson et al., 1989 Williamson et al.,, 1993Wolberg, 1985a,b). To date, several distinct Meristodonoides (Hybodus) species, including M. Teeth attributed to Meristodonoides from Upper Cretaceous deposits of North America also contain a single pair of broadly-spaced lateral cusplets with a smooth cutting edge that is continuous with the main cusp, and were previously assigned to another hybodontid genus, Hybodus (e.g., Underwood and Cumbaa, 2010). This genus is common in the Iberian Range and is usually found in Paleogene deposits as reelaborated specimens, but never found in the Neogene deposits. belongs to the family Ptychogonidae, an enigmatic group of sawfishes that that ranges from the Albian to the Maastrichtian. The site where the tooth was found, Corral de Brisca 0B, consists in grey shales topped by black shales with abundant remains of fossil snails and bones surrounded by Cretaceous dolomitic limestones. ![]() The Miocene deposits from the Ribesalbes-Alcora Basin form a complex graben belonging to the Neogene rift system superimposed on the preexisting structural features of the South East of the Iberian Range, and are composed of detrital and calcareous materials deposited in alluvial and lacustrine environments overlying a Cretaceous basement. This is the case with a single tooth of Ptychotrygon sp., a batoid from Cretaceous seas, found between Miocene mammal remains in the Ribesalbes-Alcora Basin. As the name implies, such fossils are usually eroded out of the deposit in which they were originally entombed, and subsequently transported and reburied in a younger bed. Reelaborated fossils are rare components of the palaeontological record which can preserve evidence of unique post-mortem histories. ![]()
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