An Early Cretaceous faunal and floral continental assemblage:Las Hoyas fossil site (Cuenca, Spain)

The Early Triassic ‘lizard’Colubrifer Campi: A Reassessment

“…Most small Mesozoic fossil skeletons still come either from ®ne-grained laminated limestones (e.g. Sanz et al 1988) or from microvertebrate sites (e.g. Evans 1998), and relatively few of these are known for the Triassic.…”

“…Unfortunately, most known Triassic microsites represent arid upland environments rather than mesic ones (Czatkowice, see below, is an exception). When there are Triassic localities comparable to Kirtlington (Middle Jurassic, England;Evans and Milner 1994), Guimarota (Upper Jurassic, Portugal;Seiffert 1973), the Purbeck Limestone Formation (Lower Cretaceous, England; Ensom et al 1987Ensom et al , 1994 and Las Hoyas (Lower Cretaceous, Spain; Sanz et al 1988), the missing Triassic records of both squamates and lissamphibians may be recovered. This potential is shown by the Lower Triassic locality of Czatkowice, Poland (Borsuk-Bialynicka et al 1999), where deposits representing locally mesic conditions have yielded a diversity of small reptiles, including a relatively derived lepidosauromorph (BorsukBialynicka et al 1999), as well as the only Triassic stem-group frog outside Madagascar (Evans and Borsuk-Bialynicka 1998).…”

A new mysid (Crustacea, Mysida) from the Ladinian Stage (Middle Triassic) of Conca de Barberà (Catalonia, NE Iberian Peninsula)

“…The partia1 reconstruction of specimen LH 343 initially attributed to the family Eryonidae (order Decapoda) by Sanz et al (1988) from the Lower Cretaceous of las Hoyas fossil site (Cuenca, Spain) led Rabadà (1990) to include it in the Mysida, but the lack of more and better specimens leaves its affiliation doubtful. With a habitus apparently similar to fossils described by Rabadà (1990), De Angeli and Rossi (2006) described Mysidopsis oligocenicus from the lower Oligocene of NE Italy, although its generic status is not clear due to a suboptimal state of preservation (Wittmann et al, 2014).…”

A new genus and species for the amiiform fishes previously assigned to Amiopsis from the Early Cretaceous of Las Hoyas, Cuenca, Spain

“…(3) Finally, the Barremian laminated limestones of Las Hoyas (Cuenca, Spain) have also yielded specimens traditionally referred to Amiopsis (e.g. Sanz et al, 1988;Poyato-Ariza, 2005a). Several amiiform taxa from this locality are currently under study; initially, the fish fauna of Las Hoyas was considered to be similar to that of El Montsec, at least at the generic level (Sanz et al, 1988), with three amiiform genera -Caturus, Amiopsis and Vidalamia -known from both.…”

“…Sanz et al, 1988;Poyato-Ariza, 2005a). Several amiiform taxa from this locality are currently under study; initially, the fish fauna of Las Hoyas was considered to be similar to that of El Montsec, at least at the generic level (Sanz et al, 1988), with three amiiform genera -Caturus, Amiopsis and Vidalamia -known from both. However, a more detailed comparison of both faunas has revealed that they differ more than initially thought with, for instance, the occurrence of several endemic taxa at Las Hoyas, such as the pycnodonts Turbomesodon praeclarus Poyato-Ariza & Wenz, 2004 and Stenamara mia Poyato-Ariza & Wenz, 2000, the gonorhynchiform Gordichthys conquensis Poyato-Ariza, 1994, and with different assemblages of primitive teleosts (PoyatoAriza, 1997; see also Poyato-Ariza & Martín-Abad, 2016).…”