Early and “Middle” Cretaceous Iguanodonts in Time and Space

Abstract

Iguanodontes del Cretácico temprano y "medio" en el tiempo y en el espacio Abstract Recent discoveries of diverse iguanodonts throughout the Cedar Mountain Formation (Utah, USA) have led us to assess the global diversity of Early Cretaceous iguanodonts. The record in England is more diverse than previously recognized due to Iguanodon being a wastebasket genus throughout the Twentieth Century. Several new taxa, previously recognized as generically distinct by Harry Grovier Seeley, are named. The spatial and temporal distributions of iguanodonts are plotted on global maps as a key to understanding the origin of the Cedar Mountain Formation iguanodonts. Keywords: Early Cretaceous, Iguanodonts, Dinosauria ResumenLos recientes descubrimientos de diversos iguanodontes en la Formación Cedar Mountain (Utah, EE.UU.) nos han llevado a valorar la diversidad global de los iguanodontes del Cretácico temprano. El registro en Inglaterra es más diverso de lo que previamente se ha reconocido, debido a que Iguanodon ha sido tratado como un género "cajón de sastre" a lo largo de todo el siglo XX. Varios de los nuevos taxones, previamente reconocidos como genéricamente distintos por Harry Seeley Grovier, se denominan. La distribución espacial y temporal de Iguanodontia se superponen sobre mapas globales como una clave para comprender el origen de los iguanodontes de la Formación Cedar Mountain.

<i>Delapparentia turolensis</i> nov. gen et sp., un nuevo dinosaurio iguanodontoideo (Ornithischia: Ornithopoda) en el Cretácico Inferior de Galve

“…(apartado de Comparación y discusión y Apéndice 2) han sido asignadas a nuevos géneros (Carpenter & Ishida, 2010;McDonald, 2011 (Gilmore 1909).…”

Dinosaurs and other vertebrates from the Papo-Seco Formation (Lower Cretaceous) of southern Portugal

“…The teeth are totally different from those of Hypsilophodon, and are bigger and wider (cheek teeth) than those of Camptosaurus. On the other hand, despite the wide geographic distribution of iguanodonts in the Early Cretaceous (Europe, North America, Asia, Africa and Australia) (Norman and Weishampel, 2004;Paul, 2007Paul, , 2012Norman, 2011aNorman, , 2013Carpenterand Ishida, 2010), the presence of Camptosaurus in the Barremian of Europe seems unlikely (Carpenter and Ishida, 2010;Paul, 2008). The teeth and maxilla bone have several similarities with the iguanodonts.…”

“…Now, however, both clades are reported from southern England and from the Galve fauna of Spain (Sánchez-Hernández et al, 2007). Among the dinosaurs, baryonychid theropods, pelorosaurid sauropods, the occurrence of three teeth of sauropod (Astrodon valdensis) at the Papo-Seco Formation (Lapparent and Zbyszewski, 1957;Dantas, 1990;Antunes and Mateus, 2003;Figueiredo, 2005Figueiredo, , 2010Mateus et al, 2011) should be noted, and iguanodontians are typical Early Cretaceous forms, known throughout Europe Sánchez-Hernández et al, 2007;Norman, 2011a (Sanz et al, 1984Buscalioni and Sanz, 1987;Ortega et al, 2006, Torcida Fernández-Baldor, 2006Paul, 2008Paul, , 2012Carpenter and Ishida, 2010; Llandres Serrano et al, 2013, Gasca et al, 2014. The remains of on the lateral surface of the centrum (Fig 6.2) that divides it into an upper and lower regions (Mannion et al, 2013).…”

“…discretion of the teeth and maxilla of Iguanodonts described in the Barremian of Western Europe defined by Carpenter and Ishida (2010), Ruiz-Omeñaca (2011) and Norman (2013). The following species are signed: Dollodon seelyi (nomen dubium, Norman, 2013), Iguanodon bernissartensis, Mantellisaurus atherfieldensis Proplanicoxa galtoni and Delapparentia turolensis.…”

A new specimen of Valdosaurus canaliculatus (Ornithopoda: Dryosauridae) from the Lower Cretaceous of the Isle of Wight, England

“…It is possible that other taxa, represented by isolated but potentially distinctive material, were also present (Galton, 2009) and other names have been proposed for Wessex Formation iguanodontian taxa (e.g. Hulke, 1879Hulke, , 1882Lydekker, 1888;Paul, 2008;Carpenter and Ishida, 2010), but these are currently regarded either as nomina dubia or as junior synonyms of the aforementioned taxa (Norman, 2004(Norman, , 2012McDonald, 2012).…”