A5018233686- Paleontology and Evolutionary Biology
- Evolution and Paleontology Studies
- Ichthyology and Marine Biology
- Geological formations and processes
- Amphibian and Reptile Biology
- Maritime and Coastal Archaeology
- Fish biology, ecology, and behavior
- Bat Biology and Ecology Studies
- Paleontology and Stratigraphy of Fossils
- Pleistocene-Era Hominins and Archaeology
- Fish Biology and Ecology Studies
- Turtle Biology and Conservation
- Geology and Paleoclimatology Research
University of Portsmouth
2010-2023
Research Article| February 01, 2010 Oxygen isotope evidence for semi-aquatic habits among spinosaurid theropods Romain Amiot; Amiot * 1Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy Sciences, #142 XiZhiMenWai DaJie, Beijing 100044, China3UMR CNRS 5125, Paléoenvironnements et Paléobiosphère, Université Lyon 1, 2 rue Raphaël Dubois, 69622 Villeurbanne Cedex, France *E-mail: romain.amiot@univ-lyon1.fr. Search other works by this author on: GSW Google Scholar Eric...
Bulk screening of Lower Cretaceous Wessex Formation (Wealden Group, Barremian) plant debris beds exposed on the south-east and south-west coasts Isle Wight, southern England, has resulted in recovery large quantities isolated chondrichthyan osteichthyan fish remains. Among these are teeth representing five species hybodontoid sharks: Egertonodus basanus, Lonchidion breve, crenulatum, Vectiselachos ornatus, Parvodus heterodon. Six additional tooth morphs have also been identified. Three...
A substantially complete skull of a small crocodyliform recently found on the foreshore near Yaverland south-east coast Isle Wight, southern England is described.The locality, mode preservation and associated matrix indicate that it derived from one plant debris beds Lower Cretaceous Wessex Formation (Barremian, Wealden Group).The dentition, unique among crocodyliforms, serves to confirm specimen referable the, until now, monotypic family Bernissartiidae.Apomorphies, including placement...
Abstract: Bulk screening of Early Cretaceous (Barremian) Wessex Formation strata exposed on the south‐east coast Isle Wight, southern England, has resulted in recovery neoselachian shark teeth referred to scyliorhinid Palaeoscyllium . These are first remains from British Wealden Group and represent geologically oldest yet recovered a freshwater deposit. This is also only known example non‐marine occurrence member Scyliorhinidae.
Abstract: Bulk screening of Early Cretaceous (Barremian) strata the Wessex Formation, exposed in sections on south‐west and south‐east coasts Isle Wight, southern England, has resulted recovery mammal remains, first to be obtained from Wealden Group since early 1970s. The fauna comprises at least six taxa represented by isolated teeth addition, case an as yet undescribed spalacotheriid, a partial dentary. One teeth, distal premolar, is unique tricuspid, single‐rooted morphology represents...
A new albanerpetontid, Wesserpeton evansae gen.et sp.nov., from the Early Cretaceous (Barremian) Wessex Formation of Isle Wight, southern England, is described.Wesserpeton established on basis a unique combination primitive and derived characters relating to frontals jaws which render it distinct currently recognized albanerpetontid genera: Albanerpeton (Late Pliocene Europe, Paleocene North America Late Asia); Celtedens Jurassic Europe); Anoualerpeton (Middle Europe Africa).Although...
Abstract: Bulk screening of Early Cretaceous (Barremian) Wealden Group strata the Wessex Formation exposed on south‐west and south‐east coasts Isle Wight, southern England, has resulted in recovery fragmentary remains pertaining to a new spalacolestine spalacotheriid mammal, Yaverlestes gassoni gen. et sp. nov. These represent first European record Spalacolestinae. The comprise dentulous incomplete dentary isolated upper lower molariforms, former representing most substantial mammal yet...
Until recently, the only mammal remains to be obtained from Early Cretaceous (Barremian, Wealden Group) Wessex Formation of Isle Wight, southern England were a poorly preserved left m2 and well I2 crown representing one or possibly two plagiaulacoid multituberculate species.These recovered in early 1970s but despite subsequent efforts by number workers recover additional Mesozoic none forthcoming until comprehensive bulk screening was undertaken study commenced 2002.This resulted recovery...
Eutherian mammals (Placentalia and all phylogenetically closer to placentals than marsupials) comprise the vast majority of extant Mammalia.Among these there is a phenomenal range forms sizes, but origins crown group are obscure.They lie within generally tiny Mesozoic, represented for most part by isolated teeth jaws, strongly conflicting evidence from phenomic molecular data as date origin both Eutheria Placentalia.The oldest purported eutherians Juramaia Upper Jurassic China, Eomaia...
Click to increase image sizeClick decrease size ACKNOWLEDGMENTS I thank D. Brockhurst for advising me of the existence 'conglomerate bed' and other horizons at Ashdown Brickworks yielding small vertebrate remains. Brockhurst, P. Austen, J. Austen are thanked assistance with collection samples providing measurements section as currently exposed. S. Chapman Ibstock Brick Limited is access pit. am also grateful staff Bexhill Museum in particular curator Porter. Brinkman, Royal Tyrrell...
Until now there have been no formal descriptions of pterosaur remains from the Cliff End Bone Bed Lower Cretaceous (Valanginian), Wadhurst Clay Formation, Wealden Supergroup, south-east England. This horizon yields abundant vertebrate material representing both aquatic and terrestrial taxa recent examination a large collection obtained by private collector has led to discovery two isolated teeth, referable same taxon. Tooth crown morphology differs that teeth informally reported Formation...