A new genus of small polycotylid plesiosaur from the Upper Cretaceous of the Western Interior Seaway and a clarification of the genus Dolichorhynchops

RO Clark, FR O'Keefe, SE Slack - Cretaceous Research, 2024 - Elsevier
Polycotylids are plesiosaurian marine reptiles that evolved during the Early Cretaceous and
radiated into multiple genera during the Late Cretaceous. Here we describe a small new …

Estimating the evolutionary rates in mosasauroids and plesiosaurs: discussion of niche occupation in Late Cretaceous seas

D Madzia, A Cau - PeerJ, 2020 - peerj.com
Observations of temporal overlap of niche occupation among Late Cretaceous marine
amniotes suggest that the rise and diversification of mosasauroid squamates might have …

[HTML][HTML] High phenotypic plasticity at the dawn of the eosauropterygian radiation

A Laboury, TM Scheyer, N Klein, TL Stubbs, V Fischer - PeerJ, 2023 - peerj.com
The initial radiation of Eosauropterygia during the Triassic biotic recovery represents a key
event in the dominance of reptiles secondarily adapted to marine environments. Recent …

The macroevolutionary landscape of short-necked plesiosaurians

V Fischer, JA MacLaren, LC Soul, RF Bennion… - Scientific Reports, 2020 - nature.com
Throughout their evolution, tetrapods have repeatedly colonised a series of ecological
niches in marine ecosystems, producing textbook examples of convergent evolution …

[HTML][HTML] A reappraisal of the cranial and mandibular osteology of the spinosaurid Irritator challengeri (Dinosauria: Theropoda)

M Schade, OWM Rauhut, C Foth, O Moleman… - 2023 - palaeo-electronica.org
Although originally described almost three decades ago, the holotype of Irritator challengeri
from the Lower Cretaceous Romualdo Formation of Brazil still represents the most complete …

Paleocene resurrection of a crocodylomorph taxon: Biotic crises, climatic and sea level fluctuations

S Jouve, NE Jalil - Gondwana Research, 2020 - Elsevier
Postcranial material of a crocodylomorph from the Danian of Oulad Abdoun Basin (Morocco)
is described. Several characters, in particular the shape of its dorsal osteoderms, allows its …

Refining the marine reptile turnover at the Early–Middle Jurassic transition

V Fischer, R Weis, B Thuy - PeerJ, 2021 - peerj.com
Even though a handful of long-lived reptilian clades dominated Mesozoic marine
ecosystems, several biotic turnovers drastically changed the taxonomic composition of these …

A new elasmosaurid plesiosaurian from the Early Cretaceous of Russia marks an early attempt at neck elongation

V Fischer, NG Zverkov, MS Arkhangelsky… - Zoological Journal of …, 2021 - academic.oup.com
Plesiosaurian marine reptiles evolved a wide range of body shapes during the Jurassic and
Cretaceous, including long-necked forms. Many Late Cretaceous members of the clade …

A new elasmosaurid (Sauropterygia, Plesiosauria) from the upper levels of the La Colonia Formation (upper Maastrichtian), Chubut Province, Argentina

JP O'Gorman, AP Carignano, L Calvo-Marcilese… - Cretaceous …, 2023 - Elsevier
A new elasmosaurid, Chubutinectes carmeloi gen. et sp. nov., from the Chubut Province,
Argentina, is described. The holotype and only specimen of this species (MPEF-PV 5232) …

Polycotylidae (Sauropterygia, Plesiosauria) from the La Colonia Formation, Patagonia, Argentina: phylogenetic affinities of Sulcusuchus erraini and the Late …

JP O'Gorman - Cretaceous Research, 2022 - Elsevier
Polycotylids were a clade of short-necked plesiosaur that achieved a worldwide distribution
and a peak of diversity during the Albian–Turonian, reaching the K/Pg mass extinction with a …