[图书][B] Oceans of Kansas: a natural history of the Western Interior Sea

MJ Everhart - 2017 - books.google.com
“Excellent... Those who are interested in vertebrate paleontology or in the scientific history of
the American midwest should really get a copy.”—PalArch's Journal of Vertebrate …

Evolutionary pathways toward gigantism in sharks and rays

C Pimiento, JL Cantalapiedra, K Shimada, DJ Field… - …, 2019 - academic.oup.com
Through elasmobranch (sharks and rays) evolutionary history, gigantism evolved multiple
times in phylogenetically distant species, some of which are now extinct. Interestingly, the …

Body, jaw, and dentition lengths of macrophagous lamniform sharks, and body size evolution in Lamniformes with special reference to 'off-the-scale'gigantism of the …

K Shimada, MA Becker, ML Griffiths - Historical Biology, 2021 - Taylor & Francis
ABSTRACT Extinct lamniform sharks (Elasmobranchii: Lamniformes) are well represented in
the late Mesozoic‒Cenozoic fossil record, yet their biology is poorly understood because …

Exceptionally preserved shark fossils from Mexico elucidate the long-standing enigma of the Cretaceous elasmobranch Ptychodus

R Vullo, E Villalobos-Segura… - … of the Royal …, 2024 - royalsocietypublishing.org
The fossil fish Ptychodus Agassiz, 1834, characterized by a highly distinctive grinding
dentition and an estimated gigantic body size (up to around 10 m), has remained one of the …

[HTML][HTML] A new cuspidate ptychodontid shark (Chondrichthyes; Elasmobranchii), from the Upper Cretaceous of Morocco with comments on tooth functionalities and …

M Amadori, R Kindlimann, E Fornaciari… - Journal of African Earth …, 2022 - Elsevier
The first articulated dentition of† Ptychodus from Africa is described herein. The specimen,
likely coming from the Turonian of the Asfla area (Goulmima region, southeastern Morocco) …

[图书][B] Selachians from the Upper Cretaceous (Santonian) Hosta Tongue of the Point Lookout Sandstone, central New Mexico: Bulletin 52

J Bourdon, K Wright, SG Lucas, JA Spielmann… - 2011 - books.google.com
Page 1 Bulletin 52 New Mexico Museum of Natural History & Science A Division of the
DEPARTMENT OF CULTURAL AFFAIRS Selachians from the Upper Cretaceous (Santonian) …

[HTML][HTML] Late Cretaceous coprolite from the Opole area (southern Poland) as evidence for a variable diet in shell-crushing shark Ptychodus (Elasmobranchii …

D Mazurek, M Antczak - PeerJ, 2023 - peerj.com
Background Coprolites, ie., fossilized faeces, are an important source of knowledge on the
diet and food processing mechanisms in the fossil record. Direct and indirect evidences for …

Articulated remains of the extinct shark Ptychodus (Elasmobranchii, Ptychodontidae) from the Upper Cretaceous of Spain provide insights into gigantism, growth rate …

PL Jambura, J Kriwet - PLoS One, 2020 - journals.plos.org
Due to their cartilaginous endoskeleton and the continuous tooth replacement, the
chondrichthyan fossil record predominantly consists of isolated teeth, which offer diagnostic …

Fossil marine vertebrates from the Codell Sandstone Member (middle Turonian) of the Upper Cretaceous Carlile Shale in Jewell County, Kansas, USA

KN Bice, K Shimada - Cretaceous Research, 2016 - Elsevier
Reported here is the first collective description of a marine vertebrate assemblage from the
Codell Sandstone Member (middle Turonian) of the Upper Cretaceous Carlile Shale in …

Dentition of Late Cretaceous shark, Ptychodus mortoni (Elasmobranchii, Ptychodontidae)

K Shimada - Journal of Vertebrate Paleontology, 2012 - Taylor & Francis
ABSTRACT Ptychodus (Elasmobranchii, Ptychodontidae) is an enigmatic durophagous
shark that lived in Cretaceous seas. Based on multiple articulated tooth plates of Ptychodus …