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Book chapter
Growth, age and size of the Jurassic pachycormid Leedsichthys problematicus (Osteichthyes: Actinopterygii)
The Jurassic pachycormid osteichthyan Leedsichthys problematicus is renowned for having been able to achieve prodigious size for a bony fish. Building on work of MARTILL (1986a), a thorough examination of all known material was conducted in order to constrain estimates of the size of this animal and examine its rate...Liston, Jeff ; Newbrey, Michael G. ; Challands, Thomas James ; Adams, Colin E
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Book chapter
The plasticity of gill raker characteristics in suspension feeders: Implications for Pachycormiformes
Pachycormids apparently represent part of the first radiation of the total group of teleosts, and therefore are important in understanding stem teleost phylogeny. Gill rakers (or fanunculi) are elements of the gill skeleton (branchial basket) in fishes that function primarily to protect respiratory lamellae, and sometimes have a secondary role...Liston, Jeff
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Book chapter
From obstetrics to oryctology: inside the mind of William Hunter (1718–1783)
Today William Hunter is remembered mainly for his pioneering work in obstetrics and for our understanding of the lymphatic system, but his interests were wide-ranging, encompassing artworks (the first to collect Chardin), archaeological, numismatic and bibliographical items. As a key figure in the Enlightenment, he was one of the few...Liston, Jeff
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Book chapter
Leedsichthys problematicus: Arthur Smith Woodward's ‘most embarrassing enigma’
The link between the renowned palaeoichthyologist Arthur Smith Woodward and the similarly lauded marine reptile collector Alfred Nicholson Leeds may seem an unlikely one, but they formed a close family friendship during their professional acquaintance. Amongst the many fish specimens described by Smith Woodward from Leeds’ Oxford Clay collection, the...Liston, Jeff
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Journal article
Scythes, sickles and other blades: defining the diversity of pectoral fin morphotypes in Pachycormiformes
The traditional terminology of ‘scythe’ or ‘sickle’ shaped is observed to be flawed as an effective descriptor for pectoral fin shape in pachycormids. The diversity of pachycormid pectoral fin shapes is assessed across the 14 recognised genera that preserve complete pectoral fins, and improved terms are defined to more effectively...Liston, Jeff
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Journal article
Cranial osteology of the Middle Jurassic (Callovian) Martillichthys renwickae (Neopterygii, Pachycormiformes) with comments on the evolution and ecology of edentulous pachycormiforms
Our understanding of the ecology and phylogenetic relationships of Pachycormiformes, a group of Mesozoic stem teleosts including the iconic Leedsichthys, has often been hindered by a lack of comprehensive morphological information. Micro‐CT scanning of an articulated, although flattened, cranium of the edentulous Martillichthys renwickae from the Middle Jurassic (Callovian) Oxford...Dobson, Claire ; Giles, Sam ; Johanson, Zerina ; Liston, Jeff ; Friedman, Matt
Martillichthys , fossil , CT‐scanning , evolution, ecology , and Pachycormiformes
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Journal article
New ophthalmosaurid ichthyosaurs from the European Lower Cretaceous demonstrate extensive ichthyosaur survival across the Jurassic-Cretaceous boundary.
Background Ichthyosauria is a diverse clade of marine amniotes that spanned most of the Mesozoic. Until recently, most authors interpreted the fossil record as showing that three major extinction events affected this group during its history: one during the latest Triassic, one at the Jurassic–Cretaceous boundary (JCB), and one (resulting...Fischer, Valentin ; Maisch, Michael W ; Naish, Darren ; Kosma, Ralf ; Liston, Jeff …
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Journal article
A basal thunnosaurian from Iraq reveals disparate phylogenetic origins for Cretaceous ichthyosaurs
Cretaceous ichthyosaurs have typically been considered a small, homogeneous assemblage sharing a common Late Jurassic ancestor. Their low diversity and disparity have been interpreted as indicative of a decline leading to their Cenomanian extinction. We describe the first post-Triassic ichthyosaur from the Middle East, Malawania anachronus gen. et sp. nov....Fischer, Valentin ; Appleby, Robert M ; Naish, Darren ; Liston, Jeff ; Riding, James B …
Malawania anachronus, Early Cretaceous, Parvipelvia, and Baracromia
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Journal article
Alfred Nicholson Leeds and the first fossil egg attributed to a ‘saurian’
Discovered by the nineteenth century collector Alfred Nicholson Leeds, the first object to be described (1898) as a fossil reptile egg is a unique find from the Oxford Clay near Peterborough. It also comes from one of a very small number of Jurassic localities worldwide that can claim to have...Liston, Jeff
Oxford Clay, Callovian, Alfred Nicholson Leeds, and dinosaur egg
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Journal article
Highly specialized suspension-feeding bony fish Rhinconichthys (Actinopterygii: Pachycormiformes) from the mid-Cretaceous of the United States, England, and Japan
We re-define the Cretaceous bony fish genus Rhinconichthys by re-describing the type species, R. taylori, and defining two new species; R. purgatorensis sp. nov. from the lowermost Carlile Shale (middle Turonian), southeastern Colorado, United States, and R. uyenoi sp. nov. from the Mikasa Formation (Cenomanian), Middle Yezo Group, Hokkaido, Japan....Schumacher, Bruce A ; Shimada, Kenshu ; Liston, Jeff ; Maltese, Anthony
Planktivory, Cenomanian, Osteichthyes, Turonian, Pachycormid, and Phylogeny