Biomechanics (Communication arising): Prey attack by a large theropod dinosaur

  title={Biomechanics (Communication arising): Prey attack by a large theropod dinosaur},
  author={Thomas Frazzetta and Kenneth V. Kardong},
Prey-capture strategies in carnivorous dinosaurs have been inferred from the biomechanical features of their tooth structure, the estimated bite force produced, and their diet. Rayfield et al. have used finite-element analysis (FEA) to investigate such structure–function relationships in Allosaurus fragilis, and have found that the skull was designed to bear more stress than could be generated by simple biting. They conclude that this large theropod dinosaur delivered a chop-and-slash 'hatchet… 

Dinosaur biomechanics

  • R. M. Alexander
  • Environmental Science
    Proceedings of the Royal Society B: Biological Sciences
  • 2006
Biomechanics has made large contributions to dinosaur biology, and techniques such as computational tomography and finite element analysis, and advances in computer modelling, have brought new opportunities.

The muscle-powered bite of allosaurus (dinosauria; theropoda): an interpretation of cranio-dental morphology

This model re-interpret the evident adaptations for gape and for recruitment of neck muscles in head depression of Allosaurus in terms of a muscle-powered bite directed at surfaces with moderate convexity, such as the bodies of very large pres.

Functional and evolutionary consequences of cranial fenestration in birds

Modeling and developmental experiments indicate that the lateral bar is load‐bearing and suggest that this function was transferred to other bony elements when it was lost in palaeognaths, and it is possible that the loss of the load‐ bearing lateral bar might have constrained diversification of skull morphology in palaiognaths and thus limited taxonomic diversity within the group.

Using finite-element analysis to investigate suture morphology: a case study using large carnivorous dinosaurs.

  • E. Rayfield
  • Environmental Science
    The anatomical record. Part A, Discoveries in molecular, cellular, and evolutionary biology
  • 2005
It was discovered that Allosaurus cranial sutures appear generally capable of accommodating stress and strain patterns generated during biting and it is argued that useful information can be obtained from finite-element models of extinct animals, providing that adequate assumptions are made and appropriate questions asked.

Mechanical stress as the main factor in skull design of the fossil reptile Proterosuchus (Archosauria)

The aim of this study of the crocodile-like fossil Proterosuchus is to obtain a simplified model, which is, in shape and internal structure, as close as possible to the natural counterpart.

Jaw musculature and jaw mechanics of Sebecus icaeorhinus Simpson, 1937 (Mesoeucrocodylia, Sebecosuchia)

  • R. Molnar
  • Environmental Science, Geography
    Earth and Environmental Science Transactions of the Royal Society of Edinburgh
  • 2012
The presence of muscle and tendon attachments in Sebecus suggests the adductor structure of mesoeucrocodylians is conservative and was established before divergence of the sebecosuchian and neosuchians lineages.

Finite Element Analysis and Understanding the Biomechanics and Evolution of Living and Fossil Organisms

Finite element analysis has much potential in addressing questions of form-function relationships, providing appropriate questions are ask, and explicit hypothesis-testing bridges these two standpoints.

Evolution of the vomer and its implications for cranial kinesis in Paraves

It is concluded that cranial kinesis evolved relatively late, likely an innovation of the Neognathae, and is linked to the transformation of the vomer, enabling the evolution of a diversity of kinetic mechanisms and ultimately contributing to the extraordinary evolutionary success of this clade.

Komodo monitor (Varanus komodoensis) feeding behavior and dental function reflected through tooth marks on bone surfaces, and the application to ziphodont paleobiology

Both feeding behavior and tooth marks indicate that ziphodont crowns are ideal for defleshing by being drawn distally through a carcass by Varanus komodoensis, the Komodo monitor.



Cranial design and function in a large theropod dinosaur

This work has generated the most geometrically complete and complex FEA model of the skull of any extinct or extant organism and used this to test its mechanical properties and examine, in a quantitative way, long-held hypotheses concerning overall shape and function.

Bite-force estimation for Tyrannosaurus rex from tooth-marked bones

The discovery of skeletal remains with bite marks from Tyrannosaurus rex makes it possible to estimate, through indentation simulations on bovine ilia, the bite forces produced by T. rexduring feeding, and these estimates rival the largest bite forces determined for any taxon to date and suggest thatT.

Functional Morphology in Vertebrate Paleontology

This paper presents a meta-analysis of the evolution of the hindlimb and tail from basal theropods to birds and the consequences of skull flattening in crocodilians and an analysis of the posture and gait of ceratopsian dinosaurs.

Rapid braincase evolution between Panderichthys and the earliest tetrapods

The complete braincase of the fish Panderichthys rhombolepis is presented, showing that the braincase retained the intracranial joint, conforming wholly to the generalized pattern of lobe-finned fish, and sharing no obvious derived features with tetrapods.

Advances in herpetology and evolutionary biology

Reading advances in herpetology and evolutionary biology is also a way as one of the collective books that gives many advantages.

A functional consideration of cranial kinesis in lizards

Cranial Form and Function in a Large theropod Dinosaur : A Study Using Finite Element Analysis

  • Thesis , Univ . Cambridge
  • 1992