Growth curve of Psittacosaurus mongoliensis Osborn (Ceratopsia: Psittacosauridae) inferred from long bone histology

  title={Growth curve of Psittacosaurus mongoliensis Osborn (Ceratopsia: Psittacosauridae) inferred from long bone histology},
  author={Gregory M. Erickson and T. A. Tumanova},
  journal={Zoological Journal of the Linnean Society},
  • G. Erickson, T. A. Tumanova
  • Published 1 December 2000
  • Geography, Environmental Science
  • Zoological Journal of the Linnean Society
Abstract The skeleton undergoes substantial histological modification during ontogeny in association with longitudinal growth, shape changes, reproductive activity, and fatigue repair. This variation can hinder attempts to reconstruct life history attributes for individuals, particularly when only fossil materials are availble for study. Histological examinations of multiple elements throughout development provide a means to control for such variability and facilitate accurate life history… 

Figures and Tables from this paper

Abstract Four distinct stages have been identified in the ontogeny of Diictodon feliceps based on variations in cortical thickness, organization of primary osteons, porosity, incidence of growth
Aging, Maturation and Growth of Sauropodomorph Dinosaurs as Deduced from Growth Curves Using Long Bone Histological Data: An Assessment of Methodological Constraints and Solutions
All Sauropodomorpha reached full size within a time span and had similar maximum growth rates to scaled-up modern megaherbivores and ratites, but growth rates of Sauropodaethorpha were lower than of an average mammal and older at maturation than scaled- up ratites and average mammals.
Bone histology of Protoceratops andrewsi from the LateCretaceous of Mongolia and its biological implications
First study of Protoceratops bone tissue is presented, describing microstructure, extent of remodeling, and growth tempo changes in ontogeny, which suggests changes in bone proportions in a similar manner as it was observed in a more basal Psittacosaurus.
Ontogenetic stages of ceratopsian dinosaur Psittacosaurus in bone histology
It is shown that P. lujiatunensis grew fast in early stages (hatchling, juvenile, and subadult), according to the density of vascular canals and the different type of bone tissue; the deposition of parallel fibred bone tissue in the outer cortex of the subadult stage indicates that growth rate was slowing down.
Osteohistology and growth dynamics of the Brazilian noasaurid Vespersaurus paranaensis Langer et al., 2019 (Theropoda: Abelisauroidea)
The predominant parallel-fibered bone matrix suggests that Vespersaurus grew more slowly than most theropods, including other abelisauroids, in a pattern shared with the noasaurines Masiakasaurus knopfleri from Madagascar and CPPLIP 1490 from Brazil.
Palaeobiological implications of the osteohistology of a basal sauropodomorph dinosaur from South Africa
The anatomy and histology of several dinosaur skeletal elements recovered from the Early Jurassic Upper Elliot Formation of South Africa are examined and show evidence for a pathology, possibly osteomyelitis in one of the ribs studied.
Sizing the Jurassic theropod dinosaur Allosaurus: Assessing growth strategy and evolution of ontogenetic scaling of limbs
Phylogenetic optimization suggests that large theropods independently evolved reduced humeral, ulnar, and tibial lengths by a phyletic reduction in longitudinal growth relative to the femur.
A Life Table for Psittacosaurus lujiatunensis: Initial Insights Into Ornithischian Dinosaur Population Biology
The static life table analysis revealed the same general pattern of survivorship as tyrannosaurs including increased attrition before the attainment of full adult size, suggesting that most nonavian dinosaurs may have had a similar life history strategy.
Developmental Plasticity in the Life History of a Prosauropod Dinosaur
Long-bone histology indicates that the most common early dinosaur, the prosauropod Plateosaurus engelhardti from the Upper Triassic of Central Europe, had variable life histories, and was influenced by environmental factors, as in modern ectothermic reptiles, but not in mammals, birds, or other dinosaurs.
Osteohistological analyses reveal diverse strategies of theropod dinosaur body-size evolution
The first evidence of a lack of strong mechanistic or physiological constraints on size evolution in the largest bipeds in the fossil record is provided and evidence of one of the longest-living individual dinosaurs ever documented is provided.


Physiological implications of the bone histology of Syntarsus rhodesiensis (Saurischia: Theropoda)
The general bone histology is described initially and thereafter follow speculations on the animal's thermoregulatory ability, possible evidence for sexual dimorphism, and also the probable growth strategy it employed, as reflected in its bone Histology.
Age Determination and Rate of Growth in Polyodon spathula, by Means of the Growth Rings of the Otoliths and Dentary Bone
The smallest specimens now known were collected by Thompson (1933) near Grand Tower, Illinois, on the Mississippi River, and were from 17 mm. to 20 mm. in length.
Ontogenetic Changes in the Bone Histology of the Late Jurassic Ornithopod Dryosaurus lettowvorbecki
The results suggests that Dryosaurus grew rapidly throughout ontogeny without any pauses in its bone deposition rate, providing support to the hypothesis that dinosaurs probably exhibited a range of physiologies and growth patterns.
Bone microstructure of the Upper Cretaceous theropod dinosaur Troodon formosus
Bone microstructure of three third metatarsals and two tibiae of differing sizes from Troodon formosus was examined, finding highly-vascularized fibro-lamellar bone accounted for the majority of growth, with adult size possibly being reached in 3 to 5 years.
Skeletal growth and function in the California gull (Larus californicus)
This work addresses the conflict between development and skeletal function by analysing the ontogeny of skeletal strength in the California gull, Larus californicus, and suggests that the rate at which bones grow in length may be the rate limiting factor in wing development.
A comparative embryological study of two ornithischian dinosaurs
Osteo-logical and histological studies of a new hypsilophodontid, Orodromeus makelai, and the hadrosaurid Maiasaura peeblesorum indicate structural and morphological adaptations for their respective growth patterns and neonate behaviour.
Age estimation and longevity in reptiles.
  • J. Castanet
  • Environmental Science, Biology
  • 1994
For reptiles, because of their thermic metabolism (ectothermy), the physiological longevity must be strongly distinguished from the chronological longevity, especially for a comparison with that known for birds and most mammals.
Evidence of the Growth Plate and the Growth of Long Bones in Juvenile Dinosaurs
Histological and ultrastructural evaluation of the ends of long bones of juvenile dinosaurs from the Upper Cretaceous Two Medicine Formation of Montana revealed the preservation of growth plates, implying that an avian developmental pattern may have been present in these dinosaurs.
The evolution of the mechanical properties of amniote bone.
  • J. Currey
  • Biology, Environmental Science
    Journal of biomechanics
  • 1987
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.