Osteohistology of a Triassic dinosaur population reveals highly variable growth trajectories typified early dinosaur ontogeny

被引:13
作者
Barta, Daniel E. [1 ,2 ,3 ]
Griffin, Christopher T. [4 ,5 ]
Norell, Mark A. [2 ,3 ]
机构
[1] Oklahoma State Univ, Dept Anat & Cell Biol, Coll Osteopath Med Cherokee Nat, Tahlequah, OK 74464 USA
[2] Amer Museum Nat Hist, Richard Gilder Grad Sch, New York, NY 10024 USA
[3] Amer Museum Nat Hist, Div Paleontol, New York, NY 10024 USA
[4] Yale Univ, Dept Earth & Planetary Sci, New Haven, CT USA
[5] Yale Univ, Yale Peabody Museum Nat Hist, New Haven, CT USA
基金
美国国家科学基金会;
关键词
SEXUAL SELECTION; BODY-SIZE; BONE-HISTOLOGY; DEVELOPMENTAL PLASTICITY; DETERMINATE GROWTH; LONG BONES; PATTERNS; AGE; DYNAMICS; RATES;
D O I
10.1038/s41598-022-22216-x
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Intraspecific variation in growth trajectories provides a fundamental source of variation upon which natural selection acts. Recent work hints that early dinosaurs possessed elevated levels of such variation compared to other archosaurs, but comprehensive data uniting body size, bone histology, and morphological variation from a stratigraphically constrained early dinosaur population are needed to test this hypothesis. The Triassic theropod Coelophysis bauri, known from a bonebed preserving a single population of coeval individuals, provides an exceptional system to assess whether highly variable growth patterns were present near the origin of Dinosauria. Twenty-four histologically sampled individuals were less than a year to at least four years old and confirm the right-skewed age distribution of the Coelophysis assemblage. Poor correlations among size, age, and morphological maturity strongly support the presence of unique, highly variable growth trajectories in early dinosaurs relative to coeval archosaurs and their living kin.
引用
收藏
页数:14
相关论文
共 94 条
  • [1] Alcobendas M, 2000, HERPETOLOGICA, V56, P14
  • [2] Novel insight into the origin of the growth dynamics of sauropod dinosaurs
    Alejandro Cerda, Ignacio
    Chinsamy, Anusuya
    Pol, Diego
    Apaldetti, Cecilia
    Otero, Alejandro
    Eduardo Powell, Jaime
    Nestor Martinez, Ricardo
    [J]. PLOS ONE, 2017, 12 (06):
  • [3] Andrews R.M., 1982, Biology of Reptilia, V13, P273
  • [4] [Anonymous], 1993, BONE
  • [5] The evolution of the manus of early theropod dinosaurs is characterized by high inter- and intraspecific variation
    Barta, Daniel E.
    Nesbitt, Sterling J.
    Norell, Mark A.
    [J]. JOURNAL OF ANATOMY, 2018, 232 (01) : 80 - 104
  • [6] Osteohistology and taphonomy support social aggregation in the early ornithischian dinosaur Lesothosaurus diagnosticus
    Botha, Jennifer
    Choiniere, Jonah N.
    Barrett, Paul M.
    [J]. PALAEONTOLOGY, 2022, 65 (04)
  • [7] The paleobiology and paleoecology of South African Lystrosaurus
    Botha, Jennifer
    [J]. PEERJ, 2020, 8
  • [8] BRANDT LA, 1991, COPEIA, P1123
  • [9] Brinkman D., 1988, Journal of Vertebrate Paleontology, V8, P172
  • [10] Closure of neurocentral sutures during crocodilian ontogeny: Implications for maturity assessment in fossil archosaurs
    Brochu, CA
    [J]. JOURNAL OF VERTEBRATE PALEONTOLOGY, 1996, 16 (01) : 49 - 62