Research Interest

I am a postodoctoral researcher originally from Canada. I work with Jurassic crocodylomorphs (teleosauroids) and study their anatomy, phylogenetics, ecology and ontogeny. My current research interests include teleosauroid growth rates and microanatomy, in comparison with modern-day crocodylians. 

Projects

Publications

2015

  • Johnson MM*, Young MT, Steel L, Lepage Y. 2015. Steneosaurus edwardsi (Thalattosuchia, Teleosauridae), the largest known crocodylomorph of the Middle Jurassic. Biological Journal of the Linnean Society 115: 911–918. DOI 10.1111/bij.12525.

2017

  • Johnson MM*, Young MT, Steel L, Foffa D, Smith AS, Hua S, Havlik P, Howlett EA, Dyke G. 2018. Re-description of ‘Steneosaurus’ obtusidens Andrews, 1909, an unusual macrophagous teleosaurid crocodylomorph from the Middle Jurassic of England. Zoological Journal of the Linnean Society 182: 385-418. DOI 10.1093/zoolinnean/zlx035.

2018

  • Johnson MM*, Young MT, Brusatte SL, Thuy B, Weis R. 2018. A catalogue of teleosauroids (Crocodylomorpha: Thalattosuchia) from the Toarcian and Bajocian (Jurassic) of southern Luxembourg. Historical Biology 31: 1179-1194. DOI:10.1080/08912963.2018.1427090.

2019

  • Johnson MM*, Young MT, Brusatte SL. 2019. Re-description of two contemporaneous mesorostrine teleosauroids (Crocodylomorpha: Thalattosuchia) from the Bathonian of England and insights into the early evolution of Machimosaurini. Zoological Journal of the Linnean Society: zlz037. DOI 10.1093/zoolinnean/zlz037.
  • Sachs S*, Johnson MM, Young MT, Abel P. 2019. The mystery of Mystriosaurus: Re-describing the poorly known Early Jurassic teleosauroid thalattosuchians Mystriosaurus laurillardi and Steneosaurus brevior. Acta Palaeontologica Polonica 64: 565–579. DOI 10.4202/app.00557.2018.
  • Foffa D*, Johnson MM, Young MT, Steel L, Brusatte SL. Revision of the Late Jurassic deep-water teleosauroid crocodylomorph Teleosaurus megarhinus Hulke, 1871 and evidence of pelagic adaptations in Teleosauroidea. PeerJ 7:e6646. DOI 10.7717/peerj.6646.
  • Dridi J*, Johnson MM. 2019. On a longirostrine crocodylomorph (Thalattosuchia) from the Middle Jurassic of Tunisia. Geobios 56: 95-106. DOI 10.1016/j.geobios.2019.07.006.

2020

  • Johnson MM*, Young MT, Brusatte SL. 2020. The phylogenetics of Teleosauroidea (Crocodylomorpha, Thalattosuchia) and implications for their ecology and evolution. PeerJ 8:e9808 DOI 10.7717/peerj.9808
  • Johnson MM*, Young MT, Brusatte SL. 2020. Emptying the Wastebasket: a historical and taxonomic revision of the Jurassic crocodylomorph Steneosaurus. Zoological Journal of the Linnean Society: zlaa027.

2021

  • Kean KJ*, Foffa D, Johnson MM, young MT, Greitens G, Brusatte SL. 2021. First and most northern occurrence of a thalattosuchian crocodylomorph from the Jurassic of the Isle of Skye, Scotland. Scottish Journal of Geology 57(1): sjg2020-013. 
  • Young MT*, Brignon A, Sachs S, Hornung J, Foffa D, Kitson JJN, Johnson MM, Steel L. 2021. Cutting the Gordian knot: a historical and taxonomic revision of the Jurassic crocodylomorph Metriorhynchus. Zoological Journal of the Linnean Society. 

Education

2009-2013

  • Studium Bachelors of Science (Specialization Paleontology), University of Alberta (Arbeitsgruppe: Alison Murray und Phil Currie)

2013-2014

  • Masters of Research, University of Southampton

2016-2019

  • Doktorandin, University of Edinburgh (Arbeitsgruppe: Steve Brusatte)

2021-Present

  • PostDoc, Alexander von Humboldt Stiftung (Arbeitsgruppe: Erin Maxwell)