@misc{indiciae0788eb6c1b04,
  title = {Morphological diversity and evolution of egg and clutch structure in amphibians},
  author = {Ronald Altig and Roy W. McDiarmid},
  year = {2007},
  doi = {10.1655/06-005.1},
  url = {https://pubs.usgs.gov/publication/5224854},
  note = {Source identifier: 5224854}
}