Daniel T. Ksepka, Thomas A. Stidham, Thomas E. Williamson: Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K–Pg mass extinction. Proceedings of the National Academy of Sciences of the United States of America, 25.7.2017, nro 114, s. 8047–8052. PubMed:28696285doi:10.1073/pnas.1700188114ISSN 0027-8424Artikkelin verkkoversio.
Jacob C. Blokland, Catherine M. Reid, Trevor H. Worthy, Alan J. D. Tennyson, Julia A. Clarke, R. Paul Scofield: Chatham Island Paleocene fossils provide insight into the palaeobiology, evolution, and diversity of early penguins (Aves, Sphenisciformes). Palaeontologia Electronica, 8.12.2019, nro 22, s. 1–92. doi:10.2687/1009ISSN 1094-8074Artikkelin verkkoversio. (englanti)
Daniel T. Ksepka, Thomas A. Stidham, Thomas E. Williamson: Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K–Pg mass extinction. Proceedings of the National Academy of Sciences of the United States of America, 25.7.2017, nro 114, s. 8047–8052. PubMed:28696285doi:10.1073/pnas.1700188114ISSN 0027-8424Artikkelin verkkoversio.
Daniel T. Ksepka, Thomas A. Stidham, Thomas E. Williamson: Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K–Pg mass extinction. Proceedings of the National Academy of Sciences of the United States of America, 25.7.2017, nro 114, s. 8047–8052. PubMed:28696285doi:10.1073/pnas.1700188114ISSN 0027-8424Artikkelin verkkoversio.
palaeo-electronica.org
Jacob C. Blokland, Catherine M. Reid, Trevor H. Worthy, Alan J. D. Tennyson, Julia A. Clarke, R. Paul Scofield: Chatham Island Paleocene fossils provide insight into the palaeobiology, evolution, and diversity of early penguins (Aves, Sphenisciformes). Palaeontologia Electronica, 8.12.2019, nro 22, s. 1–92. doi:10.2687/1009ISSN 1094-8074Artikkelin verkkoversio. (englanti)
Daniel T. Ksepka, Thomas A. Stidham, Thomas E. Williamson: Early Paleocene landbird supports rapid phylogenetic and morphological diversification of crown birds after the K–Pg mass extinction. Proceedings of the National Academy of Sciences of the United States of America, 25.7.2017, nro 114, s. 8047–8052. PubMed:28696285doi:10.1073/pnas.1700188114ISSN 0027-8424Artikkelin verkkoversio.
Jacob C. Blokland, Catherine M. Reid, Trevor H. Worthy, Alan J. D. Tennyson, Julia A. Clarke, R. Paul Scofield: Chatham Island Paleocene fossils provide insight into the palaeobiology, evolution, and diversity of early penguins (Aves, Sphenisciformes). Palaeontologia Electronica, 8.12.2019, nro 22, s. 1–92. doi:10.2687/1009ISSN 1094-8074Artikkelin verkkoversio. (englanti)