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Baptornithidae ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	Not linked to a GBIF record.
PaleoBioDB ID (PBDB)	39246	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=39246

Rank

family (PBDB)

Taxonomy (PBDB)

Life : Animalia : Chordata : Aves : Hesperornithiformes : Baptornithidae

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Sauropsida	Huxley 1864
class	Reptilia	Laurenti 1768
subclass	Eureptilia
-	Romeriida	Gauthier et al. 1988
-	Diapsida
-	Eosuchia
-	Neodiapsida	Benton 1985
-	Sauria	Gauthier 1984
-	Archosauromorpha
-	Crocopoda	Ezcurra 2016
-	Archosauriformes	Gauthier 1986
-	Eucrocopoda	Ezcurra 2016
-	Archosauria
informal	Avemetatarsalia	Benton 1999
-	Ornithodira	Gauthier 1986
-	Dinosauromorpha	Benton 1985
-	Dinosauriformes	Novas 1992
-	Dinosauria
-	Saurischia
-	Theropoda
-	Neotheropoda	Bakker 1986
-	Averostra	Paul 2002
-	Tetanurae	Gauthier 1986
order	Avetheropoda	Paul 1988
suborder	Coelurosauria	Huene 1914
-	Maniraptora	Gauthier 1986
-	Paraves	Sereno 1997
class	Aves	Linnaeus 1758
-	Pygostylia	Chiappe 2002
-	Ornithothoraces	Chiappe and Calvo 1994
-	Ornithuromorpha	Chiappe et al. 1999
subclass	Ornithurae	Haeckel 1866
order	Hesperornithiformes	Fürbringer 1888
family	Baptornithidae	American Ornithologists' Union 1910

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Baptornithidae	family	belongs to Hesperornithiformes	stated with evidence	Wetmore, 1960
Baptornithidae	family	belongs to Podicipediformes	stated without evidence	Brodkorb, 1971
Baptornithidae	family	belongs to Hesperornithiformes	stated without evidence	Martin and Tate, 1976
Baptornithidae	family	belongs to Hesperornithiformes	implied	Carroll, 1988
Baptornithidae	family	belongs to Hesperornithiformes	stated without evidence	Tokaryk, 1992
Baptornithidae	family	belongs to Hesperornithiformes	stated with evidence	Kurochkin, 2000
Baptornithidae	family	belongs to Hesperornithiformes	stated without evidence	Rees and Lindgren, 2005
Baptornithidae	family	belongs to Hesperornithiformes	stated with evidence	Bell and Chiappe, 2016

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

99.6 - 93.5 Ma
Late/Upper Cretaceous

Last Recorded Appearance

72.1 - 66.0 Ma
Late/Upper Cretaceous

Environment

marine (based on Hesperornithiformes)

Motility

actively mobile (based on Theropoda)

Diet

carnivore (based on Coelurosauria)

Reproduction

oviparous, dispersal=direct/internal,mobile (based on Theropoda)

Ontogeny

accretion,modification of parts (based on Theropoda)

Taphonomy

hydroxylapatite,compact or dense (based on Theropoda)

Primary Reference (PBDB)

R. L. Carroll. 1988. Vertebrate Paleontology and Evolution

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Baptornis ✝ genus	listed (PBDB)		9	89.8 Ma Late/Upper Cretaceous	83.5 Ma Late/Upper Cretaceous
Judinornis ✝ genus	listed (PBDB)		1	72.1 Ma Late/Upper Cretaceous	72.1 Ma Late/Upper Cretaceous

Synonymy List

Year	Name and Author
1910	Baptornithidae American Ornithologists' Union
1940	Baptornithidae Wetmore p. 4
1960	Baptornithidae Wetmore p. 23
1971	Baptornithidae Brodkorb p. 39
1976	Baptornithidae Martin and Tate, Jr. p. 37
1984	Baptornithidae Martin p. 146
1988	Baptornithidae Carroll

Year	Name and Author
1992	Baptornithidae Tokaryk p. 1010
1997	Baptornithidae Tokaryk et al. p. 172
2000	Baptornithidae Kurochkin p. 546
2005	Baptornithidae Rees and Lindgren p. 1322
2007	Baptornithidae Martin and Cordes-Person p. 229
2016	Baptornithidae Bell and Chiappe

References

Carroll R. L. (1988) , Vertebrate Paleontology and Evolution, 1-698

Wetmore A. (1960) A classification for the birds of the world, Smithsonian Miscellaneous Collections 139 11, 1-37

Brodkorb P. (1971) Origin and evolution of birds, Avian Biology 1, 19-55

Martin L. D., Tate, Jr. J. (1976) The skeleton of Baptornis advenus (Aves: Hesperornithiformes), Smithsonian Contributions to Paleobiology 27, 35-66

Martin L. D. (1984) A new hesperornithid and the relationships of the Mesozoic birds, Transactions of the Kansas Academy of Science 87 3/4, 141-150

Tokaryk T. T. (1992) Baptornis sp. (Aves: Hesperornithiformes) from the Judith River Formation (Campanian) of Saskatchewan, Canada, Journal of Paleontology 66 6, 1010-1012

Tokaryk T. T., Cumbaa S. L., et al (1997) Early Late Cretaceous birds from Saskatchewan, Canada: the oldest diverse avifauna known from North America, Journal of Vertebrate Paleontology 17 1, 172-176

Kurochkin E. N. (2000) Mesozoic birds of Mongolia and the former USSR, The Age of Dinosaurs in Russia and Mongolia, 533-559

Rees J., Lindgren J. (2005) Aquatic birds from the Upper Cretaceous (lower Campanian) of Sweden and the biology and distribution of hesperornithiforms, Palaeontology 48 6, 1321-1329

Martin J. E., Cordes-Person A. (2007) A new species of the diving bird Baptornis (Ornithurae, Hesperonithiformes) from the lower Pierre Shale Group (Upper Cretaceous) of southwestern South Dakota, Geological Society of America Special Paper 427, 227-237

Bell A., Chiappe L. M. (2016) A species-level phylogeny of the Cretaceous Hesperornithiformes (Aves: Ornithuromorpha): implications for body size evolution amongst the earliest diving birds, Journal of Systematic Palaeontology 14, 239-251

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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