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Haptosphenus placodon ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4968319	https://www.gbif.org/species/4968319
PaleoBioDB ID (PBDB)	63649	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=63649

Rank

species

Taxonomy (GBIF)

Life : Animalia : Chordata : Reptilia : Squamata : Teiidae : Haptosphenus : Haptosphenus placodon

Taxonomy (PBDB)

Life : Animalia : Chordata : Reptilia : Squamata : Chamopsiidae : Haptosphenus : Haptosphenus placodon

Taxonomic Status (GBIF)

accepted

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
-	Lepidosauromorpha
superorder	Lepidosauria
order	Squamata	Oppel 1811
suborder	Lacertilia
infraorder	Scincomorpha	Camp 1923
-	Borioteiioidea	Nydam et al. 2007
family	Chamopsiidae
genus	Haptosphenus	Estes 1964
species	Haptosphenus placodon	Estes 1964

Generic Name

Haptosphenus

Scientific Name

Haptosphenus placodon Estes, 1964

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Haptosphenus placodon	species	belongs to Haptosphenus	stated with evidence	Estes, 1964
Haptosphenus placodon	species	belongs to Haptosphenus	stated without evidence	Estes and Berberian, 1970
Haptosphenus placodon	species	belongs to Haptosphenus	implied	Bryant, 1989
Haptosphenus placodon	species	belongs to Haptosphenus	stated without evidence	Gao and Fox, 1991

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

72.1 - 66.0 Ma
Late/Upper Cretaceous

Last Recorded Appearance

70.6 - 66.0 Ma
Late/Upper Cretaceous

Environment

terrestrial (based on Diapsida)

Motility

actively mobile (based on Osteichthyes)

Taphonomy

phosphatic (based on Vertebrata)

Primary Reference (PBDB)

R. Estes. 1964. Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming. University of California Publications in Geological Sciences 49:1-187

Fossil Distribution

Synonymy List

Year	Name and Author
1964	Haptosphenus placodon Estes pp. 115-117 fig. 54
1970	Haptosphenus placodon Estes and Berberian p. 5
1989	Haptosphenus placodon Bryant p. 45
1991	Haptosphenus placodon Gao and Fox
2012	Haptosphenus placodon Longrich et al.

References

Estes R. (1964) Fossil vertebrates from the Late Cretaceous Lance Formation, eastern Wyoming, University of California Publications in Geological Sciences 49, 1-187

Estes R., Berberian P. (1970) Paleoecology of a Late Cretaceous vertebrate community from Montana, Breviora 343, 1-35

Bryant L. J. (1989) Non-dinosaurian lower vertebrates across the Cretaceous-Tertiary boundary in northeastern Montana, University of California Publications in Geological Sciences 134, 1-107

Gao K. -Q., Fox R. C. (1991) New teiid lizards from the Upper Cretaceous Oldman Formation (Judithian) of southeastern Alberta, Canada, with a review of the Cretaceous record of teiids, Annals of Carnegie Museum 60 2, 145-162

Longrich N. R., Bhullar B.-A. S., et al (2012) Mass extinction of lizards and snakes at the Cretaceous–Paleogene boundary, Proceedings of the National Academy of Sciences 109 52, 21396-21401 doi:10.1073/pnas.1211526110

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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