Paracimexomys group

Paracimexomys group

Taxobox
name = Paracimexomys group
fossil_range = Early Cretaceous - Paleocene
regnum = Animalia
phylum = Chordata
classis = Mammaliformes
ordo = Multituberculata
unranked_familia = Paracimexomys group
subdivision_ranks = Genera
subdivision =
* "Paracimexomys"
* "Bryceomys"
* "Dakotamys"
* ?"Cimexomys"
* ??"Cedaromys"
The Paracimexomys group is a loose grade of extinct mammals which are known from the Lower Cretaceous and possibly through to the Paleocene of North America. They were members of an also extinct order called Multituberculata. These were generally small, somewhat rodent-like creatures, some of whom shared the world with dinosaurs. As remains are rather sparse, it's not yet been possible to define this group with more certainty.

These mammals seem to represent animals that were anatomically somewhere between the more basal "Plagiaulacida" and the further derived members of Cimolodonta. The affinities of "Cimexomys" and "Cedaromys" are even less well established.

References

* Kielan-Jaworowska Z & Hurum JH (2001), "Phylogeny and Systematics of multituberculate mammals". "Paleontology" 44, p.389-429.
* Much of this information has been derived from [http://home.arcor.de/ktdykes/cimolod.htm] MESOZOIC MAMMALS; "basal" Cimolodonta, Cimolomyidae, Boffidae and Kogaionidae, an Internet directory.


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Paracimexomys — Taxobox name = Paracimexomys fossil range = Cretaceous regnum = Animalia phylum = Chordata classis = Mammalia ordo = Multituberculata unranked familia = Paracimexomys group genus = Paracimexomys subdivision ranks = Species subdivision = * ?P.… …   Wikipedia

  • Cimolodonta — Temporal range: Cretaceous Eocene A reconstruction of Ptilodus Scientific classification Kingdom …   Wikipedia

  • Cimexomys — Temporal range: Late Cretaceous Paleocene Cimexomys minor fossil Scientific classification Kingdom …   Wikipedia

  • Multituberculata — Multituberculates Temporal range: Middle Jurassic Oligocene, 160–35 Ma …   Wikipedia

  • Dakotamys — Temporal range: Late Cretaceous Conservation status Fossil Scientific classification Kingdom: Animalia Phyl …   Wikipedia

  • Cedaromys — Taxobox name = Cedaromys fossil range = Late Cretaceous status = Fossil regnum = Animalia classis = Mammalia ordo = Multituberculata genus = Cedaromys subdivision ranks = Species subdivision = * C. bestia * C. parvus Cedaromys ( Cedar mouse ) is… …   Wikipedia

  • Plagiaulacida — Taxobox name = Plagiaulacida regnum = Animalia classis = Mammalia ordo = Multituberculata subordo = Plagiaulacida subdivision ranks = Families subdivision = Albionbaataridae Allodontidae Eobaataridae Hahnodontidae Paulchoffatiidae… …   Wikipedia

  • Eobaataridae — Taxobox name = Eobaataridae fossil range = Jurassic? Early Cretaceous regnum = Animalia phylum = Chordata classis = Mammalia ordo = Multituberculata familia = Eobaataridae subdivision ranks = Genera subdivision = * Eobaatar * Loxaulax *… …   Wikipedia

  • Bryceomys — Taxobox name = Bryceomys fossil range = Late Cretaceous regnum = Animalia classis = Mammalia ordo = Multituberculata genus = Bryceomys subdivision ranks = Species subdivision = * B. fumoses * B. hadrosus * B. intermedius Bryceomys is an extinct… …   Wikipedia

  • Cimolodon — Temporal range: Late Cretaceous Scientific classification Kingdom: Animalia Phylum: Chordata Class …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”