Read the Beforeitsnews.com story here. Advertise at Before It's News here.

By David Peters
Contributor profile | More stories

Story Views
Now:
Last hour:
Last 24 hours:
Total:

Bolotridon enters the TST between Thrinaxodon and Chiniquodon

Thursday, July 15, 2021 14:57

% of readers think this story is Fact. Add your two cents.

Pusch, Kammerer and Fröbisch 2021 redescribe
a basal cynodont using µCT scans.

In a clade of basal cynodont predators
Bolotridon frerensis (Broili and Schröder 1934; Pusch, Kammerer and Fröbisch 2021; BSPG 1934-VIII-7; Figs. 1, 2) has laterally-facing orbits, distinct from the forward-facing orbits of related taxa. Bolotridon was originally considered a non-eucyndont cynodont, then a sister to Eucynodontia (= all cynodonts more derived than Thrinaxodon).

Bolotridon nests between
Thrinaxodon and Chiniquodon in the Therapsid Skull Tree (TST, 76 taxa). This nesting agrees with the Eucynodontia hypothesis of interrelationships.

From the abstract
“Here, we present a redescription of Bolotridon frerensis based on computed tomographic (CT) reconstruction. This new information is used to test the currently unstable phylogenetic placement of Bolotridon.”

Figure 3. Image from an earlier post, not to scale. Chiniquodon had erect hind limbs and sprawling forelimbs, the first stage in parasagittal locomotion, a requirement for the invention of the diaphragm.

Oddly,
Chiniquodon is not a taxon in the Pusch et al. 2021 cladogram. It was mentioned only once in the text.

References
Broili F and Schröder J 1934. Beobachtungen an Wirbeltieren der Karrooformation. II. Über den Cynodontier Tribolodon frerensis Seeley. Sitzungsberichte der Bayerischen Akademie der Wissenschaften, Sonderdruck aus dem Jahrgang 1934 163–177.
Pusch LC, Kammerer CF and Fröbisch J 2021. Cranial anatomy of Bolotridon frerensis, an enigmatic cynodont from the Middle Triassic of South Africa, and its phylogenetic significance. PeerJ 9:e11542 DOI 10.7717/peerj.11542

Source: https://pterosaurheresies.wordpress.com/2021/07/16/bolotridon-enters-the-tst-between-thrinaxodon-and-chiniquodon/

Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world.

Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.

"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.

Please Help Support BeforeitsNews by trying our Natural Health Products below!

Order by Phone at 888-809-8385 or online at https://mitocopper.com M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at https://www.herbanomic.com M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at https://www.herbanomics.com M - F 9am to 5pm EST

Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!

HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation.

Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.

MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)

Oxy Powder - Natural Colon Cleanser! Cleans out toxic buildup with oxygen!

Nascent Iodine - Promotes detoxification, mental focus and thyroid health.

Smart Meter Cover - Reduces Smart Meter radiation by 96%! (See Video).

Comments

Online:
Visits:	1,598,866,082
Stories:	8,137,453