2024 in dinosaurs + Haplocanthosaurus + Germany dinosaur tracks find + mosasaurs + AMNH displays + more

[Ben Creisler]

Ben Creisler

bcre...@gmail.com

Some recent items:

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Terrible Lizards Podcast: TLS10E12 End of Year Megasode! with Dave Hone

https://terriblelizards.libsyn.com/tls10e12-end-of-year-megasode

https://www.youtube.com/watch?v=9BfDQhqS_0A

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10 of the Most Unique Dinosaur Species Discovered in 2024 -- Discover Magazine

https://www.discovermagazine.com/the-sciences/10-of-the-most-unique-dinosaur-species-discovered-in-2024

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Top 5 new dinosaur species described in 2024 (in Czech)

https://dinosaurusblog.com/2024/12/28/top-5-novych-dinosauru-z-roku-2024/

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Saurophaganax paper comments

https://sauropoda.blogspot.com/2024/12/thoughts-on-danison-et-al-2024-paper-on.html

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Haplocanthosaurus: New Specimen of Rare Jurassic Dinosaur Unearthed in Colorado

https://www.sci.news/paleontology/morrison-formation-haplocanthosaurus-13542.html

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Seventy Years of Happy [the Haplocanthosaurus]: The Dinosaur's Tale Continues

https://www.cmnh.org/learn/science-blog/2024/12/20/seventy-years-of-happy-the-dinosaurs-tale-continues

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Mysterious 193 million-year-old plant-eating dinosaur discovered in China
Paleontologists from Yunnan University have named this newly identified species as Archaeocursor asiaticus.

 
https://interestingengineering.com/science/herbivore-dinosaur-species-discovered-china

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Deciphering the Dinomummy: Taphonomy with Stephanie Drumheller

NDGS Paleo
8 min.

https://www.youtube.com/watch?v=MQYzJKTlYHA

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Deciphering the Dinomummy: Fossils vs Art
NDGS Paleo
4 min.

https://www.youtube.com/watch?v=338pfPjiXnc

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New dinosaur tracksite (in German)

Jahn Jochen Hornung, Fritz Klebe & Benjamin Englich (2024)
Neue Funde von Dinosaurierfährten in der tiefen Unterkreide des Bückebergs (Berriasium; NW-Deutschland)
[New occurrences of dinosaur tracks in the lowermost Cretaceous of the Bückeberg Mountain (Berriasian; northwestern Germany)]
Naturhistoria 166: (in German)
https://www.n-g-h.org/naturhistorica-166.html

Insgesamt sechs Fährtenhorizonte lassen sich im Obernkirchen-Sandstein (Barsinghausen-Subformation, Deister-Formation, Bückeberg-Gruppe, oberes Berriasium) des Westbruchs der Obernkirchener Sandsteinbrüche auf dem Bückeberg nachweisen. Im Zuge einer Grabung im Sommer 2020 wurden die Fährtenhorizonte AB3 und AB5 teilweise freigelegt und dokumentiert. Die freigelegten Flächen sind inzwischen weitgehend den Abbauaktivitäten zum Opfer gefallen. Insgesamt lassen sich im Fährtenbestand fünf Morphotypen von Dinosaurierfährten unterscheiden.

Expanded English abstract:

https://www.researchgate.net/publication/387270443_Neue_Funde_von_Dinosaurierfahrten_in_der_tiefen_Unterkreide_des_Buckebergs_Berriasium_NW-Deutschland

A total of six vertebrate track horizons are reported from the Obernkirchen Sandstone (Barsinghausen Member, Deister Formation, Bückeberg Group, upper Berriasian) at the Western Quarry of the Obernkirchen Sandstone Quarries on the Bückeberg mountain, southern Lower Saxony, northern Germany. During an excavation campaign in summer 2020, two of these horizons (AB3 and AB5) have been partially exposed and documented. The excavated areas have since been destroyed by ongoing quarrying activities. In total, five different morphotypes of dinosaur tracks have been identified, based on pes impressions. Morphotypes 1a and 1b (Caririchnium cf. lotus Xing, Wang, Pan & Chen, 2007) have been produced by adult iguanodont ornithopods. Morphotype 1c was also produced by iguanodont ornithopods but probably by subadult individuals. Morphotypes 1a and 1b are occasionally associated with manus impressions and indicate at least facultative quadruped locomotion. It is the first record of Caririchnium Leonardi, 1984 from Germany and the stratigraphic oldest reliably dated occurrence in the world. C. cf. lotus is much less abundant in the Obernkirchen Sandstone than the iguanodontian track type that is represented by morphotypes 1a and 1c, an unnamed ichnotaxon. Morphotypes 2 (Megalosauripus? sp.) and 3 (unnamed ichnotaxon) can be referred to mediumsized theropods trackmakers, that cannot be identified more precisely orthotaxonomically. At track horizon AB3 only adult iguanodontians (morphotypes 1a and 1b, each in a single long trackway) have been documented. Aside of the dinosaur tracks it is densely burrowed by invertebrates, especially bivalves (Lockeia isp.). Horizon AB5 features a dense dinoturbation (>40 footprints per c. 30 sqm) and tracks of subadult iguanodontians (morphotype 1c), and theropods (morphotypes 2 and 3). Raddatz-Antusch (2019) reported also adult iguanodontians (corresponding to morphotype 1b, C. cf. lotus) from this horizon, but they have not been observed during the 2020 campaign. Due to erosion, the majority of the tridactyle pes imprints on AB5 cannot be referred to a distinct morphotype. While traces of benthic invertebrate activity are absent, the surface is covered in small pits that are interpreted as impression of gas bubbles captured under microbial mats. This indicates a shallow, stagnant body of water that existed for a prolonged timespan to iteratively record the dinosaur tracks. Ichno- and lithofacies of this horizon correspond to that of the “Chicken Yard” (compare Richter et al. 2009, Richter & Böhme 2016) horizon at the adjacent Eastern Quarry. The morphotypes 1c and 2 occur in both localities. The horizon can be lithostratigraphically correlated and therefore traced over 700 m in SW–NE direction.

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Pterodactylus: New pterosaur family members discovered that lived 150 million years ago

https://www.earth.com/news/pterodactylus-family-relatives-discovered-of-first-pterosaur-150-million-years-ago/

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New insights into the evolution and paleoecology of Mosasaurs: most comprehensive study to date

Iconic extinct marine lizards continue to surprise us

https://www.uu.nl/en/news/new-insights-into-the-evolution-and-paleoecology-of-mosasaurs-most-comprehensive-study-to-date

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Embargoed Michael Polcyn doctoral thesis link

Mosasaurid evolution: morphology, phylogeny, and paleobiology

https://research-portal.uu.nl/en/publications/mosasaurid-evolution-morphology-phylogeny-and-paleobiology

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Cannibal Sea Dragons: Unveiling the Dark Secrets of Mosasaurs

https://scitechdaily.com/cannibal-sea-dragons-unveiling-the-dark-secrets-of-mosasaurs/

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98-Million-Year-Old Ichthyosaur Fossil Uncovered in New Zealand

https://www.sci.news/paleontology/new-zealand-platypterygiid-ichthyosaur-13493.html

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World's first sabertooth! (Therapsid)
RealPaleontology with Steve Wroe (video)
4 min.

https://www.youtube.com/watch?v=1wIFjHviHaY 

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Massive volcanic eruptions did not cause the extinction of dinosaurs

https://www.uu.nl/en/news/massive-volcanic-eruptions-did-not-cause-the-extinction-of-dinosaurs

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It’s time to renovate the AMNH fossil halls

https://extinctmonsters.net/2024/12/26/its-time-to-renovate-the-amnh-fossil-halls/

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Non-dino:

Megaloceros

https://prehistoricbeastoftheweek.blogspot.com/2013/03/irish-elk-prehistoric-animal-of-week.html

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OUT OF AFRICA (Afrotheria)
Prehistoric Parade with Dr. Donald Prothero (video)
6 min.

https://www.youtube.com/watch?v=8sGOx4HwGY8 

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HUMANS did not ELIMINATE the MEGAFAUNA in an INSTANT.
RealPaleontology with Steve Wroe (video)
10 min.

https://www.youtube.com/watch?v=DjbUR-JYXnU

[Gregory Paul]

Is interesting that since this shifted from the DML to the DMG, discussion activity has increased considerably. Why might that be? Perhaps the lateral discussion of the situation early this year rearose awareness of the site? Growing discontent with social media? 

GSPaul

[Jura]

I think another part of it is that fewer people are into mailing lists nowadays. I've also noticed that some contributors, such as yourself, are no longer blocked by the system (I would only ever see GSP e-mails in responses from other people). So, whatever weird bugs were in the old system did not carry over to the DMG.

Jason

[Gregory Paul]

Yesh, I get my own messages back these days

--
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[Andreas Johansson]

On the old list, I had the weird issue that most (but not all) Greg’s posts would be be sent to the spam folder, no matter how many I told Google were ”not spam”. No other poster seemed to be affected. 

None of his messages to the new one has had that happen that I’ve noticed. 

—
Andreas Johansson

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[Django Grootmyers]

I used to get a lot of DML messages sent to spam as well, especially Greg's. This does not seem to be happening anymore with the new list.


Best,

Django Grootmyers

To view this discussion visit https://groups.google.com/d/msgid/DinosaurMailingGroup/CACNGv5i82jC474yBDNCttr6wBDmuEne5zNGxCfqB5xcJ-zAfoA%40mail.gmail.com.

[Thomas Yazbek]

I agree with your suggestions here. I think maybe dissatisfaction with the Twitter/Bluesky splintering in particular might make Google Groups more attractive. I also think the 'demise' of DML also reminded people that this place still exists. I also think Google Groups just synergizes well for people because a lot of people use Gmail.

- Thomas Yazbeck

On Tue, Dec 31, 2024, 10:02 AM 'Gregory Paul' via Dinosaur Mailing Group <DinosaurMa...@googlegroups.com> wrote:

Is interesting that since this shifted from the DML to the DMG, discussion activity has increased considerably. Why might that be? Perhaps the lateral discussion of the situation early this year rearose awareness of the site? Growing discontent with social media? 

GSPaul

--
You received this message because you are subscribed to the Google Groups "Dinosaur Mailing Group" group.
To unsubscribe from this group and stop receiving emails from it, send an email to DinosaurMailingG...@googlegroups.com.

To view this discussion visit https://groups.google.com/d/msgid/DinosaurMailingGroup/660703872.3018026.1735657335603%40mail.yahoo.com.

[Thomas Richard Holtz]

In contrast to what most people are saying here, my experience is that paleontology discussions on both Twitter and Bluesky (and Facebook, too) have not slacked off at all. 

To view this discussion visit https://groups.google.com/d/msgid/DinosaurMailingGroup/CAPySu-XrHhTsERO9N0aOwRc9_UbxEtRB4h8YPpJ4Be7uf8Y6vg%40mail.gmail.com.

--

Thomas R. Holtz, Jr.
Email: tho...@umd.edu         Phone: 301-405-4084
Principal Lecturer, Vertebrate Paleontology

Office: CHEM 1225B, 8051 Regents Dr., College Park MD 20742

Dept. of Geology, University of Maryland
http://www.geol.umd.edu/~tholtz/

Phone: 301-405-6965
Fax: 301-314-9661              

Faculty Director, Science & Global Change Program, College Park Scholars

Office: Centreville 1216, 4243 Valley Dr., College Park MD 20742
http://www.geol.umd.edu/sgc
Fax: 301-314-9843

Mailing Address: 

                        Thomas R. Holtz, Jr.
                        Department of Geology
                        Building 237, Room 1117

                        8000 Regents Drive
                        University of Maryland
                        College Park, MD 20742-4211 USA

[Thomas Yazbek]

Rising tide lifts all ships, then.

To view this discussion visit https://groups.google.com/d/msgid/DinosaurMailingGroup/CAHQFgpqKf257yavVxdfXd_WN3dYEvOcm1XiUEp%2BNvqag9wiXZQ%40mail.gmail.com.

[Jeff Hecht]

Rather late on this, but I suspect the change to Google Groups made an important difference in spam filtering. If you're receiving email on Gmail, it's not likely to block incoming from Google Groups. If you're receiving on a university server or a personal domain, they also are less likely to block gmail than other servers because gmail has a better "reputation".  Before the move to Google Groups, I remember fishing a lot of Greg's comments out of the spam filter. 

-- Jeff Hecht

To view this discussion visit https://groups.google.com/d/msgid/DinosaurMailingGroup/CAPySu-UpQfQf5f2uPeGLYtz7HAuH8TH9AXFaEoMC4MnpMwGZAA%40mail.gmail.com.

Jeff Hecht, science and technology writer
525 Auburn St. Auburndale, MA 02466 USA
https://www.jeffhecht.com
je...@jeffhecht.com, v. 617-965-3834
Twitter @jeffhecht

Blue Sky jhecht.bsky.social 

[Ethan Schoales]

I will mention that, on the DMG, I don’t have to click on “reply all” to make messages go to everyone. I often forgot do to this on the DML. Otherwise, though, from my perspective the DMG is pretty similar to the DML.

To view this discussion visit https://groups.google.com/d/msgid/DinosaurMailingGroup/FF02C327-C6AD-4A9B-8FCD-499E7B1F1B76%40jeffhecht.com.