#FossilFriday This morning we were shown a Ruby Ranch wood site preserving insect frass (poop). More importantly the site looks like extremely rare pollen site near Aptian-Albian boundary...fingers crossed. Very promising..screen wash for micros..too... @utahpaleo-ufop.bsky.social
November 8, 2025 at 12:27 AM
#FossilFriday This morning we were shown a Ruby Ranch wood site preserving insect frass (poop). More importantly the site looks like extremely rare pollen site near Aptian-Albian boundary...fingers crossed. Very promising..screen wash for micros..too... @utahpaleo-ufop.bsky.social
Welcome back to #fossilfriday
Here is the fresh water Dastilbe elongatus. This specimen comes from the Lower Cretaceous (Aptian-Albian) Santana Formation in Serra de Araipe, Brazil. The Santana Formation is well known for its exquisite preservation of pterosaurs fossils.
Here is the fresh water Dastilbe elongatus. This specimen comes from the Lower Cretaceous (Aptian-Albian) Santana Formation in Serra de Araipe, Brazil. The Santana Formation is well known for its exquisite preservation of pterosaurs fossils.
October 10, 2025 at 4:37 PM
Welcome back to #fossilfriday
Here is the fresh water Dastilbe elongatus. This specimen comes from the Lower Cretaceous (Aptian-Albian) Santana Formation in Serra de Araipe, Brazil. The Santana Formation is well known for its exquisite preservation of pterosaurs fossils.
Here is the fresh water Dastilbe elongatus. This specimen comes from the Lower Cretaceous (Aptian-Albian) Santana Formation in Serra de Araipe, Brazil. The Santana Formation is well known for its exquisite preservation of pterosaurs fossils.
Skeletal reconstruction of Zavacephale rinpoche holotype MPC-D 100/1209.
Scale bars are 1 m and 5 cm x 5 cm.
Scale bars are 1 m and 5 cm x 5 cm.
September 18, 2025 at 1:26 AM
Skeletal reconstruction of Zavacephale rinpoche holotype MPC-D 100/1209.
Scale bars are 1 m and 5 cm x 5 cm.
Scale bars are 1 m and 5 cm x 5 cm.
A new neosuchian crocodyliform from the Lower Cretaceous (Aptian–Albian) Holly Creek Formation of southwest Arkansas and its implications on the relationships of Goniopholididae: Journal of Vertebrate Paleontology: Vol 0, No 0 - Get Access www.tandfonline.com/doi/full/10....
A new neosuchian crocodyliform from the Lower Cretaceous (Aptian–Albian) Holly Creek Formation of southwest Arkansas and its implications on the relationships of Goniopholididae
A new species of neosuchian crocodyliform, Paarthurnax holliensis gen. et sp. nov., is herein described based on a nearly complete skull from the Lower Cretaceous (Aptian–Albian) Holly Creek Format...
www.tandfonline.com
September 15, 2025 at 4:34 PM
A new neosuchian crocodyliform from the Lower Cretaceous (Aptian–Albian) Holly Creek Formation of southwest Arkansas and its implications on the relationships of Goniopholididae: Journal of Vertebrate Paleontology: Vol 0, No 0 - Get Access www.tandfonline.com/doi/full/10....
Further along the coast to the east there’s some nice Albian sandstone and marl, sandwiched between Cenomanian and Aptian strata as part of a big syncline.
Lovely sedimentary structures and some cute trace fossils - mostly Thalassinoides.
#fossilfriday
Lovely sedimentary structures and some cute trace fossils - mostly Thalassinoides.
#fossilfriday
September 5, 2025 at 4:29 PM
Further along the coast to the east there’s some nice Albian sandstone and marl, sandwiched between Cenomanian and Aptian strata as part of a big syncline.
Lovely sedimentary structures and some cute trace fossils - mostly Thalassinoides.
#fossilfriday
Lovely sedimentary structures and some cute trace fossils - mostly Thalassinoides.
#fossilfriday
First report of neosuchian remains in Aptian–Albian marine deposits of southeastern France🔓
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
First report of neosuchian remains in Aptian–Albian marine deposits of southeastern France
The European fossil record of crocodylomorphs during the Cretaceous is indubitably skewed towards the lowermost and uppermost strata. Neosuchian remai…
www.sciencedirect.com
July 24, 2025 at 4:51 PM
First report of neosuchian remains in Aptian–Albian marine deposits of southeastern France🔓
www.sciencedirect.com/science/arti...
www.sciencedirect.com/science/arti...
d'Orbigny erected the Toarcian, Callovian, Oxfordian, Kimmeridgian, Aptian, Albian & Cenomanian stages; each defined by fossils with upper & lower discordance (unconformities) caused by upheaval, with rocks between deposited by transgression. - i.e. sequence stratigraphy. Genuis! shorturl.at/9ln4p
June 30, 2025 at 7:47 PM
d'Orbigny erected the Toarcian, Callovian, Oxfordian, Kimmeridgian, Aptian, Albian & Cenomanian stages; each defined by fossils with upper & lower discordance (unconformities) caused by upheaval, with rocks between deposited by transgression. - i.e. sequence stratigraphy. Genuis! shorturl.at/9ln4p
d'Orbigny erected the Toarcian, Callovian, Oxfordian, Kimmeridgian, Aptian, Albian & Cenomanian stages; each defined by fossils with upper & lower discordance (unconformities) caused by upheaval, with rocks between deposited by transgression. - i.e. sequence stratigraphy. Genuis! shorturl.at/9ln4p
The d'Orbigny Collection - IUGS
shorturl.at
June 30, 2025 at 7:45 PM
d'Orbigny erected the Toarcian, Callovian, Oxfordian, Kimmeridgian, Aptian, Albian & Cenomanian stages; each defined by fossils with upper & lower discordance (unconformities) caused by upheaval, with rocks between deposited by transgression. - i.e. sequence stratigraphy. Genuis! shorturl.at/9ln4p
What's also cool, tho less tied to Sissokosuchus itself, is the geographic interpretation of the Continental Intercalaire of Mali. In short, its proposed that these sediments date to the Aptian to Albian and might be the downriver section of a larger west African river system
June 27, 2025 at 5:46 PM
What's also cool, tho less tied to Sissokosuchus itself, is the geographic interpretation of the Continental Intercalaire of Mali. In short, its proposed that these sediments date to the Aptian to Albian and might be the downriver section of a larger west African river system
"Our work corroborates hypotheses indicating westward paleoflow of stratigraphically correlative Aptian–Albian fluvial strata in #Niger (that preserve similar taxa) into #Mali."
Eric Wilberg, Robert V. Hill, Thomas R. Pascucci, Eric M. Roberts, Mamadou L. Bouaré, Maureen A. O’Leary
Eric Wilberg, Robert V. Hill, Thomas R. Pascucci, Eric M. Roberts, Mamadou L. Bouaré, Maureen A. O’Leary
June 23, 2025 at 10:23 PM
A wide blade carcharodontosaurid tooth from the Early Cretaceous (Aptian-Albian) Itapecuru Formation of the Maranhão State, northeastern Brazil.
www.sciencedirect.com/science/arti...
🧪 ⚒️ #Paleobio #Geology
www.sciencedirect.com/science/arti...
🧪 ⚒️ #Paleobio #Geology
May 23, 2025 at 11:59 AM
A wide blade carcharodontosaurid tooth from the Early Cretaceous (Aptian-Albian) Itapecuru Formation of the Maranhão State, northeastern Brazil.
www.sciencedirect.com/science/arti...
🧪 ⚒️ #Paleobio #Geology
www.sciencedirect.com/science/arti...
🧪 ⚒️ #Paleobio #Geology
Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia
www.tandfonline.com/doi/full/10....
www.tandfonline.com/doi/full/10....
May 13, 2025 at 11:54 PM
Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia
www.tandfonline.com/doi/full/10....
www.tandfonline.com/doi/full/10....
New palynological study looks at Early Cretaceous palaeoenvironments in Victoria. There’s a big change in vegetation between the Aptian and Albian. Includes some really nice art too. www.tandfonline.com/doi/full/10....
Cool-temperate riparian floras in the Early Cretaceous rift valley of Victoria, Australia
To better understand the riparian floras associated with Early Cretaceous vertebrate localities in Victoria, Australia, we studied 291 palynological samples from 48 sites in the Otway and Gippsland...
www.tandfonline.com
May 8, 2025 at 10:17 PM
New palynological study looks at Early Cretaceous palaeoenvironments in Victoria. There’s a big change in vegetation between the Aptian and Albian. Includes some really nice art too. www.tandfonline.com/doi/full/10....
Full article: Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia www.tandfonline.com/doi/full/10....
Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia
The Lower Cretaceous (Aptian – Albian) Eumeralla Formation in Victoria’s Otway Basin offers a window into the dinosaur diversity at higher latitudes of the southern hemisphere during the initial st...
www.tandfonline.com
May 7, 2025 at 3:51 PM
Full article: Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia www.tandfonline.com/doi/full/10....
Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia www.tandfonline.com/doi/full/10....
May 7, 2025 at 10:59 PM
Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia www.tandfonline.com/doi/full/10....
Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia www.tandfonline.com/doi/full/10....
May 7, 2025 at 10:57 PM
Re-investigation of the mid-Cretaceous ‘Skenes Creek’ dinosaur tracksite and discovery of distinct tracks at Browns Creek within the Lower Cretaceous (Aptian–Albian) Eumeralla Formation, Victoria, Australia www.tandfonline.com/doi/full/10....
Just off the press, our work on the opening of the Equatorial Atlantic Gateway! 🌎🌍 #marinegateways #equatorialAtlantic #aptian-albian #sedimentwaves #biostratigraphy
Delighted to see this new paper led by my recent postdoc, Debora Duarte, published in Global and Planetary Change!
#sedimentwaves, #contourites, #gateways
www.sciencedirect.com/science/arti...
#sedimentwaves, #contourites, #gateways
www.sciencedirect.com/science/arti...
Early Cretaceous deep-water bedforms west of the Guinea Plateau revise the opening history of the Equatorial Atlantic Gateway
The Equatorial Atlantic Gateway (EAG) was critical to Earth's climatic and oceanographic evolution during the Mesozoic, yet its early opening history …
www.sciencedirect.com
March 7, 2025 at 12:27 PM
Just off the press, our work on the opening of the Equatorial Atlantic Gateway! 🌎🌍 #marinegateways #equatorialAtlantic #aptian-albian #sedimentwaves #biostratigraphy
evidence that the terrestrial vertebrate fauna of Cretaceous polar Australia was remarkably stable for at least a 10-million-year stretch during the Aptian and Albian stages. (3/3)
February 20, 2025 at 4:51 AM
evidence that the terrestrial vertebrate fauna of Cretaceous polar Australia was remarkably stable for at least a 10-million-year stretch during the Aptian and Albian stages. (3/3)
Silicon-Based Life
Diatoms are "recent"? 🤯
"First recorded occurrences of diatoms are from the Jurassic, however, these are uncertain and the earliest recorded well preserved diatoms are centric forms from the Aptian-Albian stages of the Cretaceous."
🧪🧬🧵1/n
www.ucl.ac.uk/GeolSci/micr....
Diatoms are "recent"? 🤯
"First recorded occurrences of diatoms are from the Jurassic, however, these are uncertain and the earliest recorded well preserved diatoms are centric forms from the Aptian-Albian stages of the Cretaceous."
🧪🧬🧵1/n
www.ucl.ac.uk/GeolSci/micr....
Diatoms
This teaching and learning web-site is intended as an introduction to micropalaeontology. Micropalaeontology is the study of microfossils (any fossil generally less than 1mm in size). This page covers...
www.ucl.ac.uk
January 4, 2025 at 1:35 PM
Silicon-Based Life
Diatoms are "recent"? 🤯
"First recorded occurrences of diatoms are from the Jurassic, however, these are uncertain and the earliest recorded well preserved diatoms are centric forms from the Aptian-Albian stages of the Cretaceous."
🧪🧬🧵1/n
www.ucl.ac.uk/GeolSci/micr....
Diatoms are "recent"? 🤯
"First recorded occurrences of diatoms are from the Jurassic, however, these are uncertain and the earliest recorded well preserved diatoms are centric forms from the Aptian-Albian stages of the Cretaceous."
🧪🧬🧵1/n
www.ucl.ac.uk/GeolSci/micr....
Published in #GJI : "Paleomagnetic inclinations and relative paleointensity variations during the upper Aptian to middle Albian in Sergipe-Alagoas Basin, South Atlantic Ocean (NE Brazil)", Gewehr de Mello et al. academic.oup.com/gji/article/... @royalastrosoc.bsky.social
January 2, 2025 at 1:12 PM
Published in #GJI : "Paleomagnetic inclinations and relative paleointensity variations during the upper Aptian to middle Albian in Sergipe-Alagoas Basin, South Atlantic Ocean (NE Brazil)", Gewehr de Mello et al. academic.oup.com/gji/article/... @royalastrosoc.bsky.social
There really should be a Middle Cretaceous Period, consisting of the Aptian, Albian, and Cenomanian Epochs. Maybe there's some historical reason there isn't, but it seems odd to me. A *lot* happened during those ~ 28 million years.
December 31, 2024 at 3:39 PM
There really should be a Middle Cretaceous Period, consisting of the Aptian, Albian, and Cenomanian Epochs. Maybe there's some historical reason there isn't, but it seems odd to me. A *lot* happened during those ~ 28 million years.
Aptian-Albian-Cenomanian could be quite useful if labeled as such ttbt.
December 31, 2024 at 2:54 PM
Aptian-Albian-Cenomanian could be quite useful if labeled as such ttbt.
#geoubcsic Decapod assemblages from the Aptian-Albian transition of the eastern Maestrat Basin (Iberian Chain). Ossó, A; Charbonnier, S;... GEOLOGICA ACTA 22 [2024] doi.org/10.1344/GeologicaActa2024.22.7
November 25, 2024 at 12:27 PM
#geoubcsic Decapod assemblages from the Aptian-Albian transition of the eastern Maestrat Basin (Iberian Chain). Ossó, A; Charbonnier, S;... GEOLOGICA ACTA 22 [2024] doi.org/10.1344/GeologicaActa2024.22.7