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Showing results for tags 'albian'.
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Taxonomy from Fossilworks.org Species diagnosis from Nakamine et al. 2020, p. 20: "Protibia five slight protrusions on the proximal area of ventral ridge, bearing two spines on the distal area of ventral ridge (three in M. cristata). Hindwing RP divided into five branches; one intra-RP crossvein (4rp4-rp5) present." Line drawing of (d) left forewing; (e) right forewing; and (f) left hindwing from Nakamine et al. 2020, p. 21; Scale bar 1 mm. References: Nakamine, H., Yamamoto, S., & Takahashi, Y. (2020). Hidden diversity of small predators: New thorny lacewings
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From the album: Duck Creek Formation
Holaster simplex, Tarrant Co. Albian, Cretaceous Apr, 2023-
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The North American Tyrannosauroidea Species from the Aptian-Santonian Cretaceous
Joseph Fossil posted a topic in General Fossil Discussion
The Tyrannosaur Dinosaurs (Tyrannosauroidea) inhabited North America from 152 Million Years ago during the Late Jurassic era up until 66 Million Years ago during the Late Cretaceous era. https://www.app.pan.pl/article/item/app20110141.html However, there is a relatively large geologic gap between the time of the Late Jurassic to the Santonian-Campanian stages of the Cretaceous (when the the oldest known Tyrannosaurid Lythronax (Late Creteaceous, 81.9-81.5 Million Years ago) emerged) in terms of the number of Tyrannosauroidae confirmed in North America. However, thi -
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Some Say Lightning Doesn't Strike the Same Place Twice...
EPIKLULSXDDDDD posted a topic in Fossil Hunting Trips
Return to the Badlands of North Texas At long last, rain graced the lands of North Texas this past week. For many of us, that meant it was time to finally crawl out of bed and beat the crowd to that one particular site desperately needing a refresh. In my case, I set on my way to explore a newer spot in the Grayson Marl while the ground was still nice and muddy. I'd been to this place once before, but it had already been thoroughly picked over. It's a popular site, but even then, it managed to pull through and produce some fine specimens for me to take home. With that in mind, I su- 9 replies
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From the album: Pawpaw Formation
Cretoxyrhina vraconensis, Tarrant Co. Albian, Cretaceous Dec, 2022 Originally had this down as Leptostyrax macrorhiza, but decided Cretalamna appendiculata was a better match after having a second look (lack of wrinkling on labial surface). Edit: Apologies for changing so much. I did a little more research, and it appears that Cretoxyrhina vraconensis is a much better ID.- 1 comment
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From the album: Pawpaw Formation
Cretacoranina punctata, Tarrant Co. Albian, Cretaceous Apr, 2023 Cretacoranina is a type of "frog crab" which are still around today and are known to bury under the sand with their modified claws. They keep their eyes above the sand and ambush prey. Unlike most other crabs, frog crabs do not have their abdomen tucked beneath their cephalothorax. The frog crab fossil record starts in the Albian which means this specimen is very close to their supposed origin! I actually found the posterior end of this crab a couple of months ago. I knew it was from this species -
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From the album: Duck Creek Formation
Goniophorus scotti, Tarrant Co. Albian, Cretaceous Apr, 2023 Scoped out my first Duck Creek site that wasn't all the way up in Texoma. I was surprised to find it had a micromorph zone complete with pyritic ammonites and this tiny echinoid. Fingers crossed it might have some sharks teeth too.-
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From the album: Texas Albian (Cretaceous)
Tetragramma sp. Albian Texas Found at site #14, dubbed by my step brother and I as the "Anti-wishing well" - but it sure seems like a wishing well to me! It's a tiny site at the base of an ephemeral waterfall revealing comanche peak shales - a lithological feature I was unaware of being possible in the comanche peak until the site's discovery.-
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From the album: Pawpaw Formation
Steorrosia reidi, Tarrant Co. Albian, Cretaceous Jan, 2023 Surprisingly rare amongst my decapod finds. This one was found broken in half. It's my best specimen as of yet. Distinguished by its unique style of granulation on the carapace. -
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From the album: Pawpaw Formation
Acanthaxius carinatus?, Tarrant Co. Albian, Cretaceous Feb, 2023 Fossil mudshrimps of the Pawpaw are special finds and are easily overlooked. This is my first specimen, but it is missing much of the carapace so identification is difficult. -
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From the album: Pawpaw Formation
Squalicorax baharijensis, Tarrant Co. Albian, Cretaceous Feb, 2023 Squalicroax baharijensis on the basis of broad neck and well developed serrations (?). Could be wrong with the serrations. If they are "poorly developed", S. pawpawensis would be the better ID. -
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From the album: Duck Creek Formation
Leptostyrax macrorhiza, Grayson Co. Albian, Cretaceous Jan, 2022 A huge tooth found by my brother from the shores of Texoma. It has a height of 31 mm!-
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From the album: Duck Creek Formation
Cretalamna catoxodon, Grayson Co. Albian, Cretaceous Jan, 2022 The only Cretalamna species I can find described from the Albian is C. bryanti. However, I don't see much resemblance with my specimen. C. catoxodon is found in the Cenomanian and looks similar, but it is possible this tooth may belong to some undescribed species. -
From the album: Pawpaw Formation
Lechites comanchensis, Tarrant Co. Albian, Cretaceous Dec, 2022-
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From the album: Walnut Formation
Ceratostreon texanum, Travis Co. Albian, Cretaceous Sept, 2022 -
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From the album: Walnut Formation
Nerinea sp., Travis Co. Albian, Cretaceous Sept, 2022 -
Late last year I received some micro matrix from @Notidanodon that he collected from the Isle of Wright (UK) out of the Greensand Fm. near Yaverland. This material is Lower Cretaceous, Albian aged. I have picked through much of it and have some questions on what I have found. I am not well versed in the fauna from this area and some internet searching has led me to some suggestions, but I'm hoping Will or some of our more experienced collectors from this area such as @Welsh Wizard, @Yoda, @Bobby Rico, and any others that I cant think of off the top of my head, can set me straight.
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From the album: Pawpaw Formation
Feldmannia wintoni, Tarrant Co. Albian, Cretaceous Dec, 2022 -
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From the album: Pawpaw Formation
Scaphites hilli, Tarrant Co. Albian, Cretaceous Dec, 2022-
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From the album: Pawpaw Formation
Steorrosia aspera, Tarrant Co. Albian, Cretaceous Dec, 2022-
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On the night September 2, 2018, a large fire ripped through the prestigious National Museum of Brazil. By the time it was put out, a plethora of precious artifacts, including many dinosaurs fossils (with still many to this day missing). Of the specimens currently missing since the fire - the Holotype of a small theropod dinosaur from the Albian Cretaceous of Brazil's Santana Formation named Santanaraptor placidus. Santanaraptor (Romualdo Member of the Santana Formation) (Early Albian, Cretaceous period 112.6-109.0 million years ago) Specimen: MN 4802-V (partial skeleton with p
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Articulated Brittle Sea Star and The First Fossil That Looked Back at Me! Pawpaw Formation
EPIKLULSXDDDDD posted a topic in Fossil Hunting Trips
The brief visit to the second half of the Pawpaw exposure turned out to be a huge success. I didn't think it was possible, but the finds got even better! There wasn't much of a story to be had with accessing the site, so I'll keep things brief and jump straight into the finds. Once I relocated the productive greyish layer, I was already gathering various claw bits left and right. Their bright white coloration really makes them pop out from the ground. However, I didn't let this lead me into lowering the thoroughness of my search. I still took a close look at every pebble and under- 16 replies
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From the album: Pawpaw Formation
Engonoceras serpintinum, Tarrant Co. Albian, Cretaceous Dec, 2022 -
Hi TFF, Last week the GF and I went for the holy trio (geological wise ), the turonian, cenomanian and albian. It's simply amazing that in a relatively short stretch of cliffs you can find all three. Driving our way there it seemed like the UK also had some decent weather that day as it was quite visible. We first hit the turonian. On the way there you can find santonian(?) deposits which produce some nice flint urchins. I'm usually looking for big ammonites like lewesiceras or mammites. Only two small examples were found that we did not take home. In
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Last weekend was an extended weekend and good weather forecast, that means a few field trips to the French coast for us The first trip was Friday, we got there early in the morning and planned to hunt the Turonian part of the coast. There was a lot of sand on the beaches so we didn’t find much, but quality is better than quantity and Natalie scored 2! Ptychodus teeth. I only found an ammonite that proved to be incomplete after extracting it :/ and a flint echinoid on the way back to the car. On Monday we tried our luck in the Cenomanian and Albian part of the site. Again lots o
