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Showing results for tags 'Maastrichtian'.
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Introducing Hainosaurus boubker, Last of the Great Tylosaurs.
Praefectus posted a topic in Fossil News
The unnamed giant Tylosaur of the Moroccan Phosphates is revealed at last. The great and mighty Hainosaurus is a previously unrecognized macropredator present in the latest Cretaceous (Maastrichtian) of Morocco. https://www.researchgate.net/publication/365437927_First_Record_of_a_Tylosaurine_Mosasaur_from_the_Latest_Cretaceous_Phosphates_of_Morocco Authors: @Praefectus @BrennanThePaleoDude @pachy-pleuro-whatnot-odon Abstract: The latest Cretaceous Phosphates of Morocco preserve the highest biodiversity of mosasaurid squamates anywhere in the world. Intensive sampling over- 15 replies
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Hello all! I visited a small creek not far away from where I live (Vaals, Selzerbeek). This location has late Cretaceous sediments from the Gulpen and Maastricht Formations (Kalksteen van Vijlen, Orsbach Kreide en Kunrader Kalksteen). I think most of the finds are from the Vijlen Kalksteen (Vijlen Chalk). Found some nice late Cretaceous (early Maastrichtian) fossils including some small shark teeth and one fossil gastropod Steinkern/internal mold (I don't know the exact species). The fossils are belemnites (Belemnitella and Belemnella (Pachybelemnella) sp., parts
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- the netherlands
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Dinosaur & Croc Faunal List of the Hell Creek and Lance Formations
Troodon posted a topic in Questions & Answers
Edited (12/31/22) With all of the new discoveries over the past few years there is very little out there that is current or accurate. Here is my view of the Dinosaurian/Crocodilian fauna from the Hell Creek and Lance Formation excluding Avialae. Tyrannosauridae: - Tyrannosaurus rex (Osborn 1905) - Nanotyrannus lancensis (Bakker et al. 1988) - Aublysodon mirandus (Not Valid) Alverezauridae: - Trierarhunchus prairiensis (Fowler et al. 2020) Ornithomimidae: - Struthiomimus sedens? (Marsh 1982) - Ornithomimus velox- 33 replies
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- lance formation
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Unusual Hell Creek Formation fossilized tooth record
Joseph Fossil posted a topic in Questions & Answers
I've recently found a, how do I say...quite unusual Theropod dinosaur tooth from the Late Cretaceous Hell Creek Formation (67-66.0 Million Years ago). The paper, titled The occurrences of vertebrate fossils in the Deadhorse Coulee Member of the Milk River Formation and their implications for provincialism and evolution in the Santonian (Late Cretaceous) of North America by Derek Williams Larson, is a record of theropod teeth from various Late Cretaceous formations in Western North America, and buried on page 244 of the report an apparent megalosauridae tooth (UCMP120305) from the Hell Creek Fo -
Hello all, Most of the belemnite hooks are found in Jurassic sediments (Germany, UK). Does anyone know if Cretaceous belemnite hooks are found? (from the Belemnitellidae family?). I know that in one book about the Cretaceous fossils in Rügen (Germany), belemnite hooks/hooklets are present (forgot the title of the book...). Kind regards, Ruben
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New Late Cretaceous titanosaur sauropod dinosaur egg clutches from lower Narmada valley, India: Palaeobiology and taphonomy (link to PLOS ONE) Franz Bernhard-
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Janavis finalidens: a new 67 mya old bird described from the late cretaceous of Belgium
ziggycardon posted a topic in Fossil News
Came accross this news shared by the NHM Maastricht, another fossil bird has been discribed from the same quarry and layer in which the famous wonderchicken "Asteriornis" was found. This being the Romontbos quarry in Eben-Emael in Belgium (near de border with Maastricht in the Netherlands) which dates to the Late Maastrichtian era (66,7 mya) Here are some links to the news articles (both in english as in dutch) as well as as video. https://www.theguardian.com/science/2022/nov/30/ct-scans-toothed-bird-fossil-jaw-mobile-palate-avian-evolution https://www.bbc.com/news/uk-
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A new Moroccan Tylosaurine here: First Record of a Tylosaurine Mosasaur from the Latest Cretaceous Phosphates of Morocco (scirp.org) The first to be described from Morocco and the latest Maastrichtian ever described. Also the first from such low latitudes. The aythors discuss the relationships of Tylosaurus and Hainosaurus and revalidate Hainosaurus.
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Was found in Hidalgo County NM and the area is from the Maastrichtian epoch. Curious to know more about it.
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- new mexico
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Species level identification obtained from facet count (3-5 prisms labially; ~5 or indistinguishable lingually). See more information in Rempert et al. 2022 - Occurrence of Mosasaurus hoffmannii Mantell, 1829 (Squamata, Mosasauridae) in the Maastrichtian Phosphates of Morocco.
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Hello all, This weekend another fossil hunt in Cretaceous sediments in the Netherlands (late late Campanian, early Maastrichtian, around 72-66 mya (whole late Maastrichtian) and/or (more specific) 70.8-67/70.8-68 mya). The wetter was good, a bit warm and even sometimes humid. Found some typical Cretaceous fossils. Mainly Belemnites from the species Belemnitella sp. and Belemnella (pachybelemnella) sp. Perhaps some B. (pachybelemnella) obtusa (Schulz, 1979) and one fragment of a sea urchin (Echinocorys sp.). Compared to American sites (for example New Jersey), a re
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- cretaceous
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I'll break my trip report to South Dakota into two parts. First will be my visit to the BHI followed by collecting adventure The purpose of going to the BHI was to pick up the Leptoceratops maxilla's I left during my June trip. Pete has been collecting and pulling together specimens to understand and possibly describe this ceratopsid in the Hell Creek. The material he's collected so far appears to be from an adult and is much smaller than L. gracilis. My maxilla's seem to fit the smaller morphotype. In addition, the BHI provided me two sets of replicas of my
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- struthiomimus
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hello guys, can someone help me id these teeth? they are Maastrichtian aged (Maastricht fm.) 1st: Emael Member (near Lava Horizont) 2nd: Nekum Member.
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From the album: My collection in progress
Rhombodus binkhorsti Dames 1881 Location: Morocco Age: 72-66 Mya (Maastrichtian, Upper Cretaceous) Measurements: 1,8x2,8 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Batoidea Order: Rajiformes Family: Rhombodontidae -
From the album: My collection in progress
Cretalamna biauriculata Wanner 1902 Location: Morocco Age: 72-66 Mya (Maastrichtian, Upper Cretaceous) Measurements: 1,8x2,8 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Selachimorpha Order: Lamniformes Family: Otodontidae -
From the album: My collection in progress
Squalicorax pristodontus Agassiz 1843 Location: Morocco Age: 72-66 Mya (Maastrichtian, Upper Cretaceous) Measurements: 2,5x1,5 cm Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchi Superorder: Selachimorpha Order: Lamniformes Family: Anacoracidae -
From the album: Delaware Fossils
Scapanorhyncus texanus (Roemer, 1852) From the Late Cretaceous spoils of the Chesapeake and Delaware Canal, Reedy Point, Delaware Microfossil - 7.6 mm Not the best example of a shark tooth, but a rare find for Reedy Point. Most shark teeth were found further west.-
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- cretaceous
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Hello forum members! With the new Coronavirus raging across the world, I thought it would be nice to start some kind of advent calendar, using my own Squalicorax collection. Everyday I will post one or multiple Squalicorax teeth from one location. Let's see what ends sooner, my collection or the virus outbreak. I will start with the oldest tooth from the Albian substage and end with the teeth from the uppermost substage; the Maastrichtian. The first one is the oldest and also one of the smallest teeth in my collection. Unfortunately it is so sma
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Hello all During my fossil hunt yesterday, I found these two shark teeth right next to each other. I assume both are the same species, I just don't know which one. They were found in the region around Mons/Bergen in Belgium, where both Campanian and Maastrichtian seem to occur. I don't know exactly which layer these came out of, since I found them in a collapsed wall. Sharks seem to be quite rare here, so really happy with them. As found: The second tooth: Thanks all for your help.
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Recently I acquired a bulk lot of Moroccan shark teeth after doing some reading and a lot of sorting. I have more questions than identifications. To keep it simple I stuck with the “square rooted teeth for the first round. I’ve come up with five categories 1 two cusplets - Serratalamna? 2 multiple cusplets but small - ? 3 two cusplets - Cretolamna? 4 two cusplets and no or very weak transversal groove - Otudus? 5 strongly reduced cusplets - ? If other pictures are useful let me know.
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From the album: Prae's Mosasaurs
Carinodens belgicus -
From the album: Prae's Mosasaurs
Tooth of Carinodens belgicus-
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- cretaceous
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@pachy-pleuro-whatnot-odon and I wrote a paper on Mosasaurus hoffmannii fossils from the Moroccan Phosphates. https://www.researchgate.net/publication/357836567_Occurrence_of_Mosasaurus_hoffmannii_Mantell_1829_Squamata_Mosasauridae_in_the_Maastrichtian_Phosphates_of_Morocco https://www.aaps-journal.org/pdf/JPS.C.22.0001.pdf Abstract: Marginal tooth crowns from the hypercarnivorous marine reptile Mosasaurus hoffmannii Mantell, 1829 are reported for the first time from the Late Cretaceous (Maastrichtian) phosphates of Morocco. Fossilized remains of this speci
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- squamata
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From the album: Prae's Mosasaurs
Tooth of Carinodens. -
From the album: Prae's Mosasaurs
Tooth of Carinodens belgicus.-
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- mosasauridae
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