STAY SAFE . COVID-19 . Read More >

Free UK Delivery . Always

Authenticity . Guaranteed 

Mosasauridae - Aquatic Lizardvendor-unknown

Mosasaurus Halisaurus Jaw 2.9ft

£6,962.00 GBP

Halisaurus arambourgi mosasaur jaw and partial vertebrae measuring 2.9ft, including a well-preserved, nearly complete skull and with lower jaws skeleton, and a partial skull that preserves details of the braincase and quadrate. Halisaurus appeared relatively early in the evolutionary history of the mosasaurs, during the Santonian. As such, the genus retains many primitive characteristics, as does the Halisaurinae at large. Both H. platyspondylus and H. arambourgi reached lengths of between 3 and 4 metres (9.8 - 13.1 feet). The length of the dubious H. onchognathus is difficult to tell due to the lack of remains but was likely similar.

As in other halisaurines, the flippers of Halisaurus are poorly differentiated which means that the genus lacked the hydrophalangy of more advanced mosasaurs. That Halisaurus was a relatively poor swimmer is relatively surprising considering its small size, since other small and medium-sized mosasaurs were mostly adept swimmers. The description of Phosphorosaurus ponpetelegans revealed that Phosphorosaurus, another member of the Halisaurinae, was highly specialized to compensate for its lack of hydrophalangy.

Classification and Species: The exact position of Halisaurus within the larger mosasaur family tree has long been considered controversial. The type specimen of H. platyspondylus is not comprehensive and only preserves an angular and a basicranium fragment. Though the specimen does not reveal much about the mosasaur, it was noted by D.A. Russell in his Systematics and Morphology of American Mosasaurs (1967) that the angular resembles that of Platecarpus but is more symmetrically heartshaped in anterior aspect and appears slightly inflated in later profile with a convex anteroventral outline that is continuous with the anteroexternal margin of the articular surface, as in the genus Clidastes. The similarities with both Platecarpus and Clidastes were problematic, as said genera have always been classified in separate subfamilies, the Plioplatecarpinae and Mosasaurinae respectively. Russell referred the genus to the Plioplatecarpinae on the basis of a Platecarpus-like suprastapedial process in specimens referred to H. onchognathus.

Several discoveries throughout the 1980s and 1990s helped shed light on Halisaurus, with more complete specimens of the type species H. platyspondylus being discovered and Phosphorosaurus ortliebi being momentarily reassigned to the genus by Lingham-Soliar (1996).[3] In 2005, the species Halisaurus sternbergii was reassigned to its own genus, Eonatator, along with the description of the new species Halisaurus arambourgi by Nathalie Bardet and colleagues. With the description of Eonatator as a closely related genus to Halisaurus, the two genera were grouped into the new subfamily Halisaurinae, which was then believed to be a sister-group to more advanced mosasaurs.

The recent most major phylogenetic analysis of mosasaurs, conducted by Tiago R. Simões and colleagues in May 2017, recovered Halisaurus and the rest of the Halisaurinae as a sister group to the Mosasaurinae. This would mean that the halisaurines are more closely related to the mosasaurines than the russellosaurines (genera such as Tylosaurus and Plesiopatecarpus) are.

Genus: Mosasaurus. Halisaurus arambourgi.
Age: Late Cretaceous, approximately 86.3 to 66 million years.
Origin: Ouled Bouali, Khourigba, Morocco, North Africa.

Mosasaurus measurements.
Length: 97 cm
Width: 60 cm
Depth: 14 cm

Weight: 48.734 Kg

Mosasaur Halisaurus Scale to man

MOSASAURUS HALISAURUS. 4M / 13.1FT
HOMO SAPIEN. 1.8M / 6FT

- THE FOSSIL STORE ON COVID-19
- HEALTH + SAFETY IS OUR NUMBER 1 PRIORITY

STAY SAFE - Protecting you by protecting us

For THE FOSSIL STORE, the health and wellbeing of our customers and employees are of the utmost importance. In the face of the worldwide implications of COVID-19, we are doing everything we can and taking all the necessary precautions to make sure everybody stays safe in these uncertain and trying times.

As a company serving globally, we are monitoring the situation closely per country. Every decision is made on a day-to-day basis in line with local and international safety guidelines. Please note that the situation is developing rapidly, and the precautions and safety measures taken are therefore subject to change.

To ensure everyone’s wellbeing, updates at THE FOSSIL STORE on COVID-19 can be found in the link below which will be continuously updated in line with current information whilst we continue to fulfil your orders, minimise delays and work to resolve any unforeseen issues which may occur if local and international couriers are impacted.

Please feel welcome to shop online at thefossilstore.com. We continue to deliver to you and are committed to giving you the high-quality experience you are used to. We are able to hold orders during COVID-19 to help secure product investments for your peace of mind.

Let’s work together to protect and care for one another. Thank you for your ongoing support and understanding.
Stay safe everybody.

THE FOSSIL STORE team

For more information on our latest updates you can visit our latest policy activity including the steps taken to protect you by protecting us. 
Read More >

If you need assistance regarding this product, we are here to help. Simply note the product 'TITLE + SKU' number within you enquiry.

Call us: +44 [0] 151 342 1151
Email us: info@thefossilstore.com

 

CONTACT FORM >

Free standard UK delivery - Recorded/Signed-for

All UK orders include free delivery, excluding Ireland, Scotland and the Highlands.

This product is available for worldwide delivery.

A certificate of authenticity is included with this product.

For specific delivery dates please email info@thefossilstore.com or you can use our Contact Form.

Large items require special courier services - please allow time for such deliveries whilst we guarantee a more secure delivery of your order.

Once confirmed you will receive updates from one of our couriers for a door to door service - assigning your order to DPD Precise, Simon Haul Specialists or an alternate courier of our choosing.

Next Day Delivery is subject to availability, determined by the time of your order and product selection.

Please note - UK small orders arrive 3 - 5 business days.
UK large orders arrive 5 - 12 business days.

For Returns please see our Returns Policy.

For delivery pricing - add a product to the Bag and on the Pop-Out Bag select your country and enter your post/zip code.

✓ COVID-19 - UPDATES

- THE FOSSIL STORE ON COVID-19
- HEALTH + SAFETY IS OUR NUMBER 1 PRIORITY

STAY SAFE - Protecting you by protecting us

For THE FOSSIL STORE, the health and wellbeing of our customers and employees are of the utmost importance. In the face of the worldwide implications of COVID-19, we are doing everything we can and taking all the necessary precautions to make sure everybody stays safe in these uncertain and trying times.

As a company serving globally, we are monitoring the situation closely per country. Every decision is made on a day-to-day basis in line with local and international safety guidelines. Please note that the situation is developing rapidly, and the precautions and safety measures taken are therefore subject to change.

To ensure everyone’s wellbeing, updates at THE FOSSIL STORE on COVID-19 can be found in the link below which will be continuously updated in line with current information whilst we continue to fulfil your orders, minimise delays and work to resolve any unforeseen issues which may occur if local and international couriers are impacted.

Please feel welcome to shop online at thefossilstore.com. We continue to deliver to you and are committed to giving you the high-quality experience you are used to. We are able to hold orders during COVID-19 to help secure product investments for your peace of mind.

Let’s work together to protect and care for one another. Thank you for your ongoing support and understanding.
Stay safe everybody.

THE FOSSIL STORE team

For more information on our latest updates you can visit our latest policy activity including the steps taken to protect you by protecting us. 
Read More >

✓ Get In Touch

If you need assistance regarding this product, we are here to help. Simply note the product 'TITLE + SKU' number within you enquiry.

Call us: +44 [0] 151 342 1151
Email us: info@thefossilstore.com

 

CONTACT FORM >

✓ Free UK Delivery

Free standard UK delivery - Recorded/Signed-for

All UK orders include free delivery, excluding Ireland, Scotland and the Highlands.

✓ Worldwide Delivery

This product is available for worldwide delivery.

✓ Authenticity Guaranteed

A certificate of authenticity is included with this product.

✓ Specify Delivery Date

For specific delivery dates please email info@thefossilstore.com or you can use our Contact Form.

Large items require special courier services - please allow time for such deliveries whilst we guarantee a more secure delivery of your order.

Once confirmed you will receive updates from one of our couriers for a door to door service - assigning your order to DPD Precise, Simon Haul Specialists or an alternate courier of our choosing.

Next Day Delivery is subject to availability, determined by the time of your order and product selection.

Please note - UK small orders arrive 3 - 5 business days.
UK large orders arrive 5 - 12 business days.

For Returns please see our Returns Policy.

✓ Delivery Calculator

For delivery pricing - add a product to the Bag and on the Pop-Out Bag select your country and enter your post/zip code.

FREE UK DELIVERY. ALWAYS.

For a seamless experience from start to finish, THE FOSSIL STORE offers free delivery on all U.K. orders.

My bag

0 item(s) in your bag

Subtotal £0.00 GBP

PayPal | Apple Pay | G Pay | Shop Pay available on Checkout.

Secure Checkout Continue shopping

✓ Free UK delivery + worldwide delivery available.

✓ Certificate of authenticity included

Get In Touch

MON - FRI . 10AM - 4PM . BST . Excluding Holidays

info@thefossilstore.com

All SALE Items are considered FINAL SALE and are not eligible for returns or exchange. This includes items purchased during site-wide sales and outsourced products are final sale, and not eligible for return or exchange. For a full description of our policies, please visit the Shipping + Returns page.

Leave a note about your order