# Talarurus

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Ankylosaurid dinosaur genus from the Late Cretaceous

Talarurus Temporal range: Late Cretaceous, ~96–89 Ma PreꞒ Ꞓ O S D C P T J K Pg N Frontal view of the mounted skeleton cast in Czech Republic Scientific classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: †Ornithischia Clade: †Thyreophora Clade: †Ankylosauria Family: †Ankylosauridae Subfamily: †Ankylosaurinae Tribe: †Ankylosaurini Genus: †Talarurus Maleev, 1952 Type species †Talarurus plicatospineus Maleev, 1952

***Talarurus*** ([/ˌtæləˈrʊərəs/](https://en.wikipedia.org/wiki/Help:IPA/English) [*TAL-ə-ROOR-əs*](https://en.wikipedia.org/wiki/Help:Pronunciation_respelling_key); meaning "basket tail" or "wicker tail") is a [genus](/source/Genus) of [ankylosaurid](/source/Ankylosaurid) [dinosaur](/source/Dinosaur) that lived in [Asia](/source/Asia) during the [Late Cretaceous](/source/Late_Cretaceous) period, about 96 million to 89 million years ago. The first remains of *Talarurus* were discovered in 1948 and later described by the Russian paleontologist [Evgeny Maleev](/source/Evgeny_Maleev) with the type species *T. plicatospineus*. It is known from multiple yet sparse specimens, making it one of the most well known ankylosaurines, along with *[Pinacosaurus](/source/Pinacosaurus)*. Elements from the specimens consists of various bones from the body; five skulls have been discovered and assigned to the genus, although the first two were very fragmented.

It was a medium-sized, heavily built, ground-dwelling, [quadrupedal](/source/Quadrupedal) [herbivore](/source/Herbivore), that could grow up to 5–6 m (16–20 ft) long and weighed about 454 to 907 kg (1,001 to 2,000 lb), nearly a ton. Like other ankylosaurs it had heavy [armour](/source/Armour_(zoology)) and a [club](/source/Club_(zoology)) on its tail, limiting its speed. *Talarurus* is classified as a member of the [Ankylosauria](/source/Ankylosauria), in the [Ankylosaurinae](/source/Ankylosaurinae), a group of derived ankylosaurs. *Talarurus* is known from the [Bayan Shireh Formation](/source/Bayan_Shireh_Formation), being likely niche partitioned with *[Tsagantegia](/source/Tsagantegia)*, as indicated by its muzzle, which has a rectangular shape specialized for grazing. These represent the oldest known ankylosaurines from Asia, although they are not very closely related to each other. It appears that the closest relative of *Talarurus* was *[Nodocephalosaurus](/source/Nodocephalosaurus)*, an ankylosaurin with similar facial osteoderms.

Most of the skeletal mounts of *Talarurus* are outdated by numerous issues, such as the [ribs](/source/Ribs) pointing downward instead of to the sides, as in most ankylosaurs; an inaccurate skull cast which is mainly based on related species and not on the available skull material; very splayed arms and legs; four digits on the feet, which in reality only had three as indicated by related ankylosaurines. All of these mistakes were made by anatomical misunderstandings since ankylosaurs were not fully known at that time, also, *Talarurus* is not known from a complete skeleton.

## History of discovery

Fossil localities in Mongolia. *Talarurus* is mainly known from Baynshire and Bayshin Tsav localities.

*Talarurus* remains have been discovered in the southeastern parts of the [Gobi Desert](/source/Gobi_Desert) in what is now [Mongolia](/source/Mongolia). The [holotype](/source/Holotype) specimen **PIN 557-91** was discovered in 1948 by the Joint Soviet-Mongolian Paleontological Expedition, and unearthed from sandy, red calcareous [claystone](/source/Claystone) at the Baynshire locality of the [Bayan Shireh Formation](/source/Bayan_Shireh_Formation). *Talarurus* was described and named by the [Russian](/source/Russia) [paleontologist](/source/Paleontologist) [Evgeny Maleev](/source/Evgeny_Maleev) in [1952](/source/1952_in_paleontology). Specimen PIN 557, the original [holotype](/source/Holotype) designated by Maleev, included a fragmentary skull with the posterior part of the skull roof, including the [occipital region](/source/Occipital_region) and the basicranium, numerous vertebrae, several ribs, a scapulocoracoid, a humerus, a radius, an ulna, a nearly complete manus, a partial ilium, an ischium, a femur, a tibia, a fibula, a nearly complete pes, and assorted armor and scutes. The [generic name](/source/Genus#Use), *Talarurus*, is derived from the [Greek](/source/Ancient_Greek) τάλαρος ("tálaros", meaning basket or wicker cage) and οὐρά ("ourā́", meaning rear or tail), in a reference to the club end of the tail which bears resemblance to a wicker basket, and the length of the tail which consists of interlaced bony struts, reminiscent of the weave that is employed when making wicker baskets. The [specific name](/source/Specific_name_(zoology)), "plicatospineus", is derived from the [Latin](/source/Latin) plicātus (meaning folded) and spīneus (meaning thorny or spiny), in a reference to the numerous [osteoderms](/source/Osteoderms) that gave form to its [armor](/source/Armour_(anatomy)) in life.[1] In fact it consisted of fragmentary remains of six individuals discovered at the site.[2] In 1977, [Teresa Maryańska](/source/Teresa_Marya%C5%84ska) chose PIN 557-91, a posterior rear of the skull, as the holotype, given the irregularities of the combined individuals. Also, she renamed *Syrmosaurus disparoserratus* into a second species: *Talarurus disparoserratus*.[3] However, in 1987, this was remade into the separate genus *[Maleevus](/source/Maleevus)*.[2] Elements of all these specimens were combined into a skeletal mount exhibited at the [Orlov Museum](/source/Moscow_Paleontological_Museum). Although very complete, in several aspects the mount is strongly inaccurate.[4][5] The [type](/source/Type_species) and only valid [species](/source/Species) known today is *Talarurus plicatospineus*.[5][6]

Complete view of the mounted skeleton at [MUSE - Science Museum](/source/Museo_delle_Scienze) in [Trento](/source/Trento), featuring unusual traits.

*Talarurus* is now known from at least a dozen individual specimens from various localities. Specimen PIN 3780/1 was collected from terrestrial sediments at the Bayshin-Tsav locality of the Bayan Shireh Formation, by a joint Soviet-Mongolian Paleontological Expedition in 1975 and is now reposited at the Paleontological Institute, Russian Academy of Sciences, in Moscow. This material was assigned to *Talarurus* and is also considered to date from the Turonian stage of the Cretaceous. This specimen consists of the top of a skull and a fragmentary skeleton.[7] Since 2006, in the context of the Korea-Mongolia Joint International Dinosaur Project, numerous additional specimens have been referred to *Talarurus*, found at the Baynshire and Shine Us Khuduk localities. These in 2014 were still undescribed.[4] Another specimen referred to this genus from the Bayshin Tsav locality is composed of an (undescribed) incomplete skull with cranial roof, occipital part and braincase. A second undescribed specimen, collected at the Baga Tarjach locality, consists of a fragment of a [maxilla](/source/Maxilla) with eight teeth. Arbour have listed many of the referred and additional material for *Talarurus*.[4]

Even more additional material has been found. In 2007 during the Korea-Mongolia International Dinosaur Expedition, specimens MPC-D 100/1354, MPC-D 100/1355, and MPC-D 100/1356 were collected from the eastern part of the [Gobi Desert](/source/Gobi_Desert), at the Bayn Shire locality in the [Bayan Shireh Formation](/source/Bayan_Shireh_Formation).[8] These specimens were described on detail in [2019](/source/2019_in_paleontology), consisting of three medium-preserved skulls with additional anatomical and ecological data for *Talarurus*. This new material is now permanently housed at the [Institute of Paleontology and Geology](https://en.wikipedia.org/w/index.php?title=Institute_of_Paleontology_and_Geology&action=edit&redlink=1) of the [Mongolian Academy of Sciences](/source/Mongolian_Academy_of_Sciences).[6]

## Description

Initially, Maleev described *Talarurus* as having four [digits](/source/Digit_(anatomy)) on the foot.[1] However, the foot was not found in articulation; the mounted foot is a composite, and three is the more likely number as all other known ankylosaurids show three toes; earlier reports that *[Pinacosaurus](/source/Pinacosaurus)* also possessed four are incorrect. Another presumed characteristics: the [osteoderms](/source/Osteoderms) had a furrowed ornamentation, making a specially formidable armor, with each plate adorned with additional pleated spines. These were also based on a misunderstanding. These were segments of the halfrings protecting the neck, with their typical low keels. The mount has the further peculiarity that it shows *Talarurus* as built like a [hippopotamus](/source/Hippopotamus), with a barrel-shaped thorax, not with the characteristic ankylosaurid low and wide body type, and the forelimbs are strongly splayed. This was caused by an incorrect positioning of the [ribs](/source/Ribs) as if they were appending instead of sticking out sideways; this mistake also prevented a mounting of the wide upper pelvic elements.[4][5]

### Size and distinguishing traits

Size compared to a 1.8 m tall human.

*Talarurus* was a medium sized ankylosaur, [Thomas Holtz](/source/Thomas_Holtz) and [Gregory S. Paul](/source/Gregory_S._Paul) estimated its length at 5–6 m (16–20 ft), Paul gave a weight of 2 t (2,000 kg),[9] however, Holtz estimated it around 454 to 907 kg (1,001 to 2,000 lb).[10] Like other ankylosaurids, it had a wide [rostrum](/source/Rostrum_(anatomy)) (beak), a formidable osteoderms running across its body, forming an extensive armor, and the famous [tail club](/source/Club_(anatomy)). Its limbs were robust and short, supporting a wide and rounded belly.[1][6] Diagnoses provided by Maleev 1956 and Tumanova 1987, were of limited utility as they largely listed traits shared with many other ankylosaurids. [Arbour](/source/Victoria_Arbour) also noted that the foot in fact had three toes. She established a single [autapomorphy](/source/Autapomorphy): on the frontals, at the middle skull roof, a raised V-shaped region is present. Also she determined that *Talarurus* differed from all known ankylosaurids with the exception of the American *Nodocephalosaurus* in the possession of caputegulae on the frontals and nasals, that are cone-shaped with a circular base.[4] However, according to Parks et al. 2019, *Talarurus* can be distinguished based on diverse rostral characteristics, such as the prominent internarial caputegula, elongated caputegulae, the numerous caputegulae surrounding the nasal area, conical/polygonal-shaped caputegulae, among others.[6]

### Skull

Diagram featuring the most complete skulls: A) MPC-D 100/1354, B) MPC-D 100/1355 and C) MPC-D 100/1356.

The [skull](/source/Skull) of *Talarurus* measured about 30 centimetres (300 mm) in total length.[6] The holotype, PIN 557-91, is based only on a posterior skull roof,[3][6] which features tubercle-like caputegulae (facial osteoderms or armor tiles) that resemble those of *[Nodocephalosaurus](/source/Nodocephalosaurus)*. As noted by Arbour and Currie, the skull roof of PIN 3780/1 appears to have slightly different caputegulae (head osteoderms or armour tiles), and that it was unclear if this represents a taxonomic issue.[5] Nevertheless, all the referred skulls share the same patterns of caputegulae (although little variation among individuals is observable) and therefore referable to the genus.[6] The most complete skull is MPC-D 100/1354. It nicely preserves the [maxillary](/source/Maxilla) rostrum, which is broad and semi-rectangular in shape and fused, no [teeth](/source/Teeth) are found in this zone; probably useful on flat surfaces. As expected, the caputegulae are poligon to tubercle-shaped, with some being present on the nasal area. Each maxilla preserves 23 [alveoli](/source/Dental_alveolus), however, the teeth were not preserved. Most of the caputegulae present in the top of the head are hexagonal in shape, in the holotype PIN 557-91 some are triangular. The [orbitals](/source/Orbit_(anatomy)) are strongly armored with some osteoderms behind them. In MPC-D 100/1355 and MPC-D 100/1356 the [squamosal](/source/Squamosal_bone) and [quadratojugal](/source/Quadratojugal_bone) [horns](/source/Horn_(anatomy)) are thick and triangular, with the squamosals being more rounded. Usually, the lower jaw remains of *Talarurus* do not preserve, however, MPC-D 100/1355 was found in association with a right [dentary](/source/Dentary), very fragmented though.[6]

### Postcranial skeleton

[Life restoration](/source/Paleoart)

Most of the postcranial remains are known from fragmentary individuals. Based on the PIN 557 specimens, the [ribs](/source/Ribs) are strongly curved and thickened, having a length ranging between 50 and 100 cm (500 and 1,000 mm). The vertebral area is partially missing, preserving some [cervicals](/source/Cervical_vertebrae), [dorsals](/source/Thoracic_vertebrae), [caudals](/source/Glossary_of_dinosaur_anatomy#caudals) and the [sacrum](/source/Sacrum). The cervical vertebrae are amphicoelous (concave on both sides) with thickened [centra](/source/Glossary_of_dinosaur_anatomy#centrum) (body), the [neural arches](/source/Vertebra#Structure) are slightly higher. The dorsals have high, wide centra, and they are also amphicoelous with very elongated and robustly built neural arches; some are broken. More complete than the previous sections, the sacrum consists of 4 [presacrals](/source/Lumbar_vertebrae), 4 [sacrals](/source/Glossary_of_dinosaur_anatomy#S), and the first caudal vertebra, these vertebrae are fused together, with some ribs attached. Their size gradually increases from backward to forwards. Some isolated caudal vertebrae are present, they seem to indicate that the tail consisted of approximately 25 to 30 caudals. The anteriormost caudals have somewhat elongated neural arches and centra, the [chevrons](/source/Chevron_(anatomy)) are fused and triangle-shaped. In contrast, the posteriormost caudals have very flattened chevrons and neural arches.[1][11] Due to the partial preservation of the specimens, the exact [osteoderm](/source/Osteoderm) arrangement is unknown, however, some have been unearthed. The preserved osteoderms are very sparse, consisting of some cervical halfrings and spine-shaped body osteoderms. The osteoderms are strongly robust, most spine-shaped osteoderms measured 15 cm (150 mm) in height.[1][11] MPC-D 100/1355 was found in association with a partial halfring, as well as other body elements.[6]

Only the left [manus](/source/Manus_(anatomy)) is preserved, it is virtually complete preserving five [digits](/source/Digit_(anatomy)), only lacking some [unguals](/source/Unguals) and [phalanges](/source/Phalanges). The preserved left [pes](/source/Pes_(anatomy)) is unique; it was described as having four digits,[1][11] this statement however, was proved to be a product of the initial skeleton mount and three digits is more accurate/likely, as seen in related ankylosaurines.[5] In general terms, both manus and pes [metatarsals](/source/Metatarsals) are strongly robust and stocky. The [shoulder girdle](/source/Shoulder_girdle) is represented by a [scapulocoracoid](/source/Scapulocoracoid) that measures about 60 cm (600 mm) long, [humerus](/source/Humerus), [radius](/source/Radius_(bone)) and [ulna](/source/Ulna), these elements are very robust compared to other postcrania and they pertain to the left arm. The left scapulocoracoid is very robust with a well developed insertion for the humerus ([glenoid](/source/Glenoid_cavity)), although the scapular blade is somewhat shortened in length. The humerus is very wide at the ends and thickened measuring 33.5 cm (335 mm) long; it shows some resemblance to that of *[Ankylosaurus](/source/Ankylosaurus)*. Although fragmentary, the [pelvic girdle](/source/Pelvic_girdle) is represented by a partial and flattened [ilium](/source/Ilium_(bone)) with the [ischium](/source/Ischium). Hindlimb elements include the right [femur](/source/Femur) and left [tibia](/source/Tibia). The preserved femur is straight and strongly robust, the [greater trochanter](/source/Greater_trochanter) is fused with the [lesser trochanter](/source/Lesser_trochanter); it measures 47 cm (470 mm) long. The tibia however, is more shortened but greatly wide, it has a total length of 29.8 cm (298 mm). In addition, a [fibula](/source/Fibula) was also preserved, it has a length of 26.7 cm (267 mm). Overall, the fibula is more straight and thin compared to the femur and tibia, its distal end is more wide than the proximal end.[1][11]

## Classification

Ankylosaurid phylogenetic relations are hard to determine because many taxa are only partially known, the exact armour configuration has rarely been preserved, fused osteoderms obscure many details of the skull and the Ankylosauridae are conservative in their postcranial skeleton, showing little variation in their vertebrae, pelves and limbs. Previously it was assumed that as one of the oldest known ankylosaurids, *Talarurus* possessed some basal characters that are shared with [nodosaurids](/source/Nodosaurids) but were later lost in more advanced ankylosaurs, such as the presence of four toes. However, the presumed "primitive" traits proved to be largely artefacts of the initial skeletal restoration. Recent phylogenetic analysis provides evidence for an assignment of *Talarurus* to the [Ankylosaurinae](/source/Ankylosaurinae), a derived ankylosaurid group. This can be reconciled with its relatively old geological age by the possibility that the Ankylosauridae as a whole appeared much earlier during the [Early Jurassic](/source/Early_Jurassic), which must have been true if they were the [sister group](/source/Sister_group) of the Nodosauridae in the sense proposed by Coombs in 1978; i.e. if all polacanthines were nodosaurids.[12][5]

*Talarurus* was assigned to the [Syrmosauridae](/source/Syrmosauridae) (now known as Ankylosauridae) by Maleev in its original description in 1952.[1] Walter Preston Coombs suggested that it was the same dinosaur as *[Euoplocephalus](/source/Euoplocephalus)* although subsequent study did not support this assertion.[12] Maryańska demonstrated that it differed from *Euoplocephalus*, citing the shape of the skull, the morphology of the palate, and the presence of four pedal digits.[3] Vickaryous et al. 2004 note the presence of two distinct ankylosaurid [clades](/source/Clade) during the Late Cretaceous, one consisting of North American [taxa](/source/Taxon) and the other restricted to Asian taxa.[13] However, Arbour in 2014 recovered trees in which *Talarurus* was more closely related to North-American forms than to Asian ankylosaurids. In some of these *Talarurus* was the [sister species](/source/Sister_species) of *Nodocephalosaurus*.[4]

Comparison between the skull of *Euoplocephalus* and other North American ankylosaur taxa. Note the presence of *Nodocephalosaurus*, the closest relative of *Talarurus*.

Ankylosaurinae Crichtonpelta Tsagantegia Zhejiangosaurus Pinacosaurus Saichania Tarchia Zaraapelta Ankylosaurini Dyoplosaurus Talarurus Nodocephalosaurus Ankylosaurus Anodontosaurus Euoplocephalus Scolosaurus Ziapelta

## Paleobiology

The 2007 specimen skulls have brought new insights into the neurocranial capacities and dietary habits of *Talarurus*, specifically the specimen MPC-D 100/1354, which is a well-preserved, almost complete cranium. MPC-D 100/1354 was described in extensive detail along with a very complete skull of *[Tarchia](/source/Tarchia)* by Paulina-Carabajal et al. 2017. They noted that [ankylosaurids](/source/Ankylosaurids) had well-developed [gaze stabilization](/source/Emission_theory_(vision)) and [auditive senses](/source/Hearing), differing from [nodosaurids](/source/Nodosaurids), by examining the [endocranial](/source/Endocranium) region of the selected specimens. The presence of the [flocculus](/source/Flocculus_(cerebellar)) was first reported in *Talarurus* by Maryańska[3] and later in other related ankylosaurids, however, this lobe seems to be absent or reduced in nodosaurids. The flocculus is relatively large on most ankylosaurids. Another neuroanatomical character is the elongated [lagena](/source/Lagena_(anatomy)), which is prominent in *[Euoplocephalus](/source/Euoplocephalus)*, *Tarchia* and *Talarurus*. This anatomical feature indicates that ankylosaurids had a large range of [sound perception](/source/Psychoacoustics), especially for [low frequencies](/source/Low_frequency).[8] In addition to these findings, the preserved [rostrum](/source/Beak) in MPC-D 100/1354 is broad, almost rectangular in shape and somewhat stocky. The wide rostrum of *Talarurus* probably worked with efficiency on low vegetation at flat terrain. Evidence seems to indicate that *Talarurus* had a grazer [feeding-method](/source/Herbivore).[6]

## Paleoenvironment

Life restoration of a *Talarurus* being preyed by an *[Achillobator](/source/Achillobator)* pack.

The fossil remains of *Talarurus* have been found in the sediments of [Bayan Shireh Formation](/source/Bayan_Shireh_Formation), which are thought to date from the [Cenomanian](/source/Cenomanian) to [Santonian](/source/Santonian) [stages](/source/Stage_(stratigraphy)) of the [Late Cretaceous](/source/Late_Cretaceous) period, about 96 million to 89 million years ago.[14] According to Park et al. 2019, *Talarurus* filled the [niche](/source/Ecological_niche) of a [grazer](/source/Grazing_(behaviour)) herbivore, whereas *[Tsagantegia](/source/Tsagantegia)*, another ankylosaurid from the formation, filled the niche of a [browser](/source/Browsing_(herbivory)) herbivore. For instance, *Talarurus* had a broad and rectangular snout (or beak), useful for low vegetation, while the one in *Tsagantegia* is more elongated and shovel-shaped, useful for high vegetation. In order to illustrate this differentiation strategy, they compared the ankylosaurids to the extant African [white](/source/White_rhinoceros) and [black](/source/Black_rhinoceros) rhinoceros: the white rhinoceros is equipped with a broad and rectangular snout, specialized for grazing. The black rhinoceros in the other hand, has a pointed snout for browsing. With these anatomical features and example, it is clear that these taxa were [niche partitioned](/source/Niche_differentiation).[6] Another case of niche partitioning can be observed on the [therizinosaurids](/source/Therizinosaurids) *Erlikosaurus* and *Segnosaurus*, taxa that were also discovered in the formation.[15]

*Talarurus* compared to the [Dinosauria](/source/Dinosauria) from the Bayan Shireh Formation (*Talarurus* in light red, sixth from right).

Found in Late Cretaceous localities such as Baynshire and Bayshin Tsav,[16] taxa that were contemporaneous with *Talarurus* in the Upper Bayan Shireh included a diverse dinosaur fauna, such as the tyrannosauroid *[Khankhuuluu](/source/Khankhuuluu)*,[17] the large dromaeosaurid *[Achillobator](/source/Achillobator)*,[18] the therizinosaurids *[Erlikosaurus](/source/Erlikosaurus)*[19] and *[Segnosaurus](/source/Segnosaurus)*,[19] the ornithomimosaur *[Garudimimus](/source/Garudimimus)*,[20] the small and likely immature ceratopsid *[Graciliceratops](/source/Graciliceratops)*,[21] the small hadrosauroid *[Gobihadros](/source/Gobihadros)*,[16] and its ecological counterpart, *[Tsagantegia](/source/Tsagantegia)*.[22] Based on the [caliche](/source/Caliche), [fluvial](/source/Fluvial) and [lacustrine](/source/Lacustrine) sedimentation, the Bayan Shireh Formation was a large [semiarid](/source/Semiarid) terrain with [meanders](/source/Meanders) and [lakes](/source/Lakes),[23][24] along with the strong presence of [angiosperm](/source/Angiosperm) and [gymnosperm](/source/Gymnosperm) plants all over the zone.[25][26] According to some [biostratigraphic](/source/Biostratigraphic) occurrences within Asiatic formations, there was a likely correlation between the [Iren Dabasu Formation](/source/Iren_Dabasu_Formation) and the Bayan Shireh Formation.[27][28]

## See also

- [Dinosaurs portal](https://en.wikipedia.org/wiki/Portal:Dinosaurs)

- [Timeline of ankylosaur research](/source/Timeline_of_ankylosaur_research)

## References

1. ^ [***a***](#cite_ref-Maleev1952_1-0) [***b***](#cite_ref-Maleev1952_1-1) [***c***](#cite_ref-Maleev1952_1-2) [***d***](#cite_ref-Maleev1952_1-3) [***e***](#cite_ref-Maleev1952_1-4) [***f***](#cite_ref-Maleev1952_1-5) [***g***](#cite_ref-Maleev1952_1-6) [***h***](#cite_ref-Maleev1952_1-7) Maleev, E. A. (1952). ["Noviy ankilosavr is verchnego mela Mongolii"](https://paleoglot.org/files/Maleev%2052tr.pdf) [A new ankylosaur from the Upper Cretaceous of Mongolia] (PDF). *Doklady Akademii Nauk SSSR* (in Russian). **87** (2): 273–276.

1. ^ [***a***](#cite_ref-Tumanova1987_2-0) [***b***](#cite_ref-Tumanova1987_2-1) Tumanova, T. A. (1987). ["The armored dinosaurs of Mongolia"](https://paleoglot.org/files/Tumanova%2087tr.pdf) (PDF). *The Joint Soviet-Mongolian Paleontological Expedition Transaction* (in Russian). **32**: 1–76.

1. ^ [***a***](#cite_ref-Maryańska1977_3-0) [***b***](#cite_ref-Maryańska1977_3-1) [***c***](#cite_ref-Maryańska1977_3-2) [***d***](#cite_ref-Maryańska1977_3-3) Maryańska, T. (1977). ["Ankylosauridae (Dinosauria) from Mongolia"](https://web.archive.org/web/20200712160519/http://www.palaeontologia.pan.pl/Archive/1977-37_85-151_19-36.pdf) (PDF). *Palaeontologia Polonica*. **37**: 85–151. Archived from [the original](http://palaeontologia.pan.pl/Archive/1977-37_85-151_19-36.pdf) (PDF) on 2020-07-12. Retrieved 2020-03-09.

1. ^ [***a***](#cite_ref-Arbour2014_4-0) [***b***](#cite_ref-Arbour2014_4-1) [***c***](#cite_ref-Arbour2014_4-2) [***d***](#cite_ref-Arbour2014_4-3) [***e***](#cite_ref-Arbour2014_4-4) [***f***](#cite_ref-Arbour2014_4-5) Arbour, V. M. (2014). [*Systematics, evolution, and biogeography of the ankylosaurid dinosaurs*](https://era.library.ualberta.ca/items/cd5b999b-5995-4aeb-b630-57a36f317abc/view/0b3a4c2c-dd93-4282-bd0c-8b40274142ff/Arbour_Victoria_Spring2014.pdf) (PDF) (PhD Thesis). University of Alberta. p. 265.

1. ^ [***a***](#cite_ref-Arbour2015_5-0) [***b***](#cite_ref-Arbour2015_5-1) [***c***](#cite_ref-Arbour2015_5-2) [***d***](#cite_ref-Arbour2015_5-3) [***e***](#cite_ref-Arbour2015_5-4) [***f***](#cite_ref-Arbour2015_5-5) Arbour, V. M.; Currie, P. J. (2015). "Systematics, phylogeny and palaeobiogeography of the ankylosaurid dinosaurs". *Journal of Systematic Palaeontology*. **14** (5): 385–444. [Bibcode](/source/Bibcode_(identifier)):[2016JSPal..14..385A](https://ui.adsabs.harvard.edu/abs/2016JSPal..14..385A). [doi](/source/Doi_(identifier)):[10.1080/14772019.2015.1059985](https://doi.org/10.1080%2F14772019.2015.1059985). [S2CID](/source/S2CID_(identifier)) [214625754](https://api.semanticscholar.org/CorpusID:214625754).

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## External links

- Media related to [*Talarurus*](https://commons.wikimedia.org/wiki/Category:Talarurus) at Wikimedia Commons

v t e Ankylosauria Kingdom: Animalia Phylum: Chordata Clade: Dinosauria Clade: Ornithischia Clade: Thyreophora Avemetatarsalia see Avemetatarsalia Ornithischia see Ornithischia Ankylosauria see below↓ Ankylosauria Ankylosauria Cryptosaurus Dracopelta Priodontognathus Sarcolestes Serendipaceratops? Spicomellus Stegosaurides? Tianchisaurus Vectipelta Parankylosauria? Antarctopelta Kunbarrasaurus Minmi Patagopelta Stegouros Euankylosauria Nodosauridae Acanthopholis Anoplosaurus Dongyangopelta Gargoyleosaurus? Gastonia? Glyptodontopelta Horshamosaurus Hylaeosaurus? Invictarx Mymoorapelta? Polacanthoides? Priconodon? Propanoplosaurus Rhadinosaurus Sauroplites Polacanthinae Gargoyleosaurus? Gastonia? Hoplitosaurus Peloroplites? Polacanthus Taohelong? Nodosaurinae Acantholipan Ahshislepelta? Borealopelta Niobrarasaurus Nodosaurus Peloroplites? Sauropelta Silvisaurus Tatankacephalus Panoplosaurini Animantarx Denversaurus Edmontonia Panoplosaurus Texasetes Struthiosaurini Europelta Hungarosaurus Pawpawsaurus Stegopelta Struthiosaurus Ankylosauridae Ahshislepelta? Aletopelta? Cedarpelta Chuanqilong Huaxiazhoulong Hylaeosaurus? Liaoningosaurus Zhejiangosaurus Shamosaurinae Gobisaurus Shamosaurus Zhongyuansaurus? Ankylosaurinae Bissektipelta Crichtonpelta Crichtonsaurus Datai Eopinacosaurus Jinyunpelta Minotaurasaurus Pinacosaurus Saichania Shanxia? Tarchia Tianzhenosaurus? Tsagantegia Zaraapelta Ankylosaurini Akainacephalus Ankylosaurus Anodontosaurus Dyoplosaurus Euoplocephalus Nodocephalosaurus Oohkotokia Platypelta Scolosaurus Talarurus Ziapelta Zuul See also: Timeline Category

Taxon identifiers Talarurus Wikidata: Q131940 Wikispecies: Talarurus EoL: 4530861 GBIF: 4823331 IRMNG: 1038133 Open Tree of Life: 4946556 Paleobiology Database: 38835

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Adapted from the Wikipedia article [Talarurus](https://en.wikipedia.org/wiki/Talarurus) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Talarurus?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.