Lambeosaurus — The Echoing Crest

Three low notes roll across the water, each answered farther down the valley. A crest rises above the mist, high and broad as the blade of a ceremonial axe. Beneath it moves a great beaked head, followed by a deep chest and the heavy shoulders of an immense dinosaur. Another call sounds from the far bank, nearer than the first. The Lambeosaurus has stopped feeding and is listening for something the travellers have not yet heard.
At a Glance
| Nature | Huge hollow-crested hadrosaurid animal |
|---|---|
| Challenge | D&D 2024: 5; D&D 2014: 5; Pathfinder 1e: 6; D&D 3.5e: 6 |
| Alignment | Unaligned or neutral; wary and defensive without malice |
| Appearance | Broad plant-cropping beak, muscular body, long tail and tall hatchet-shaped cranial crest enclosing nasal passages |
| Habitat | Open river valleys, wooded floodplains and reed beds in the Old-Earth Wilds |
| Behaviour | Steady feeding, low resonant calls, watchful pauses and rapid withdrawal when endangered |
| Threat | Heavy tail strikes and the crushing movement of alarmed adults and young |
| Signs | Large three-toed tracks, clipped vegetation, reed beds flattened into paths and answering calls over water |
Lambeosaurus Statistics
Lambeosaurus — D&D 2024
Huge Beast, Unaligned
AC 15 (Natural Armor) Initiative +0 (10)
HP 115 (10d12 + 50)
Speed 40 ft.
| Ability | STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|---|
| Score | 22 | 10 | 20 | 2 | 14 | 8 |
| Mod. | +6 | +0 | +5 | −4 | +2 | −1 |
| Save | +6 | +0 | +8 | −4 | +5 | −1 |
Saving Throws Constitution +8, Wisdom +5
Skills Perception +5
Senses Passive Perception 15
Languages None
CR 5 (XP 1,800; PB +3)
Traits
Hollow-Crest Call. Its hollow crest modifies the Lambeosaurus’s deep voice. The call can be heard across a quiet valley and is recognised as an alarm by familiar animals of its kind. It does not deal Thunder damage or cause Deafness, the Frightened condition, or any other supernatural effect.
Watchful Company. The Lambeosaurus has Advantage on Wisdom (Perception) checks to detect approaching creatures while another Lambeosaurus is within 30 feet of it.
Actions
Multiattack. The Lambeosaurus makes one Tail Strike attack and one Shoulder Shove attack.
Tail Strike. Melee Attack Roll: +9, reach 15 ft. Hit: 19 (3d8 + 6) Bludgeoning damage. A Large or smaller target must succeed on a DC 17 Strength saving throw or have the Prone condition.
Shoulder Shove. Melee Attack Roll: +9, reach 5 ft. Hit: 15 (2d8 + 6) Bludgeoning damage.
Stampede (Recharge 5–6). The Lambeosaurus moves up to 20 feet straight ahead through the spaces of Large or smaller creatures. Each creature whose space it enters makes a DC 17 Dexterity saving throw, taking 19 (3d8 + 6) Bludgeoning damage and having the Prone condition on a failure, or taking half the damage on a success. A creature is affected once per use, and the Lambeosaurus can’t finish its movement in an occupied space.
Reactions
Answer the Alarm. When another Lambeosaurus within 30 feet moves away from an enemy this Lambeosaurus can see, this Lambeosaurus moves up to 10 feet to an unoccupied space away from that enemy without provoking an Opportunity Attack from it.
Lambeosaurus — D&D 2014
Huge beast, unaligned
Armor Class 15 (natural armor)
Hit Points 115 (10d12 + 50)
Speed 40 ft.
| STR | DEX | CON | INT | WIS | CHA |
|---|---|---|---|---|---|
| 22 (+6) | 10 (+0) | 20 (+5) | 2 (−4) | 14 (+2) | 8 (−1) |
Saving Throws Con +8, Wis +5
Skills Perception +5
Senses passive Perception 15
Languages —
Challenge 5 (1,800 XP)
Traits
Hollow-Crest Call. Its deep resonating call may alert others of its kind across open ground. The call does not deal thunder damage, deafen listeners, or impose a magical condition.
Watchful Company. The Lambeosaurus has advantage on Wisdom (Perception) checks made to notice approaching creatures while another Lambeosaurus is within 30 feet of it.
Actions
Multiattack. The Lambeosaurus makes one tail strike attack and one shoulder shove attack.
Tail Strike. Melee Weapon Attack: +9 to hit, reach 15 ft., one target. Hit: 19 (3d8 + 6) bludgeoning damage. A Large or smaller target must succeed on a DC 17 Strength saving throw or be knocked prone.
Shoulder Shove. Melee Weapon Attack: +9 to hit, reach 5 ft., one target. Hit: 15 (2d8 + 6) bludgeoning damage.
Stampede (Recharge 5–6). The Lambeosaurus moves up to 20 feet in a straight line through the spaces of Large or smaller creatures. Each affected creature makes a DC 17 Dexterity saving throw, taking 19 (3d8 + 6) bludgeoning damage and falling prone on a failure, or taking half damage on a success. Each creature is affected only once per use; the Lambeosaurus can’t finish the movement in an occupied space.
Reactions
Answer the Alarm. When another Lambeosaurus within 30 feet moves away from an enemy this Lambeosaurus can see, the Lambeosaurus moves 10 feet to an unoccupied space away from that enemy without provoking an opportunity attack from it.
Lambeosaurus — Pathfinder 1e
Lambeosaurus CR 6 (XP 2,400)
N Huge animal
Init +0; Senses low-light vision, scent; Perception +14
Defense
AC 17, touch 8, flat-footed 17 (−2 size, +9 natural)
hp 105 (10d8+50 plus Toughness)
Fort +14, Ref +7, Will +5
Offense
Speed 40 ft.
Melee tail slap +12 (2d8+10)
Space 15 ft.; Reach 10 ft. (15 ft. with tail slap)
Special Attacks trample (2d8+10, Reflex DC 22 half)
Statistics
Str 24, Dex 10, Con 20, Int 2, Wis 14, Cha 8
Base Atk +7; CMB +16; CMD 26
Feats Alertness, Great Fortitude, Power Attack, Run, Toughness
Skills Perception +14, Swim +13
Languages —
Ecology
Environment temperate and warm floodplains, wetland margins and wooded river valleys
Organization solitary, pair or loose gathering (6–24)
Treasure none
Special Abilities
Trample (Ex). A Lambeosaurus can move through spaces occupied by creatures of Large size or smaller, dealing 2d8+10 bludgeoning damage. A DC 22 Reflex save halves the damage. The save DC is Strength-based.
Crest Call (Ex). Its resonance can warn other Lambeosaurs and betray the position of a group across open ground, but it does not damage, deafen, confuse or frighten another creature.
Lambeosaurus — D&D 3.5e
Huge Animal (Neutral)
Hit Dice 10d8+50 (95 hp)
Initiative +0
Speed 40 ft. (8 squares)
Armor Class 14 (−2 size, +6 natural), touch 8, flat-footed 14
Base Attack/Grapple +7/+21
Attack tail slam +11 melee (1d8+9)
Full Attack tail slam +11 melee (1d8+9)
Space/Reach 15 ft./10 ft.
Special Attacks trample (2d10+9; Reflex DC 21 half)
Special Qualities low-light vision, scent
Saves Fort +14, Ref +7, Will +4
Abilities Str 23, Dex 11, Con 20, Int 1, Wis 12, Cha 7
Skills Listen +12, Spot +12, Swim +9
Racial Skill Bonuses +4 Listen, +4 Spot
Feats Alertness, Endurance, Great Fortitude, Run
Environment temperate and warm plains, forest margins and wetlands
Organization solitary, pair or gathering (8–40)
Challenge Rating 6
Treasure none
Alignment always neutral
Advancement 11–20 HD (Huge); 21–30 HD (Gargantuan)
Level Adjustment —
Special Abilities
Trample (Ex). As a full-round action the Lambeosaurus can move over Large or smaller creatures, dealing 2d10+9 bludgeoning damage. A DC 21 Reflex save halves this damage; the saving throw DC is Strength-based.
Combat
The Lambeosaurus withdraws when possible. If cornered, it uses its heavy tail or simply runs through an opening. Its crest has no thunder or sonic attack and cannot cause deafness.
The Echoing Crest
Lambeosaurus is one of the most conspicuous of the great duck-billed herbivores. Its jaws end in a broad beak that strips leaves and shoots from branches, while batteries of close-packed teeth grind the tougher plants behind them. The powerful hindlimbs carry a heavy trunk, and the shorter forelimbs assist its movement when browsing or travelling at an unhurried pace. The tail remains held out behind it, helping balance the body when the animal turns in a clearing.
The crest is not a horn. It grows from bones of the snout and nasal region, enclosing long passages for the air passing through the head. In a mature individual it forms a high, distinctive profile, although its size and curve differ among species and across the animal’s growth. A small juvenile may have scarcely any obvious crest at all. Travellers who know the adult outline sometimes fail to recognise the young grazing among nearby reeds.
The hidden passages within the crest are real, as are their complicated bends and connections. They may have altered and reinforced the creature’s voice. A low call could carry across open water and help animals recognise one another, while the striking silhouette could serve equally well in display. The exact notes made by the extinct animal are unknown. In the living refuges of the campaign its calls are deep and unmistakable, but they do not shatter bones, stun listeners or create supernatural thunder.
Where the River Widens
In the ancient river valleys, Lambeosaurus follows the freshest plants from meadow to river margin and back again. After heavy rains, new growth appears between the pools and on the raised banks. During drier months the animals range along dependable channels where shrubs and broad-leaved trees continue to grow. Their long feeding routes show in the ground as repeated bands of three-toed tracks, often accompanied by the smaller impressions left by forefeet when the animals have walked on all fours.
Where many individuals pass, a stand of reeds can become a broad open track. Such paths provide passage to small creatures of the valley as well as to travellers who happen upon them. Yet a path made by heavy animals is not always safe for a wagon. The broad feet of an adult may churn a bank into deep, soft pockets, and a ford that holds a dinosaur’s weight for a few moments can still trap a narrow cart wheel.
Several Lambeosaurs may feed within sight or hearing of one another, particularly when the plants are abundant. Their calls let the company keep contact through the mist. It is possible for a young animal to move into shelter while an adult remains in the open, but these movements should not be mistaken for drilled ranks. Their society is animal company, not a military order; an alarm can prompt retreat without any leader planning the route.
A Voice in the Mist
The crest makes Lambeosaurus valuable to those who know the waterways. A guide who hears three low notes carried over an evening ford may know that the far shore is occupied long before the animals appear. A second reply from another bank can reveal that several groups share the same valley. The sounds do not form a spoken language, but their pattern, spacing and direction provide clues to anyone patient enough to listen.
An injured adult or a frightened youngling may sound different from a calmly feeding animal. When the company suddenly falls silent, there may be a predator passing through the upper woods. A party crossing such country can treat this silence as an omen, especially if fresh tracks show the animals have not simply moved to another meadow.
Individual animals bear scars, colour variation and crests of different shape. An old ferryman might recognise the same enormous male that has visited the ford for several seasons, its crest marked by a pale line where an old wound has healed. These details belong to the living world. The fossils establish the architecture of the crest but cannot preserve the colour of every animal or the voice of a particular individual.
Warning Signs and Defensive Behaviour
A Lambeosaurus seldom begins a fight without displaying its concern. Feeding stops. The head rises. A low note may sound from the chest and crest while the eyes follow the intruder. If a smaller animal stands nearby, the adult may turn so that its bulk occupies the most direct route towards it. A party that halts and allows an opening will usually be left alone.
When pressed, the animal relies on the power of its tail and shoulders. A heavy blow can topple a person or knock a smaller predator from its path. More dangerous still is the movement of several frightened animals through the same narrow passage. A herd rushing from a grass fire may trample a barricade without even recognising it as an obstacle to anything but escape.
The greatest risk arises where there is no clear path. An old bridge, the entrance to a canyon or a road cut between ruined walls may funnel travellers and Lambeosaurs into the same space. A Dungeon Master can show the impending danger through the turning heads and overlapping calls of the animals before requiring a single attack roll. Characters who make room for a peaceful retreat should be rewarded with a safe passage.
Encounter: The Cinder Meadow
An old wagon road crosses a broad meadow beneath a ridge of dark conifers. A dry wind blows from the east, bringing the smell of smoke. Several Lambeosaurs have been feeding near a disused watchman’s hut, their calls carrying across the stream. Beyond the meadow stands a small farming settlement whose people have begun clearing the brush from the last unburned road. A forest fire is climbing the ridge, and the animals will soon have to flee.
The first signs. Fine grey ash settles among the grasses. Large three-toed prints mark the edge of the stream, and a low call sounds from behind the hut. The villagers’ messenger is trying to return with word that the fire has crossed the eastern track. He warns that the herd’s most direct retreat leads straight towards the settlement and the wagons still standing outside its earthen bank.
The ground. A broad animal track runs west to a rocky slope. A shallow drainage ditch crosses the south of the meadow, with a narrow plank bridge near the hut. The settlement lies north of the herd’s route. Its low bank and open gate can shelter people, but the old firebreak beyond the outer road is choked with grass. Smoke thickens as the wind turns.
Choices. The party can help the farmers clear a firebreak, move the wagons away from the animals’ likely path or ride to the rocky slope and open it as a route of escape. Loud horns and torches might turn the Lambeosaurs north, but that would drive them directly towards the houses. Quiet diversion and a clear exit are more useful than attacking them.
Complication. A gust carries burning debris across the ridge. Grass catches along the eastern side of the meadow. The nearest Lambeosaurus gives a deep alarm call and the adults begin moving west, but a smaller animal remains trapped beyond the drainage ditch. One adult turns back, driving across the edge of the plank bridge. The bridge shifts and the first village wagon begins to roll onto the road. The party must choose where to send its strongest people: to the calf, the bridge or the wagons.
Resolution. If a clear retreat is opened, the animals pass the settlement and vanish towards the western slope. The villagers can defend the firebreak while the company helps save the remaining livestock. If the Lambeosaurs are driven north into the road, the bank may break and the fire may spread among abandoned wagons. The animals understand only the danger behind them, not the harm their flight may cause.
Adventure hook. Once the flames pass, the burned meadow reveals a ring of old standing stones. Each bears the profile of a different crested animal, all facing a low hill that no longer appears on the local maps. A stone beneath the watchman’s hearth holds a brass key with the same emblems, left by surveyors who vanished generations ago.
Sources and Licensing
The D&D 2024, D&D 2014 and Pathfinder 1e profiles are original, unofficial rules adaptations. The D&D 3.5e profile retains the earlier creature credited to Shade, with corrected saving throws and explicit racial skill bonuses. None of these profiles is presented as an official published Lambeosaurus stat block. Pathfinder construction follows the animal type and Core Rulebook feats.
The earlier game creature was credited to Shade of the EN World forums, with a historical reference to the 1977 Monster Manual. The present version retains the traditional tail attack and the danger of herd trampling but does not assign damaging sonic abilities to an ordinary herbivore.
Natural history: San Diego Natural History Museum — Lambeosaurus; The internal crest anatomy of Lambeosaurini; Evans, nasal cavity homologies and crest function. The vocal and display interpretations are grounded in nasal anatomy; specific calls, habits and colour patterns belong to the campaign.
Hero artwork: Lambeosaurus magnicristatus reconstruction by Dmitry Bogdanov, corrected by FunkMonk in 2019, released into the public domain; Wikimedia Commons file and history.
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